US Bank Directory
Banks in Diamond Bar, CA
12 FDIC-insured banks operate 13 offices in Diamond Bar, California, and 1 credit union has 1 office.
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: Diamond Bar
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: 13 banks and credit unions operate 14 locations in Diamond Bar, according to the FDIC and the NCUA. 14 of them have coordinates on record and are on the map. 6 publish opening hours.
Branches: FDIC, NCUA. Streets: loading.
14 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 Diamond Bar
Sorted by number of local branches. Each branch shows where its hours and phone number come from.
Short answer: Chase has the most locations in Diamond Bar, with 2. The other 11 each 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 · 2
Chase has 2 branches in Diamond Bar, 858 across California 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. In FDIC branch records, its longest-running Diamond Bar location is the Diamond Bar Branch at 1100 S Diamond Bar Blvd, dating to 1919; the newest, at 2717 S Diamond Bar Blvd, to 2013. All 2 of its Diamond Bar locations with published hours open on Saturday.
-
Diamond Bar Branch1100 S Diamond Bar Blvd, 91765
All hours
Mon to Thu 9 am to 5 pm; Fri 9 am to 6 pm; Sat 9 am to 2 pm; Sun not published
Hours: Chase branch locator (All The Places), checked Oct 10, 2026
-
Diamond Bar Blvd & Cold Springs2717 S Diamond Bar Blvd, 91765
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
Bank of America Bank · 1
Bank of America has 1 branch in Diamond Bar, 684 across California 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 Grand And Diamond Bar Branch at 1196 S Diamond Bar Blvd dates to 1979 in FDIC branch records. It opens on Saturday.
-
Grand And Diamond Bar Branch1196 S Diamond Bar Blvd, 91765
All hours
Mon closed; Tue to Fri 9 am to 5 pm; Sat 9 am to 4 pm; Sun closed
Hours: Bank of America branch locator (All The Places), checked Oct 10, 2026
Bank of Hope Bank · 1
Bank of Hope has 1 branch in Diamond Bar, 26 across California and 78 nationwide. FDIC records list its main office in Los Angeles, CA and show it operating since 1986. With $18.99 billion in total assets on June 30, 2026, it ranks No. 110 of 4,232 U.S. banks by total assets. The Diamond Bar Branch at 2809 S Diamond Bar Blvd dates to 2008 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
Diamond Bar Branch2809 S Diamond Bar Blvd, 91765
Cathay Bank Bank · 1
Cathay Bank has 1 branch in Diamond Bar, 44 across California and 65 nationwide. FDIC records list its main office in Los Angeles, CA and show it operating since 1962. With $24.64 billion in total assets on June 30, 2026, it ranks No. 88 of 4,232 U.S. banks by total assets. The Diamond Bar Branch at 1195 S Diamond Bar Blvd dates to 2000 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
Diamond Bar Branch1195 S Diamond Bar Blvd, 91765
Certified Credit Union Credit union · 1
Certified Credit Union has 1 office in Diamond Bar, 12 across California. It is based in El Monte, CA and $920.0 million in assets on March 31, 2026, according to its NCUA call report. Its published hours do not list Saturday.
Who can join: see the credit union's site.
-
Diamond Bar1310 Valley Vista Dr, 91765
All hours
Mon to Tue 9 am to 5 pm; Wed 10 am to 5 pm; Thu not published; Fri 9 am to 5 pm; Sat to Sun not published
Hours: NCUA, March 31, 2026
Citibank Bank · 1
Citibank has 1 branch in Diamond Bar, 271 across California 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 Diamond Bar Branch at 1188 S Diamond Bar Blvd dates to 2023 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
Diamond Bar Branch1188 S Diamond Bar Blvd, 91765
CTBC Bank Corp. (USA) Bank · 1
CTBC Bank Corp. (USA) has 1 branch in Diamond Bar, 17 across California and 20 nationwide. FDIC records list its main office in Los Angeles, CA and show it operating since 1965. With $5.87 billion in total assets on June 30, 2026, it ranks No. 256 of 4,232 U.S. banks by total assets. The Diamond Bar Branch at 2783 S Diamond Bar Blvd dates to 2022 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
Diamond Bar Branch2783 S Diamond Bar Blvd, 91765
East West Bank Bank · 1
East West Bank has 1 branch in Diamond Bar, 68 across California and 97 nationwide. FDIC records list its main office in Pasadena, CA and show it operating since 1972. With $84.32 billion in total assets on June 30, 2026, it ranks No. 37 of 4,232 U.S. banks by total assets. The Diamond Bar Branch at 379 S Diamond Bar Blvd dates to 1990 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
Diamond Bar Branch379 S Diamond Bar Blvd, 91765
Preferred Bank Bank · 1
Preferred Bank has 1 branch in Diamond Bar, 14 across California and 16 nationwide. FDIC records list its main office in Los Angeles, CA and show it operating since 1991. With $7.73 billion in total assets on June 30, 2026, it ranks No. 203 of 4,232 U.S. banks by total assets. The Diamond Bar Branch at 1373 S Diamond Bar Blvd dates to 2002 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
Diamond Bar Branch1373 S Diamond Bar Blvd, 91765
Royal Business Bank Bank · 1
Royal Business Bank has 1 branch in Diamond Bar, 13 across California and 25 nationwide. FDIC records list its main office in Los Angeles, CA and show it operating since 2008. With $4.27 billion in total assets on June 30, 2026, it ranks No. 324 of 4,232 U.S. banks by total assets. The Diamond Bar Branch at 1139 S Diamond Bar Blvd dates to 2004 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
Diamond Bar Branch1139 S Diamond Bar Blvd, 91765
U.S. Bank Bank · 1
U.S. Bank has 1 branch in Diamond Bar, 563 across California 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. The Diamond Bar Branch at 1175 Grand Ave dates to 1994 in FDIC branch records. It opens on Saturday.
-
Diamond Bar Branch1175 Grand Ave, 91765
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
Wells Fargo Bank · 1
Wells Fargo has 1 branch in Diamond Bar, 769 across California and 4,161 nationwide. FDIC records list its main office in Sioux Falls, SD and show it operating since 1870. With $1.91 trillion in total assets on June 30, 2026, it ranks No. 4 of 4,232 U.S. banks by total assets. The Diamond Bar Town Center Branch at 1150 S Diamond Bar Blvd dates to 1995 in FDIC branch records. Its published hours do not list Saturday.
-
Diamond Bar Town Center Branch1150 S Diamond Bar Blvd, 91765
All hours
Mon to Fri 9 am to 5 pm; Sat to Sun not published
Hours: Wells Fargo branch locator (All The Places), checked Oct 10, 2026
Zions Bancorporation Bank · 1
Zions Bancorporation has 1 branch in Diamond Bar, 78 across California and 413 nationwide. FDIC records list its main office in Salt Lake City, UT and show it operating since 1873. With $89.04 billion in total assets on June 30, 2026, it ranks No. 35 of 4,232 U.S. banks by total assets. The Diamond Bar Branch at 1200 S Diamond Bar Blvd dates to 1985 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
-
Diamond Bar Branch1200 S Diamond Bar Blvd, 91765
Join a credit union in Diamond Bar
1 credit union has 1 office here: Certified 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 Diamond Bar page has every office in the state's directory.
Banking in Diamond Bar: the local picture
Short answer: 12 banks run 13 branches in Diamond Bar 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 12 banks, 0 have their main office in Diamond Bar, 6 elsewhere in California and 6 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 Chase's office at 1100 S Diamond Bar Blvd, dating to 1919; the newest is Citibank's at 1188 S Diamond Bar Blvd, from 2023.
The only credit union with an office here is Certified Credit Union.
Of the 6 locations with published hours. 4 open on Saturday. 8 locations have no published hours in these sources.
Banks open on Saturday in Diamond Bar
Short answer: 4 of the 6 Diamond Bar locations with published hours open on Saturday, run by 3 institutions.
- Chase: 2 of 2 branches (1100 S Diamond Bar Blvd: Saturday 9 am to 2 pm, and 1 more)
- Bank of America: 1 of 1 branch (1196 S Diamond Bar Blvd: Saturday 9 am to 4 pm)
- U.S. Bank: 1 of 1 branch (1175 Grand Ave: Saturday 9 am to 1 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; 8 of the 14 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 Diamond Bar, and where the nearest one is if they do not.
Short answer: In Diamond Bar: Chase (2), Wells Fargo (1), Bank of America (1), U.S. Bank (1). No branches in Diamond Bar: PNC Bank (nearest in Ontario, 10 mi), Truist, Fifth Third Bank (nearest in Chino Hills, 5 mi), Huntington, Regions Bank, TD Bank, BMO (nearest in Rowland Heights, 4 mi).
| Bank | In Diamond Bar | Nearest branch if none here |
|---|---|---|
| Chase | 2 branches | here |
| Wells Fargo | 1 branch | here |
| Bank of America | 1 branch | here |
| U.S. Bank | 1 branch | here |
| PNC Bank | None | Ontario, 10 miles away |
| Truist | None | none in California |
| Fifth Third Bank | None | Chino Hills, 5 miles away |
| Huntington | None | none in California |
| Regions Bank | None | none in California |
| TD Bank | None | none in California |
| BMO | None | Rowland Heights, 4 miles away |
Branch counts from FDIC BankFind as of September 5, 2026. Distances are straight-line miles from the center of Diamond Bar to the nearest branch in California.
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 Diamond Bar residents like anyone else.
Banks near Diamond Bar
Nearby cities with at least two banks, by straight-line distance. Counts from FDIC BankFind.
Short answer: The closest towns with more choice are Walnut (3 miles) and Rowland Heights (5 miles). City Of Industry, 6 miles away, has the most banks nearby: 18.
| City | Distance | Banks | Branches |
|---|---|---|---|
| Banks in Walnut, CA | 3 mi | 6 | 6 |
| Banks in Rowland Heights, CA | 5 mi | 15 | 16 |
| Banks in Chino Hills, CA | 5 mi | 11 | 13 |
| Banks in La Puente, CA | 6 mi | 2 | 2 |
| Banks in Pomona, CA | 6 mi | 5 | 5 |
| Banks in City Of Industry, CA | 6 mi | 18 | 23 |
| Banks in Brea, CA | 7 mi | 12 | 16 |
| Banks in West Covina, CA | 7 mi | 8 | 14 |
Bank branch openings and closings in Diamond Bar
FDIC branch records, between September 5, 2025 and September 5, 2026.
Short answer: FDIC branch records show no bank branch openings in Diamond Bar between September 5, 2025 and September 5, 2026. Closings and relocations are not tracked by the sources this page uses yet.
Largest banks in Diamond Bar by total assets
Ranked by each bank's total assets on its FDIC balance sheet, which covers the whole bank, not only its Diamond Bar offices.
Short answer: Chase is the largest bank with offices in Diamond Bar, 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 | 2 | Columbus, OH |
| Bank of America | $2.65 trillion | No. 2 | 1 | Charlotte, NC |
| Citibank | $1.98 trillion | No. 3 | 1 | Sioux Falls, SD |
| Wells Fargo | $1.91 trillion | No. 4 | 1 | Sioux Falls, SD |
| U.S. Bank | $705.55 billion | No. 6 | 1 | Cincinnati, OH |
| Zions Bancorporation | $89.04 billion | No. 35 | 1 | Salt Lake City, UT |
| East West Bank | $84.32 billion | No. 37 | 1 | Pasadena, CA |
| Cathay Bank | $24.64 billion | No. 88 | 1 | Los Angeles, CA |
| Bank of Hope | $18.99 billion | No. 110 | 1 | Los Angeles, CA |
| Preferred Bank | $7.73 billion | No. 203 | 1 | Los Angeles, CA |
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 Diamond Bar: FAQ
How many banks are in Diamond Bar, CA?
Diamond Bar has 12 banks with 13 branches and 1 credit union with 1 office, according to FDIC data as of September 5, 2026 and NCUA data as of March 31, 2026.
Which bank has the most branches in Diamond Bar?
Chase, with 2. Bank of America has 1 and Citibank has 1.
Is there a Chase in Diamond Bar, CA?
Yes. FDIC data lists 2 Chase branches in Diamond Bar as of September 5, 2026. Its branches are listed under Chase above, with the address and directions for each.
Is there a Bank of America in Diamond Bar, CA?
Yes. FDIC data lists 1 Bank of America branch in Diamond Bar as of September 5, 2026. The address and directions are under Bank of America above.
Is there a Citibank in Diamond Bar, CA?
Yes. FDIC data lists 1 Citibank branch in Diamond Bar as of September 5, 2026. The address and directions are under Citibank above.
Is there a PNC Bank in Diamond Bar, CA?
No. FDIC data lists no PNC Bank branch in Diamond Bar as of September 5, 2026. The nearest is in Ontario, about 10 miles away in a straight line.
Which banks in Diamond Bar are open on Saturday?
Chase, Bank of America and U.S. Bank publish Saturday hours for one or more Diamond Bar locations. The Saturday section above lists each one with its hours. 8 of the 14 locations here do not publish hours in the sources this page uses; call ahead.
What is the oldest bank in Diamond Bar?
Citibank has the longest record among banks with a branch here: the FDIC shows it operating since 1812.
Which credit unions can I join in Diamond Bar?
Certified Credit Union has an office in Diamond Bar. Check each credit union's membership rules before you apply.
Did any bank branches open or close in Diamond Bar 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 Diamond Bar?
Nearby cities with more banks include Walnut, Rowland Heights, Chino Hills. Walnut is 3 miles away with 6 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 1 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 (5 of 13 branches: Bank of America, Chase, U.S. Bank, Wells Fargo) | 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