US Bank Directory
Banks in O Fallon, MO
22 FDIC-insured banks operate 27 offices in O Fallon, Missouri, and 5 credit unions have 8 offices.
Source: FDIC BankFind, data as of September 5, 2026; NCUA call report as of March 31, 2026; hours checked October 10, 2026.
Bank branch map: O Fallon
Banks sit at the coordinates in their FDIC record; credit union offices at their NCUA address, located with the U.S. Census Bureau Geocoder. Point at a marker for today's hours, tap it for the address, directions and the bank's site.
Short answer: 27 banks and credit unions operate 35 locations in O Fallon, according to the FDIC and the NCUA. 33 of them have coordinates on record and are on the map. 15 publish opening hours.
Branches: FDIC, NCUA. Streets: loading.
33 locations on the map
Tap a cluster to zoom in
Positions are the regulators' own coordinates, or the Census Geocoder's point for the address, and can sit a few hundred feet from the door. Streets, buildings and parks come from OpenStreetMap through OpenFreeMap, with every street named as you zoom in; if that map cannot load, a simpler map drawn from the Census Bureau's TIGER/Line files takes its place. ATMs will follow with the Overture Maps import.
All banks and credit unions in O Fallon
Sorted by number of local branches. Each branch shows where its hours and phone number come from.
Short answer: 5 banks share the most locations in O Fallon, with 2 each. 17 banks have a single office in the city. Open any bank to see each address, today's hours where the bank publishes them and the phone number.
First Community Credit Union Credit union · 3
First Community Credit Union has 3 officees in O Fallon, 35 across Missouri. It is based in Chesterfield, MO and $4.99 billion in assets on March 31, 2026, according to its NCUA call report. All 3 of its O Fallon locations with published hours open on Saturday.
Who can join: see the credit union's site.
-
O Fallon Walmart1307 Highway K, 63366
All hours
Mon to Fri 8:30 am to 7 pm; Sat to Sun 9 am to 3 pm
Hours: NCUA, March 31, 2026
-
Ofallon3440 Highway K, 63368
All hours
Mon to Thu 8:30 am to 4 pm; Fri 8:30 am to 6 pm; Sat 8:30 am to 12:30 pm; Sun not published
Hours: NCUA, March 31, 2026
-
Winghaven771 Caledonia Parkway, 63368
All hours
Mon to Thu 8:30 am to 4 pm; Fri 8:30 am to 6 pm; Sat 8:30 am to 12:30 pm; Sun not published
Hours: NCUA, March 31, 2026
Central Bank Bank · 2
Central Bank has 2 branches in O Fallon, 125 across Missouri and 177 nationwide. FDIC records list its main office in Jefferson City, MO and show it operating since 1902. With $20.31 billion in total assets on June 30, 2026, it ranks No. 105 of 4,232 U.S. banks by total assets. In FDIC branch records, its longest-running O Fallon location is the O Fallon Mo South Branch at 2996 Highway K, dating to 1997; the newest, at 321 S Main St, to 2004. It does not publish hours in the sources this page uses; check its site before you go.
-
O Fallon Mo South Branch2996 Highway K, 63368
-
O'Fallon Mo North Branch321 S Main St, 63366
Commerce Bank Bank · 2
Commerce Bank has 2 branches in O Fallon, 89 across Missouri and 154 nationwide. FDIC records list its main office in Kansas City, MO and show it operating since 1984. With $35.02 billion in total assets on June 30, 2026, it ranks No. 61 of 4,232 U.S. banks by total assets. In FDIC branch records, its longest-running O Fallon location is the O'Fallon Branch at 101 E Elm St, dating to 1989; the newest, at 2913 Highway K, to 2003. All 2 of its O Fallon locations with published hours open on Saturday.
-
O'Fallon Branch101 E Elm St, 63366
All hours
Mon to Fri 9 am to 5 pm; Sat 9 am to 12 pm; Sun not published
Hours: Commerce Bank branch locator (All The Places), checked Oct 10, 2026
-
Deer Creek Crossing2913 Highway K, 63368
All hours
Mon to Fri 9 am to 5 pm; Sat 9 am to 12 pm; Sun not published
Hours: Commerce Bank branch locator (All The Places), checked Oct 10, 2026
Great Southern Bank Bank · 2
Great Southern Bank has 2 branches in O Fallon, 68 across Missouri and 108 nationwide. FDIC records list its main office in Reeds Spring, MO and show it operating since 1923. With $5.53 billion in total assets on June 30, 2026, it ranks No. 266 of 4,232 U.S. banks by total assets. In FDIC branch records, its longest-running O Fallon location is the Highway K at 2419 Highway K, dating to 2006; the newest, at 100 Christina Marie Dr, to 2012. It does not publish hours in the sources this page uses; check its site before you go.
-
Great Southern Bank100 Christina Marie Dr, 63368
-
Highway K2419 Highway K, 63368
Regions Bank Bank · 2
Regions Bank has 2 branches in O Fallon, 49 across Missouri and 1,256 nationwide. FDIC records list its main office in Birmingham, AL and show it operating since 1928. With $159.79 billion in total assets on June 30, 2026, it ranks No. 27 of 4,232 U.S. banks by total assets. In FDIC branch records, its longest-running O Fallon location is the Ofallon Mo Branch at 1201 Highway K, dating to 1991; the newest, at 3005 Highway K, to 2018. It does not publish hours in the sources this page uses; check its site before you go.
-
Ofallon Mo Branch1201 Highway K, 63366
-
Ofallon K & N Branch3005 Highway K, 63368
U.S. Bank Bank · 2
U.S. Bank has 2 branches in O Fallon, 129 across Missouri and 2,097 nationwide. FDIC records list its main office in Cincinnati, OH and show it operating since 1863. With $705.55 billion in total assets on June 30, 2026, it ranks No. 6 of 4,232 U.S. banks by total assets. In FDIC branch records, its longest-running O Fallon location is the O'Fallon Square Branch at 1 Ofallon Sq, dating to 1997; the newest, at 3029 Highway K, to 2006. All 2 of its O Fallon locations with published hours open on Saturday.
-
O'Fallon Square Branch1 Ofallon Sq, 63366
All hours
Mon not published; Tue to Fri 9 am to 5 pm; Sat 9 am to 1 pm; Sun not published
Hours: U.S. Bank branch locator (All The Places), checked Oct 10, 2026
-
Dardenne Crossing Schnucks Branch3029 Highway K, 63368
All hours
Mon not published; Tue to Fri 10 am to 6 pm; Sat 10 am to 2 pm; Sun not published
Hours: U.S. Bank branch locator (All The Places), checked Oct 10, 2026
Vantage Credit Union Credit union · 2
Vantage Credit Union has 2 officees in O Fallon, 15 across Missouri. It is based in Saint Charles, MO and $1.15 billion in assets on March 31, 2026, according to its NCUA call report. All 2 of its O Fallon locations with published hours open on Saturday.
Who can join: see the credit union's site.
-
Progress Point100 Progress Point Ct, 63368
All hours
Mon to Thu 9 am to 5 pm; Fri 9 am to 5:30 pm; Sat 9 am to 12 pm; Sun not published
Hours: NCUA, March 31, 2026
-
Ofallon29 Ofallon Sq, 63366
All hours
Mon to Thu 9 am to 5 pm; Fri 9 am to 5:30 pm; Sat 9 am to 12 pm; Sun not published
Hours: NCUA, March 31, 2026
Alliance Credit Union Credit union · 1
Alliance Credit Union has 1 office in O Fallon, 6 across Missouri. It is based in Fenton, MO and $422.0 million in assets on March 31, 2026, according to its NCUA call report. It opens on Saturday.
Who can join: see the credit union's site.
-
O'Fallon Branch1051 Highway K, 63366
All hours
Mon to Fri 9 am to 5:30 pm; Sat 9 am to 12 pm; Sun not published
Hours: NCUA, March 31, 2026
American Bank of Freedom Bank · 1
American Bank of Freedom has 1 branch in O Fallon, 8 across Missouri and 12 nationwide. FDIC records list its main office in Wellsville, MO and show it operating since 1880. With $948.3 million in total assets on June 30, 2026, it ranks No. 1,097 of 4,232 U.S. banks by total assets. The American Bank Of Missouri - O Fallon Branch at 901 Highway K dates to 2015 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
American Bank Of Missouri - O Fallon Branch901 Highway K, 63366
Bank of America Bank · 1
Bank of America has 1 branch in O Fallon, 50 across Missouri and 3,598 nationwide. FDIC records list its main office in Charlotte, NC and show it operating since 1904. With $2.65 trillion in total assets on June 30, 2026, it ranks No. 2 of 4,232 U.S. banks by total assets. The Highway K And Fallon Parkway Branch at 110 Fallon Loop Rd dates to 2007 in FDIC branch records. It opens on Saturday.
-
Highway K And Fallon Parkway Branch110 Fallon Loop Rd, 63368
All hours
Mon closed; Tue to Fri 9 am to 5 pm; Sat 9 am to 2 pm; Sun closed
Hours: Bank of America branch locator (All The Places), checked Oct 10, 2026
Bank of Franklin County Bank · 1
Bank of Franklin County has 1 branch in O Fallon, 6 across Missouri and 6 nationwide. FDIC records list its main office in Washington, MO and show it operating since 2000. With $419.4 million in total assets on June 30, 2026, it ranks No. 2,011 of 4,232 U.S. banks by total assets. The O' Fallon Branch at 100 Christina Marie Dr dates to 2017 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
O' Fallon Branch100 Christina Marie Dr, 63368
Bank of Springfield Bank · 1
Bank of Springfield has 1 branch in O Fallon, 3 across Missouri and 17 nationwide. FDIC records list its main office in Springfield, IL and show it operating since 1965. With $2.00 billion in total assets on June 30, 2026, it ranks No. 608 of 4,232 U.S. banks by total assets. The O'Fallon Mo Facility Branch at 101 Laura K Dr dates to 2021 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
O'Fallon Mo Facility Branch101 Laura K Dr, 63366
BMO Bank · 1
BMO has 1 branch in O Fallon, 23 across Missouri and 988 nationwide. FDIC records list its main office in Chicago, IL and show it operating since 1947. With $254.97 billion in total assets on June 30, 2026, it ranks No. 16 of 4,232 U.S. banks by total assets. The Winghaven Branch at 3001 Winghaven Blvd dates to 2007 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
Winghaven Branch3001 Winghaven Blvd, 63368
Chase Bank · 1
Chase has 1 branch in O Fallon, 45 across Missouri and 5,176 nationwide. FDIC records list its main office in Columbus, OH and show it operating since 1824. With $4.09 trillion in total assets on June 30, 2026, it ranks No. 1 of 4,232 U.S. banks by total assets. The O Fallan Branch at 2204 Highway K dates to 2021 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
O Fallan Branch2204 Highway K, 63368
First Mid Bank & Trust Bank · 1
First Mid Bank & Trust has 1 branch in O Fallon, 17 across Missouri and 87 nationwide. FDIC records list its main office in Mattoon, IL and show it operating since 1865. With $9.14 billion in total assets on June 30, 2026, it ranks No. 178 of 4,232 U.S. banks by total assets. The Ofallon Branch at 4190 Highway K dates to 2004 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
Ofallon Branch4190 Highway K, 63368
First State Bank of St. Charles, Missouri Bank · 1
First State Bank of St. Charles, Missouri has 1 branch in O Fallon, 7 across Missouri and 9 nationwide. FDIC records list its main office in St. Charles, MO and show it operating since 1867. With $535.2 million in total assets on June 30, 2026, it ranks No. 1,713 of 4,232 U.S. banks by total assets. The O'Fallon Facility at 300 Woodlawn Ave dates to 1990 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
O'Fallon Facility300 Woodlawn Ave, 63366
HomeBank Bank · 1
HomeBank has 1 branch in O Fallon, 7 across Missouri and 9 nationwide. FDIC records list its main office in Palmyra, MO and show it operating since 1934. With $733.3 million in total assets on June 30, 2026, it ranks No. 1,341 of 4,232 U.S. banks by total assets. The Lake St Louis/Ofallon Branch at 2183 W Terra Ln dates to 2020 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
Lake St Louis/Ofallon Branch2183 W Terra Ln, 63366
Lindell Bank Bank · 1
Lindell Bank has 1 branch in O Fallon, 14 across Missouri and 15 nationwide. FDIC records list its main office in St. Louis, MO and show it operating since 1923. With $915.2 million in total assets on June 30, 2026, it ranks No. 1,133 of 4,232 U.S. banks by total assets. The O'Fallon Branch # 94 at 4521 State Hwy K dates to 2004 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
O'Fallon Branch # 944521 State Hwy K, 63368
Midland States Bank Bank · 1
Midland States Bank has 1 branch in O Fallon, 12 across Missouri and 60 nationwide. FDIC records list its main office in Effingham, IL and show it operating since 1881. With $6.69 billion in total assets on June 30, 2026, it ranks No. 233 of 4,232 U.S. banks by total assets. The O'Fallon Branch at 2341 Highway K dates to 2007 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
O'Fallon Branch2341 Highway K, 63368
Peoples Bank & Trust Co. Bank · 1
Peoples Bank & Trust Co. has 1 branch in O Fallon, 10 across Missouri and 10 nationwide. FDIC records list its main office in Troy, MO and show it operating since 1924. With $908.3 million in total assets on June 30, 2026, it ranks No. 1,140 of 4,232 U.S. banks by total assets. The O'Fallon Branch at 1310 N Main St dates to 1996 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
O'Fallon Branch1310 N Main St, 63366
PNC Bank Bank · 1
PNC Bank has 1 branch in O Fallon, 27 across Missouri and 2,413 nationwide. FDIC records list its main office in Wilmington, DE and show it operating since 1804. With $609.77 billion in total assets on June 30, 2026, it ranks No. 8 of 4,232 U.S. banks by total assets. The Bryan And Feise Road Branch at 1642 Bryan Rd dates to 2005 in FDIC branch records. It opens on Saturday.
-
Bryan And Feise Road Branch1642 Bryan Rd, 63368
All hours
Mon not published; Tue to Fri 9 am to 5 pm; Sat 9 am to 1 pm; Sun not published
Hours: PNC Bank branch locator (All The Places), checked Oct 3, 2026
Simmons Bank Bank · 1
Simmons Bank has 1 branch in O Fallon, 47 across Missouri and 230 nationwide. FDIC records list its main office in Pine Bluff, AR and show it operating since 1903. With $24.73 billion in total assets on June 30, 2026, it ranks No. 87 of 4,232 U.S. banks by total assets. The O'Fallon Mo Branch at 2455 Highway K dates to 2004 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
O'Fallon Mo Branch2455 Highway K, 63368
St. Johns Bank Bank · 1
St. Johns Bank has 1 branch in O Fallon, 4 across Missouri and 4 nationwide. FDIC records list its main office in Saint Louis, MO and show it operating since 1926. With $297.1 million in total assets on June 30, 2026, it ranks No. 2,496 of 4,232 U.S. banks by total assets. The O'Fallon Branch at 2897 Highway K dates to 1998 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
O'Fallon Branch2897 Highway K, 63368
The Bank of Old Monroe Bank · 1
The Bank of Old Monroe has 1 branch in O Fallon, 5 across Missouri and 5 nationwide. FDIC records list its main office in Old Monroe, MO and show it operating since 1906. With $994.6 million in total assets on June 30, 2026, it ranks No. 1,051 of 4,232 U.S. banks by total assets. The O'Fallon Branch at 401 T R Hughes Blvd dates to 2001 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
O'Fallon Branch401 T R Hughes Blvd, 63366
Together Credit Union Credit union · 1
Together Credit Union has 1 office in O Fallon, 13 across Missouri. It is based in Saint Louis, MO and $2.72 billion in assets on March 31, 2026, according to its NCUA call report. It opens on Saturday.
Who can join: see the credit union's site.
-
O'Fallon2531 Highway K, 63368
All hours
Mon to Thu 9 am to 5 pm; Fri not published; Sat 9 am to 6 pm; Sun not published
Hours: NCUA, March 31, 2026
UMB Bank Bank · 1
UMB Bank has 1 branch in O Fallon, 45 across Missouri and 207 nationwide. FDIC records list its main office in Kansas City, MO and show it operating since 1902. With $71.90 billion in total assets on June 30, 2026, it ranks No. 40 of 4,232 U.S. banks by total assets. The Winghaven Branch at 9957 Winghaven Blvd dates to 2004 in FDIC branch records. It opens on Saturday.
-
Winghaven Branch9957 Winghaven Blvd, 63368
All hours
Mon to Thu 9 am to 5 pm; Fri 9 am to 5:30 pm; Sat 9 am to 12 pm; Sun not published
Hours: UMB Bank branch locator (All The Places), checked Oct 10, 2026
West Community Credit Union Credit union · 1
West Community Credit Union has 1 office in O Fallon, 10 across Missouri. It is based in O Fallon, MO and $498.8 million in assets on March 31, 2026, according to its NCUA call report. It opens on Saturday.
Who can join: see the credit union's site.
-
Main Office main office4161 Highway K, 63368
All hours
Mon to Tue not published; Wed 9 am to 5 pm; Thu not published; Fri 10 am to 5 pm; Sat 9 am to 6 pm; Sun not published
Hours: NCUA, March 31, 2026
Join a credit union in O Fallon
5 credit unions have 8 offices here: First Community Credit Union, Vantage Credit Union, Together Credit Union, West Community Credit Union and Alliance Credit Union. Each office is listed above with the phone and the hours it filed with the NCUA (call report as of March 31, 2026). Who can join each one is on its own site; the credit unions in O Fallon page has every office in the state's directory.
Banking in O Fallon: the local picture
Short answer: 22 banks run 27 branches in O Fallon according to the FDIC. A population estimate for this place is not available from the Census Bureau, so branches per resident are not shown.
Of the 22 banks, 0 have their main office in O Fallon, 12 elsewhere in Missouri and 10 out of state, according to the FDIC.
The bank with the longest record here is PNC Bank, operating since 1804 according to the FDIC. In FDIC branch records, the longest-running branch is Commerce Bank's office at 101 E Elm St, dating to 1989; the newest is Chase's at 2204 Highway K, from 2021.
5 credit unions have 8 offices in O Fallon, according to the NCUA. Who can join each one is on the credit unions page.
Of the 15 locations with published hours. 15 open on Saturday. 20 locations have no published hours in these sources.
Banks by ZIP code in O Fallon
Offices grouped by the ZIP code in their FDIC or NCUA record.
Short answer: ZIP 63368 has the most bank and credit union offices in O Fallon (22), followed by 63366 (13). Offices are spread across 2 ZIP codes.
| ZIP code | Offices | Institutions | Most offices |
|---|---|---|---|
| 63368 | 22 | 20 | First Community Credit Union, Great Southern Bank, BMO |
| 63366 | 13 | 13 | Alliance Credit Union, American Bank of Freedom, Bank of Springfield |
Banks and credit unions open on Saturday in O Fallon
Short answer: 15 of the 15 O Fallon locations with published hours open on Saturday, run by 10 institutions.
- U.S. Bank: 2 of 2 branches (1 Ofallon Sq: Saturday 9 am to 1 pm, and 1 more)
- Commerce Bank: 2 of 2 branches (101 E Elm St: Saturday 9 am to 12 pm, and 1 more)
- Bank of America: 1 of 1 branch (110 Fallon Loop Rd: Saturday 9 am to 2 pm)
- PNC Bank: 1 of 1 branch (1642 Bryan Rd: Saturday 9 am to 1 pm)
- UMB Bank: 1 of 1 branch (9957 Winghaven Blvd: Saturday 9 am to 12 pm)
- First Community Credit Union: 3 of 3 offices (1307 Highway K: Saturday 9 am to 3 pm, and 2 more)
- Vantage Credit Union: 2 of 2 offices (100 Progress Point Ct: Saturday 9 am to 12 pm, and 1 more)
- Together Credit Union: 1 of 1 office (2531 Highway K: Saturday 9 am to 6 pm)
- West Community Credit Union: 1 of 1 office (4161 Highway K: Saturday 9 am to 6 pm)
- Alliance Credit Union: 1 of 1 office (1051 Highway K: Saturday 9 am to 12 pm)
Credit union hours are the text each credit union filed with the NCUA, call report as of March 31, 2026; a day the filing does not mention is shown as not published, never as closed. Bank branches show hours only where the bank publishes them in a source this page uses; 20 of the 35 locations here have no published hours yet. The source and date sit under each office. Banks and credit unions often close on Federal Reserve holidays; call ahead.
Chase, Bank of America and other national banks
Which big national banks have branches in O Fallon, and where the nearest one is if they do not.
Short answer: In O Fallon: Chase (1), Bank of America (1), PNC Bank (1), U.S. Bank (2), Regions Bank (2), BMO (1). No branches in O Fallon: Wells Fargo (nearest in Saint Louis, 28 mi), Truist, Fifth Third Bank, Huntington (nearest in Saint Louis, 21 mi), TD Bank.
| Bank | In O Fallon | Nearest branch if none here |
|---|---|---|
| Chase | 1 branch | here |
| Bank of America | 1 branch | here |
| PNC Bank | 1 branch | here |
| U.S. Bank | 2 branches | here |
| Regions Bank | 2 branches | here |
| BMO | 1 branch | here |
| Wells Fargo | None | Saint Louis, 28 miles away |
| Truist | None | none in Missouri |
| Fifth Third Bank | None | none in Missouri |
| Huntington | None | Saint Louis, 21 miles away |
| TD Bank | None | none in Missouri |
Branch counts from FDIC BankFind as of September 5, 2026. Distances are straight-line miles from the center of O Fallon to the nearest branch in Missouri.
What your savings could earn
National benchmarks and the best published offers, from the Banrox Bank Rates tracker. Enter your own balance and rate to compare.
Short answer: At the national average savings rate of 0.38%, $10,000 kept in savings for a year earns about $38. The best published savings rate in the tracker, 3.75% at CIT Bank, earns about $375. The national average 12-month CD pays 1.71%.
| Offer | Bank | APY | Term | Minimum |
|---|---|---|---|---|
| Savings | CIT Bank | 3.75% | none | $5,000 |
| Savings | Barclays | 3.50% | none | $0 |
| Savings | Marcus by Goldman Sachs | 3.40% | none | $0 |
| CD | Synchrony Bank | 4.35% | 60 Months | $0 |
| CD | Marcus by Goldman Sachs | 4.35% | 24 Months | $500 |
| CD | American Express National Bank | 4.25% | 10 Months | $0 |
Rates are the banks' published APYs as tracked on the Banrox Bank Rates page, with the date next to each benchmark; they are not offers from Banrox and can change daily. Interest is before tax. The best offers are mostly online banks and are open to O Fallon residents like anyone else.
Banks near O Fallon
Nearby cities with at least two banks, by straight-line distance. Counts from FDIC BankFind.
Short answer: The closest towns with more choice are Dardenne Prairie (3 miles) and Cottleville (4 miles). Saint Charles, 9 miles away, has the most banks nearby: 21.
| City | Distance | Banks | Branches |
|---|---|---|---|
| Banks in Dardenne Prairie, MO | 3 mi | 2 | 2 |
| Banks in Cottleville, MO | 4 mi | 2 | 2 |
| Banks in Lake Saint Louis, MO | 4 mi | 8 | 9 |
| Banks in Weldon Spring, MO | 5 mi | 2 | 2 |
| Banks in Saint Peters, MO | 5 mi | 17 | 23 |
| Banks in Saint Charles, MO | 9 mi | 21 | 30 |
| Banks in Wentzville, MO | 9 mi | 12 | 12 |
| Banks in Chesterfield, MO | 11 mi | 20 | 25 |
Bank branch openings and closings in O Fallon
FDIC branch records, between September 5, 2025 and September 5, 2026.
Short answer: FDIC branch records show no bank branch openings in O Fallon between September 5, 2025 and September 5, 2026. Closings and relocations are not tracked by the sources this page uses yet.
Banks and credit unions based in O Fallon
Short answer: 1 institution has its main office in O Fallon: West Community Credit Union.
| Institution | Type | Total assets, March 31, 2026 | Offices here |
|---|---|---|---|
| West Community Credit Union | Credit union | $498.8 million | 1 |
Banks: FDIC BankFind (community-bank flag and assets). Credit unions: NCUA call report.
Largest banks in O Fallon by total assets
Ranked by each bank's total assets on its FDIC balance sheet, which covers the whole bank, not only its O Fallon offices.
Short answer: Chase is the largest bank with offices in O Fallon, with $4.09 trillion in total assets on June 30, 2026, No. 1 among U.S. banks by total assets. Bank of America is second with $2.65 trillion. Local deposit shares will follow once the FDIC Summary of Deposits is imported.
| Bank | Total assets | Rank | Offices here | Main office |
|---|---|---|---|---|
| Chase | $4.09 trillion | No. 1 | 1 | Columbus, OH |
| Bank of America | $2.65 trillion | No. 2 | 1 | Charlotte, NC |
| U.S. Bank | $705.55 billion | No. 6 | 2 | Cincinnati, OH |
| PNC Bank | $609.77 billion | No. 8 | 1 | Wilmington, DE |
| BMO | $254.97 billion | No. 16 | 1 | Chicago, IL |
| Regions Bank | $159.79 billion | No. 27 | 2 | Birmingham, AL |
| UMB Bank | $71.90 billion | No. 40 | 1 | Kansas City, MO |
| Commerce Bank | $35.02 billion | No. 61 | 2 | Kansas City, MO |
| Simmons Bank | $24.73 billion | No. 87 | 1 | Pine Bluff, AR |
| Central Bank | $20.31 billion | No. 105 | 2 | Jefferson City, MO |
Total assets and ranks from FDIC BankFind as of June 30, 2026. Rank is among active banks that report total assets to the FDIC.
Banks in O Fallon: FAQ
How many banks are in O Fallon, MO?
O Fallon has 22 banks with 27 branches and 5 credit unions with 8 offices, according to FDIC data as of September 5, 2026 and NCUA data as of March 31, 2026.
Which bank has the most branches in O Fallon?
U.S. Bank, with 2. Regions Bank has 2 and Commerce Bank has 2.
Is there a U.S. Bank in O Fallon, MO?
Yes. FDIC data lists 2 U.S. Bank branches in O Fallon as of September 5, 2026. Its branches are listed under U.S. Bank above, with the address and directions for each.
Is there a Regions Bank in O Fallon, MO?
Yes. FDIC data lists 2 Regions Bank branches in O Fallon as of September 5, 2026. Its branches are listed under Regions Bank above, with the address and directions for each.
Is there a Commerce Bank in O Fallon, MO?
Yes. FDIC data lists 2 Commerce Bank branches in O Fallon as of September 5, 2026. Its branches are listed under Commerce Bank above, with the address and directions for each.
Is there a Wells Fargo in O Fallon, MO?
No. FDIC data lists no Wells Fargo branch in O Fallon as of September 5, 2026. The nearest is in Saint Louis, about 28 miles away in a straight line.
Which banks in O Fallon are open on Saturday?
U.S. Bank, Commerce Bank, Bank of America and PNC Bank and 6 more publish Saturday hours for one or more O Fallon locations. The Saturday section above lists each one with its hours. 20 of the 35 locations here do not publish hours in the sources this page uses; call ahead.
Which banks are headquartered in O Fallon?
West Community Credit Union has its main office in O Fallon, according to the FDIC and the NCUA.
What is the oldest bank in O Fallon?
PNC Bank has the longest record among banks with a branch here: the FDIC shows it operating since 1804.
Which credit unions can I join in O Fallon?
First Community Credit Union, Vantage Credit Union, Together Credit Union and West Community Credit Union and 1 more have offices in O Fallon. Check each credit union's membership rules before you apply.
Did any bank branches open or close in O Fallon in the past year?
FDIC branch records show no branch openings between September 5, 2025 and September 5, 2026. Closings and relocations are not tracked by the sources this page uses yet.
Where can I find more banks near O Fallon?
Nearby cities with more banks include Dardenne Prairie, Cottleville, Lake Saint Louis. Dardenne Prairie is 3 miles away with 2 banks.
How we build this page
Every figure above comes from one of these sources. Nothing is typed by hand, nothing is estimated.
| Data | Source | License | Updated | Data as of |
|---|---|---|---|---|
| FDIC-insured banks: branches, main offices, total assets, dates established | FDIC BankFind Suite API | Public data (U.S. government) | Monthly import | Sep 5, 2026 |
| Credit union offices, phones and hours as filed with the NCUA, total assets | NCUA call report data | Public data (U.S. government) | Quarterly import | Mar 31, 2026 |
| Map coordinates of 6 credit union offices whose NCUA record has none, from the office address | U.S. Census Bureau Geocoder | Public data (U.S. government) | With each NCUA import | Oct 19, 2026 |
| Bank branch hours, phones and branch pages (7 of 27 branches: Bank of America, Commerce Bank, PNC Bank, U.S. Bank, UMB Bank) | The banks' own branch locators, collected by All The Places | CC0 (All The Places data); each bank's locator is the primary source | Weekly spider run, monthly refresh here | Oct 10, 2026 |
| Savings and CD rates, national averages | Banrox Bank Rates | Banrox, from the banks' own rate pages and FDIC national rates | Weekly | see each rate |
See your odds before you apply
Banrox shows how likely a card or loan is for your profile, from your own data, without a hard pull. Platform live; card in early access; no card issued.
Check your odds