US Bank Directory
Banks in Mamou, LA
3 FDIC-insured banks operate 3 offices in Mamou, Louisiana.
Source: FDIC BankFind, data as of September 5, 2026.
Bank branch map: Mamou
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: 3 banks and credit unions operate 3 locations in Mamou, according to the FDIC. 3 of them have coordinates on record and are on the map. ATMs and opening hours are not in the sources this page uses yet; each marker links to directions.
Branches: FDIC, NCUA. Streets: loading.
3 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 Mamou
Sorted by number of local branches. Each branch shows where its hours and phone number come from.
Short answer: Investar Bank, Sabine State Bank and JD Bank have the most locations in Mamou, with 1 each. 3 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.
Investar Bank Bank · 1
Investar Bank has 1 branch in Mamou, 21 across Louisiana and 38 nationwide. FDIC records list its main office in Baton Rouge, LA and show it operating since 2006. With $3.85 billion in total assets on June 30, 2026, it ranks No. 347 of 4,232 U.S. banks by total assets. The Mamou Branch at 601 Poinciana Ave dates to 1977 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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Mamou Branch601 Poinciana Ave, 70554
JD Bank Bank · 1
JD Bank has 1 branch in Mamou, 25 across Louisiana and 25 nationwide. FDIC records list its main office in Jennings, LA and show it operating since 1947. With $1.26 billion in total assets on June 30, 2026, it ranks No. 865 of 4,232 U.S. banks by total assets. The Mamou Branch at 609 Main St dates to 1950 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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Mamou Branch609 Main St, 70554
Sabine State Bank Bank · 1
Sabine State Bank has 1 branch in Mamou, 46 across Louisiana and 51 nationwide. FDIC records list its main office in Many, LA and show it operating since 1902. With $1.35 billion in total assets on June 30, 2026, it ranks No. 821 of 4,232 U.S. banks by total assets. The Mamou Branch at 516 Main St dates to 1983 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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Mamou Branch516 Main St, 70554
Banking in Mamou: the local picture
Short answer: 3 banks run 3 branches in Mamou 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 3 banks, 0 have their main office in Mamou, 3 elsewhere in Louisiana, according to the FDIC.
The bank with the longest record here is Sabine State Bank, operating since 1902 according to the FDIC. In FDIC branch records, the longest-running branch is JD Bank's office at 609 Main St, dating to 1950; the newest is Sabine State Bank's at 516 Main St, from 1983.
None of the 3 locations here publishes hours in the sources this page uses. Each branch links to the bank's own site.
Chase, Bank of America and other national banks
Which big national banks have branches in Mamou, and where the nearest one is if they do not.
Short answer: No branches in Mamou: Chase (nearest in Opelousas, 21 mi), Wells Fargo, Bank of America, PNC Bank, U.S. Bank, Truist, Fifth Third Bank, Huntington (nearest in Lafayette, 36 mi), Regions Bank (nearest in Lafayette, 37 mi), TD Bank, BMO.
| Bank | In Mamou | Nearest branch if none here |
|---|---|---|
| Chase | None | Opelousas, 21 miles away |
| Wells Fargo | None | none in Louisiana |
| Bank of America | None | none in Louisiana |
| PNC Bank | None | none in Louisiana |
| U.S. Bank | None | none in Louisiana |
| Truist | None | none in Louisiana |
| Fifth Third Bank | None | none in Louisiana |
| Huntington | None | Lafayette, 36 miles away |
| Regions Bank | None | Lafayette, 37 miles away |
| TD Bank | None | none in Louisiana |
| BMO | None | none in Louisiana |
Branch counts from FDIC BankFind as of September 5, 2026. Distances are straight-line miles from the center of Mamou to the nearest branch in Louisiana.
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 Mamou residents like anyone else.
Banks near Mamou
Nearby cities with at least two banks, by straight-line distance. Counts from FDIC BankFind.
Short answer: The closest towns with more choice are Ville Platte (9 miles) and Eunice (10 miles). Eunice, 10 miles away, has the most banks nearby: 9.
| City | Distance | Banks | Branches |
|---|---|---|---|
| Banks in Ville Platte, LA | 9 mi | 4 | 5 |
| Banks in Eunice, LA | 10 mi | 9 | 11 |
| Banks in Oakdale, LA | 19 mi | 2 | 2 |
| Banks in Church Point, LA | 20 mi | 3 | 4 |
| Banks in Opelousas, LA | 22 mi | 9 | 14 |
| Banks in Iota, LA | 22 mi | 2 | 2 |
| Banks in Bunkie, LA | 26 mi | 4 | 5 |
| Banks in Kinder, LA | 27 mi | 2 | 2 |
Bank branch openings and closings in Mamou
FDIC branch records, between September 5, 2025 and September 5, 2026.
Short answer: FDIC branch records show no bank branch openings in Mamou between September 5, 2025 and September 5, 2026. Closings and relocations are not tracked by the sources this page uses yet.
Largest banks in Mamou by total assets
Ranked by each bank's total assets on its FDIC balance sheet, which covers the whole bank, not only its Mamou offices.
Short answer: Investar Bank is the largest bank with offices in Mamou, with $3.85 billion in total assets on June 30, 2026, No. 347 among U.S. banks by total assets. Sabine State Bank is second with $1.35 billion. Local deposit shares will follow once the FDIC Summary of Deposits is imported.
| Bank | Total assets | Rank | Offices here | Main office |
|---|---|---|---|---|
| Investar Bank | $3.85 billion | No. 347 | 1 | Baton Rouge, LA |
| Sabine State Bank | $1.35 billion | No. 821 | 1 | Many, LA |
| JD Bank | $1.26 billion | No. 865 | 1 | Jennings, LA |
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 Mamou: FAQ
How many banks are in Mamou, LA?
Mamou has 3 banks with 3 branches, according to FDIC data as of September 5, 2026.
Which bank has the most branches in Mamou?
Investar Bank, with 1. Sabine State Bank has 1 and JD Bank has 1.
Is there a Investar Bank in Mamou, LA?
Yes. FDIC data lists 1 Investar Bank branch in Mamou as of September 5, 2026. The address and directions are under Investar Bank above.
Is there a Sabine State Bank in Mamou, LA?
Yes. FDIC data lists 1 Sabine State Bank branch in Mamou as of September 5, 2026. The address and directions are under Sabine State Bank above.
Is there a JD Bank in Mamou, LA?
Yes. FDIC data lists 1 JD Bank branch in Mamou as of September 5, 2026. The address and directions are under JD Bank above.
Is there a Chase in Mamou, LA?
No. FDIC data lists no Chase branch in Mamou as of September 5, 2026. The nearest is in Opelousas, about 21 miles away in a straight line.
What is the oldest bank in Mamou?
Sabine State Bank has the longest record among banks with a branch here: the FDIC shows it operating since 1902.
Did any bank branches open or close in Mamou 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 Mamou?
Nearby cities with more banks include Ville Platte, Eunice, Oakdale. Ville Platte is 9 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 |
| 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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