US Bank Directory
Banks in Oak Brook, IL
8 FDIC-insured banks operate 8 offices in Oak Brook, Illinois.
Source: FDIC BankFind, data as of September 5, 2026; hours checked October 10, 2026.
Bank branch map: Oak Brook
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: 8 banks and credit unions operate 8 locations in Oak Brook, according to the FDIC. 8 of them have coordinates on record and are on the map. 2 publish opening hours.
Branches: FDIC, NCUA. Streets: loading.
8 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 in Oak Brook
Sorted by number of local branches. Each branch shows where its hours and phone number come from.
Short answer: 8 banks share the most locations in Oak Brook, with 1 each. 8 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.
Chase Bank · 1
Chase has 1 branch in Oak Brook, 265 across Illinois 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 Oak Brook Branch at 2122 W 22nd St dates to 1934 in FDIC branch records. It opens on Saturday.
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Oak Brook Branch2122 W 22nd St, 60523
All hours
Mon to Fri 9 am to 5 pm; Sat 9 am to 2 pm; Sun not published
Hours: Chase branch locator (All The Places), checked Oct 10, 2026
Citibank Bank · 1
Citibank has 1 branch in Oak Brook, 57 across Illinois and 667 nationwide. FDIC records list its main office in Sioux Falls, SD and show it operating since 1812. With $1.98 trillion in total assets on June 30, 2026, it ranks No. 3 of 4,232 U.S. banks by total assets. The Oak Brook Branch at 1900 Spring Rd dates to 1933 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
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Oak Brook Branch1900 Spring Rd, 60523
Fifth Third Bank Bank · 1
Fifth Third Bank has 1 branch in Oak Brook, 161 across Illinois and 1,508 nationwide. FDIC records list its main office in Cincinnati, OH and show it operating since 1865. With $299.18 billion in total assets on June 30, 2026, it ranks No. 14 of 4,232 U.S. banks by total assets. The Oak Brook Branch at 1400 16th St dates to 1962 in FDIC branch records. It opens on Saturday.
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Oak Brook Branch1400 16th St, 60523
All hours
Mon closed; Tue to Thu 9 am to 5:30 pm; Fri 9 am to 6 pm; Sat 9 am to 2 pm; Sun closed
Hours: Fifth Third Bank branch locator (All The Places), checked Oct 10, 2026
Millennium Bank Bank · 1
Millennium Bank has 1 branch in Oak Brook, 3 across Illinois and 3 nationwide. FDIC records list its main office in Des Plaines, IL and show it operating since 2007. With $844.5 million in total assets on June 30, 2026, it ranks No. 1,204 of 4,232 U.S. banks by total assets. The Oak Brook Branch at 3824 York Road dates to 2024 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
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Oak Brook Branch3824 York Road, 60523
Old Second National Bank Bank · 1
Old Second National Bank has 1 branch in Oak Brook, 57 across Illinois and 57 nationwide. FDIC records list its main office in Aurora, IL and show it operating since 1887. With $6.86 billion in total assets on June 30, 2026, it ranks No. 225 of 4,232 U.S. banks by total assets. The Oak Brook Branch at 1515 W 22nd St Ste 100w dates to 2025 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
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Oak Brook Branch1515 W 22nd St Ste 100w, 60523
Pan American Bank & Trust Bank · 1
Pan American Bank & Trust has 1 branch in Oak Brook, 6 across Illinois and 6 nationwide. FDIC records list its main office in Melrose Park, IL and show it operating since 1995. With $536.1 million in total assets on June 30, 2026, it ranks No. 1,711 of 4,232 U.S. banks by total assets. The Oak Brook Branch at 1110 Jorie Blvd dates to 2026 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
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Oak Brook Branch1110 Jorie Blvd, 60523
Providence Bank & Trust Bank · 1
Providence Bank & Trust has 1 branch in Oak Brook, 13 across Illinois and 16 nationwide. FDIC records list its main office in South Holland, IL and show it operating since 2004. With $1.56 billion in total assets on June 30, 2026, it ranks No. 723 of 4,232 U.S. banks by total assets. The Oak Brook Branch at 2001 York Rd dates to 2022 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
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Oak Brook Branch2001 York Rd, 60523
Republic Bank of Chicago Bank · 1
Republic Bank of Chicago has 1 branch in Oak Brook, 20 across Illinois and 20 nationwide. FDIC records list its main office in Oak Brook, IL and show it operating since 1964. With $2.61 billion in total assets on June 30, 2026, it ranks No. 484 of 4,232 U.S. banks by total assets. Its main office at 2221 Camden Ct dates to 1964 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
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Main Office main office2221 Camden Ct, 60523
Banking in Oak Brook: the local picture
Short answer: 8 banks run 8 branches in Oak Brook 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 8 banks, 1 has its main office in Oak Brook, 4 elsewhere in Illinois and 3 out of state, according to the FDIC.
The bank with the longest record here is Citibank, operating since 1812 according to the FDIC. In FDIC branch records, the longest-running branch is Citibank's office at 1900 Spring Rd, dating to 1933; the newest is Pan American Bank & Trust's at 1110 Jorie Blvd, from 2026.
Of the 2 locations with published hours. 2 open on Saturday. 6 locations have no published hours in these sources.
Banks open on Saturday in Oak Brook
Short answer: 2 of the 2 Oak Brook locations with published hours open on Saturday, run by 2 institutions.
- Chase: 1 of 1 branch (2122 W 22nd St: Saturday 9 am to 2 pm)
- Fifth Third Bank: 1 of 1 branch (1400 16th St: Saturday 9 am to 2 pm)
Bank branches show hours only where the bank publishes them in a source this page uses; 6 of the 8 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 Oak Brook, and where the nearest one is if they do not.
Short answer: In Oak Brook: Chase (1), Fifth Third Bank (1). No branches in Oak Brook: Wells Fargo (nearest in Westchester, 3 mi), Bank of America (nearest in Villa Park, 2 mi), PNC Bank (nearest in Elmhurst, 3 mi), U.S. Bank (nearest in Elmhurst, 3 mi), Truist, Huntington (nearest in Elmhurst, 2 mi), Regions Bank (nearest in Bloomington, 108 mi), TD Bank, BMO (nearest in Elmhurst, 2 mi).
| Bank | In Oak Brook | Nearest branch if none here |
|---|---|---|
| Chase | 1 branch | here |
| Fifth Third Bank | 1 branch | here |
| Wells Fargo | None | Westchester, 3 miles away |
| Bank of America | None | Villa Park, 2 miles away |
| PNC Bank | None | Elmhurst, 3 miles away |
| U.S. Bank | None | Elmhurst, 3 miles away |
| Truist | None | none in Illinois |
| Huntington | None | Elmhurst, 2 miles away |
| Regions Bank | None | Bloomington, 108 miles away |
| TD Bank | None | none in Illinois |
| BMO | None | Elmhurst, 2 miles away |
Branch counts from FDIC BankFind as of September 5, 2026. Distances are straight-line miles from the center of Oak Brook to the nearest branch in Illinois.
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 Oak Brook residents like anyone else.
Banks near Oak Brook
Nearby cities with at least two banks, by straight-line distance. Counts from FDIC BankFind.
Short answer: The closest towns with more choice are Oakbrook Terrace (1 mile) and Villa Park (3 miles). Elmhurst, 3 miles away, has the most banks nearby: 12.
| City | Distance | Banks | Branches |
|---|---|---|---|
| Banks in Oakbrook Terrace, IL | 1 mi | 4 | 4 |
| Banks in Villa Park, IL | 3 mi | 7 | 7 |
| Banks in Hinsdale, IL | 3 mi | 6 | 9 |
| Banks in Westchester, IL | 3 mi | 7 | 8 |
| Banks in Elmhurst, IL | 3 mi | 12 | 18 |
| Banks in Westmont, IL | 3 mi | 8 | 8 |
| Banks in Lombard, IL | 3 mi | 8 | 14 |
| Banks in Clarendon Hills, IL | 4 mi | 2 | 2 |
Bank branch openings and closings in Oak Brook
FDIC branch records, between September 5, 2025 and September 5, 2026.
Short answer: FDIC branch records show 1 branch opening in Oak Brook between September 5, 2025 and September 5, 2026.
| Date | Change | Bank | Address |
|---|---|---|---|
| Apr 6, 2026 | Opened | Pan American Bank & Trust | 1110 Jorie Blvd, 60523 |
Effective dates as recorded in FDIC BankFind branch history. Closings and relocations are not tracked by the sources this page uses yet. Credit union offices are not included; the NCUA does not publish opening dates.
Banks and credit unions based in Oak Brook
Short answer: 1 institution has its main office in Oak Brook: Republic Bank of Chicago.
| Institution | Type | Total assets, June 30, 2026 | Offices here |
|---|---|---|---|
| Republic Bank of Chicago | Bank | $2.61 billion | 1 |
Banks: FDIC BankFind (community-bank flag and assets). Credit unions: NCUA call report.
Largest banks in Oak Brook by total assets
Ranked by each bank's total assets on its FDIC balance sheet, which covers the whole bank, not only its Oak Brook offices.
Short answer: Chase is the largest bank with offices in Oak Brook, with $4.09 trillion in total assets on June 30, 2026, No. 1 among U.S. banks by total assets. Citibank is second with $1.98 trillion. 1 of the 8 bank is headquartered here. 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 |
| Citibank | $1.98 trillion | No. 3 | 1 | Sioux Falls, SD |
| Fifth Third Bank | $299.18 billion | No. 14 | 1 | Cincinnati, OH |
| Old Second National Bank | $6.86 billion | No. 225 | 1 | Aurora, IL |
| Republic Bank of Chicago | $2.61 billion | No. 484 | 1 | Oak Brook, IL |
| Providence Bank & Trust | $1.56 billion | No. 723 | 1 | South Holland, IL |
| Millennium Bank | $844.5 million | No. 1,204 | 1 | Des Plaines, IL |
| Pan American Bank & Trust | $536.1 million | No. 1,711 | 1 | Melrose Park, IL |
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 Oak Brook: FAQ
How many banks are in Oak Brook, IL?
Oak Brook has 8 banks with 8 branches, according to FDIC data as of September 5, 2026.
Which bank has the most branches in Oak Brook?
Chase, with 1. Citibank has 1 and Fifth Third Bank has 1.
Is there a Chase in Oak Brook, IL?
Yes. FDIC data lists 1 Chase branch in Oak Brook as of September 5, 2026. The address and directions are under Chase above.
Is there a Citibank in Oak Brook, IL?
Yes. FDIC data lists 1 Citibank branch in Oak Brook as of September 5, 2026. The address and directions are under Citibank above.
Is there a Fifth Third Bank in Oak Brook, IL?
Yes. FDIC data lists 1 Fifth Third Bank branch in Oak Brook as of September 5, 2026. The address and directions are under Fifth Third Bank above.
Is there a Wells Fargo in Oak Brook, IL?
No. FDIC data lists no Wells Fargo branch in Oak Brook as of September 5, 2026. The nearest is in Westchester, about 3 miles away in a straight line.
Which banks in Oak Brook are open on Saturday?
Chase and Fifth Third Bank publish Saturday hours for one or more Oak Brook locations. The Saturday section above lists each one with its hours. 6 of the 8 locations here do not publish hours in the sources this page uses; call ahead.
Which banks are headquartered in Oak Brook?
Republic Bank of Chicago has its main office in Oak Brook, according to the FDIC.
What is the oldest bank in Oak Brook?
Citibank has the longest record among banks with a branch here: the FDIC shows it operating since 1812.
Did any bank branches open or close in Oak Brook in the past year?
FDIC branch records show 1 branch opening 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 Oak Brook?
Nearby cities with more banks include Oakbrook Terrace, Villa Park, Hinsdale. Oakbrook Terrace is 1 miles away with 4 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 |
| Bank branch hours, phones and branch pages (2 of 8 branches: Chase, Fifth Third 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 |
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