US Bank Directory
Banks in Marathon, FL
5 FDIC-insured banks operate 6 offices in Marathon, Florida, 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: Marathon
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: 6 banks and credit unions operate 7 locations in Marathon, according to the FDIC and the NCUA. 7 of them have coordinates on record and are on the map. 4 publish opening hours.
Branches: FDIC, NCUA. Streets: loading.
7 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 Marathon
Sorted by number of local branches. Each branch shows where its hours and phone number come from.
Short answer: Centennial Bank has the most locations in Marathon, with 2. The other 4 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.
Centennial Bank Bank · 2
Centennial Bank has 2 branches in Marathon, 88 across Florida and 243 nationwide. FDIC records list its main office in Conway, AR and show it operating since 1903. With $24.55 billion in total assets on June 30, 2026, it ranks No. 89 of 4,232 U.S. banks by total assets. In FDIC branch records, its longest-running Marathon location is the Marathon Branch at 11290 Overseas Hwy, dating to 1995; the newest, at 4594 Overseas Hwy, to 2000. It does not publish hours in the sources this page uses; check its site before you go.
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Marathon Branch11290 Overseas Hwy, 33050
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Midtown Office4594 Overseas Hwy, 33050
Bank of America Bank · 1
Bank of America has 1 branch in Marathon, 414 across Florida 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 Marathon Branch at 5401 Overseas Hwy dates to 1956 in FDIC branch records. Its published hours do not list Saturday.
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Marathon Branch5401 Overseas Hwy, 33050
All hours
Mon closed; Tue to Fri 9 am to 4 pm; Sat to Sun closed
Hours: Bank of America branch locator (All The Places), checked Oct 10, 2026
First Horizon Bank · 1
First Horizon has 1 branch in Marathon, 77 across Florida and 416 nationwide. FDIC records list its main office in Memphis, TN and show it operating since 1864. With $84.12 billion in total assets on June 30, 2026, it ranks No. 38 of 4,232 U.S. banks by total assets. The Marathon Branch at 5601 Overseas Hwy dates to 2002 in FDIC branch records. Its published hours do not list Saturday.
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Marathon Branch5601 Overseas Hwy, 33050
All hours
Mon to Thu 9 am to 4 pm; Fri 9 am to 5 pm; Sat to Sun not published
Hours: First Horizon branch locator (All The Places), checked Oct 10, 2026
First State Bank Bank · 1
First State Bank has 1 branch in Marathon, 9 across Florida and 9 nationwide. FDIC records list its main office in Key West, FL and show it operating since 1955. With $1.18 billion in total assets on June 30, 2026, it ranks No. 905 of 4,232 U.S. banks by total assets. The Marathon Branch at 6900 Overseas Hwy dates to 2000 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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Marathon Branch6900 Overseas Hwy, 33050
Keys Credit Union Credit union · 1
Keys Credit Union has 1 office in Marathon, 6 across Florida. It is based in Key West, FL and $257.9 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.
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Marathon In Town5050 Overseas Hwy, 33050
All hours
Mon to Thu 9 am to 5 pm; Fri 9 am to 6 pm; Sat to Sun not published
Hours: NCUA, March 31, 2026
Truist Bank · 1
Truist has 1 branch in Marathon, 441 across Florida and 1,931 nationwide. FDIC records list its main office in Charlotte, NC and show it operating since 1872. With $548.35 billion in total assets on June 30, 2026, it ranks No. 9 of 4,232 U.S. banks by total assets. The Marathon Branch at 6090 Overseas Hwy dates to 1988 in FDIC branch records. Its published hours do not list Saturday.
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Marathon Branch6090 Overseas Hwy, 33050
All hours
Mon to Thu 9 am to 5 pm; Fri 9 am to 6 pm; Sat to Sun closed
Hours: Truist branch locator (All The Places), checked Oct 10, 2026
Join a credit union in Marathon
1 credit union has 1 office here: Keys 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 Marathon page has every office in the state's directory.
Banking in Marathon: the local picture
Short answer: 5 banks run 6 branches in Marathon 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 5 banks, 0 have their main office in Marathon, 1 elsewhere in Florida and 4 out of state, according to the FDIC.
The bank with the longest record here is First Horizon, operating since 1864 according to the FDIC. In FDIC branch records, the longest-running branch is Bank of America's office at 5401 Overseas Hwy, dating to 1956; the newest is First Horizon's at 5601 Overseas Hwy, from 2002.
The only credit union with an office here is Keys Credit Union.
Of the 4 locations with published hours. None open on Saturday. 3 locations have no published hours in these sources.
Saturday hours in Marathon
Short answer: None of the 4 Marathon locations with published hours lists Saturday hours. 3 locations do not publish hours in these sources; call ahead.
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; 3 of the 7 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 Marathon, and where the nearest one is if they do not.
Short answer: In Marathon: Bank of America (1), Truist (1). No branches in Marathon: Chase (nearest in Florida City, 63 mi), Wells Fargo (nearest in Key West, 45 mi), PNC Bank (nearest in Miami, 74 mi), U.S. Bank (nearest in Naples, 115 mi), Fifth Third Bank (nearest in Marco Island, 95 mi), Huntington (nearest in Naples, 115 mi), Regions Bank (nearest in Homestead, 66 mi), TD Bank (nearest in Homestead, 65 mi), BMO (nearest in Marco Island, 95 mi).
| Bank | In Marathon | Nearest branch if none here |
|---|---|---|
| Bank of America | 1 branch | here |
| Truist | 1 branch | here |
| Chase | None | Florida City, 63 miles away |
| Wells Fargo | None | Key West, 45 miles away |
| PNC Bank | None | Miami, 74 miles away |
| U.S. Bank | None | Naples, 115 miles away |
| Fifth Third Bank | None | Marco Island, 95 miles away |
| Huntington | None | Naples, 115 miles away |
| Regions Bank | None | Homestead, 66 miles away |
| TD Bank | None | Homestead, 65 miles away |
| BMO | None | Marco Island, 95 miles away |
Branch counts from FDIC BankFind as of September 5, 2026. Distances are straight-line miles from the center of Marathon to the nearest branch in Florida.
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 Marathon residents like anyone else.
Banks near Marathon
Nearby cities with at least two banks, by straight-line distance. Counts from FDIC BankFind.
Short answer: The closest towns with more choice are Big Pine Key (18 miles) and Islamorada (30 miles). Homestead, 66 miles away, has the most banks nearby: 8.
| City | Distance | Banks | Branches |
|---|---|---|---|
| Banks in Big Pine Key, FL | 18 mi | 3 | 3 |
| Banks in Islamorada, FL | 30 mi | 3 | 3 |
| Banks in Tavernier, FL | 40 mi | 2 | 2 |
| Banks in Key West, FL | 46 mi | 7 | 11 |
| Banks in Key Largo, FL | 50 mi | 6 | 10 |
| Banks in Homestead, FL | 66 mi | 8 | 13 |
| Banks in Cutler Bay, FL | 74 mi | 3 | 3 |
| Banks in Palmetto Bay, FL | 78 mi | 3 | 3 |
Bank branch openings and closings in Marathon
FDIC branch records, between September 5, 2025 and September 5, 2026.
Short answer: FDIC branch records show no bank branch openings in Marathon between September 5, 2025 and September 5, 2026. Closings and relocations are not tracked by the sources this page uses yet.
Largest banks in Marathon by total assets
Ranked by each bank's total assets on its FDIC balance sheet, which covers the whole bank, not only its Marathon offices.
Short answer: Bank of America is the largest bank with offices in Marathon, with $2.65 trillion in total assets on June 30, 2026, No. 2 among U.S. banks by total assets. Truist is second with $548.35 billion. Local deposit shares will follow once the FDIC Summary of Deposits is imported.
| Bank | Total assets | Rank | Offices here | Main office |
|---|---|---|---|---|
| Bank of America | $2.65 trillion | No. 2 | 1 | Charlotte, NC |
| Truist | $548.35 billion | No. 9 | 1 | Charlotte, NC |
| First Horizon | $84.12 billion | No. 38 | 1 | Memphis, TN |
| Centennial Bank | $24.55 billion | No. 89 | 2 | Conway, AR |
| First State Bank | $1.18 billion | No. 905 | 1 | Key West, FL |
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 Marathon: FAQ
How many banks are in Marathon, FL?
Marathon has 5 banks with 6 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 Marathon?
Centennial Bank, with 2. Bank of America has 1 and Truist has 1.
Is there a Centennial Bank in Marathon, FL?
Yes. FDIC data lists 2 Centennial Bank branches in Marathon as of September 5, 2026. Its branches are listed under Centennial Bank above, with the address and directions for each.
Is there a Bank of America in Marathon, FL?
Yes. FDIC data lists 1 Bank of America branch in Marathon as of September 5, 2026. The address and directions are under Bank of America above.
Is there a Truist in Marathon, FL?
Yes. FDIC data lists 1 Truist branch in Marathon as of September 5, 2026. The address and directions are under Truist above.
Is there a Chase in Marathon, FL?
No. FDIC data lists no Chase branch in Marathon as of September 5, 2026. The nearest is in Florida City, about 63 miles away in a straight line.
Which banks in Marathon are open on Saturday?
None of the 4 locations with published hours lists Saturday hours. 3 locations do not publish hours in our sources; call ahead.
What is the oldest bank in Marathon?
First Horizon has the longest record among banks with a branch here: the FDIC shows it operating since 1864.
Which credit unions can I join in Marathon?
Keys Credit Union has an office in Marathon. Check each credit union's membership rules before you apply.
Did any bank branches open or close in Marathon 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 Marathon?
Nearby cities with more banks include Big Pine Key, Islamorada, Tavernier. Big Pine Key is 18 miles away with 3 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 (3 of 6 branches: Bank of America, First Horizon, Truist) | 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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