US Bank Directory
Banks in Waterloo, WI
1 FDIC-insured bank operates 1 office in Waterloo, Wisconsin, and 1 credit union has 2 offices.
Source: FDIC BankFind, data as of September 5, 2026; NCUA call report as of March 31, 2026.
Bank branch map: Waterloo
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: 2 banks and credit unions operate 3 locations in Waterloo, according to the FDIC and the NCUA. 3 of them have coordinates on record and are on the map. 2 publish opening hours.
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 and credit unions in Waterloo
Sorted by number of local branches. Each branch shows where its hours and phone number come from.
Short answer: Farmers & Merchants State Bank is the only bank with an office in Waterloo. Open any bank to see each address, today's hours where the bank publishes them and the phone number.
Avestar Credit Union Credit union · 2
Avestar Credit Union has 2 officees in Waterloo, 4 across Wisconsin. It is based in Waterloo, WI and $66.5 million in assets on March 31, 2026, according to its NCUA call report. 1 of its 2 Waterloo locations with published hours open on Saturday.
Who can join: see the credit union's site.
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Main Office main office125 W Madison St, 53594
All hours
Mon to Fri 9 am to 5 pm; Sat to Sun not published
Hours: NCUA, March 31, 2026
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Avestar Piggly Wiggly810 N Monroe St, 53594
All hours
Mon to Fri 10:30 am to 6:30 pm; Sat 9 am to 12 pm; Sun not published
Hours: NCUA, March 31, 2026
Farmers & Merchants State Bank Bank · 1
Farmers & Merchants State Bank has 1 branch in Waterloo, 3 across Wisconsin and 3 nationwide. FDIC records list its main office in Waterloo, WI and show it operating since 1897. With $245.6 million in total assets on June 30, 2026, it ranks No. 2,752 of 4,232 U.S. banks by total assets. Its main office at 210 W Madison St dates to 1897 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 office210 W Madison St, 53594
Join a credit union in Waterloo
1 credit union has 2 offices here: Avestar 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 Waterloo page has every office in the state's directory.
Banking in Waterloo: the local picture
Short answer: 1 bank runs 1 branch in Waterloo according to the FDIC. A population estimate for this place is not available from the Census Bureau, so branches per resident are not shown.
Farmers & Merchants State Bank has its main office in Waterloo, according to the FDIC.
The bank with the longest record here is Farmers & Merchants State Bank, operating since 1897 according to the FDIC.
The only credit union with an office here is Avestar Credit Union.
Of the 2 locations with published hours. 1 opens on Saturday. 1 location has no published hours in these sources.
Credit unions open on Saturday in Waterloo
Short answer: 1 of the 2 Waterloo locations with published hours opens on Saturday, run by 1 institution.
- Avestar Credit Union: 1 of 2 offices (810 N Monroe St: 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; 1 of the 3 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 Waterloo, and where the nearest one is if they do not.
Short answer: No branches in Waterloo: Chase (nearest in Sun Prairie, 14 mi), Wells Fargo (nearest in Madison, 16 mi), Bank of America, PNC Bank (nearest in Pewaukee, 39 mi), U.S. Bank (nearest in Sun Prairie, 13 mi), Truist, Fifth Third Bank, Huntington (nearest in Elm Grove, 47 mi), Regions Bank, TD Bank, BMO (nearest in Sun Prairie, 12 mi).
| Bank | In Waterloo | Nearest branch if none here |
|---|---|---|
| Chase | None | Sun Prairie, 14 miles away |
| Wells Fargo | None | Madison, 16 miles away |
| Bank of America | None | none in Wisconsin |
| PNC Bank | None | Pewaukee, 39 miles away |
| U.S. Bank | None | Sun Prairie, 13 miles away |
| Truist | None | none in Wisconsin |
| Fifth Third Bank | None | none in Wisconsin |
| Huntington | None | Elm Grove, 47 miles away |
| Regions Bank | None | none in Wisconsin |
| TD Bank | None | none in Wisconsin |
| BMO | None | Sun Prairie, 12 miles away |
Branch counts from FDIC BankFind as of September 5, 2026. Distances are straight-line miles from the center of Waterloo to the nearest branch in Wisconsin.
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 Waterloo residents like anyone else.
Banks near Waterloo
Nearby cities with at least two banks, by straight-line distance. Counts from FDIC BankFind.
Short answer: The closest towns with more choice are Lake Mills (8 miles) and Columbus (11 miles). Sun Prairie, 13 miles away, has the most banks nearby: 10.
| City | Distance | Banks | Branches |
|---|---|---|---|
| Banks in Lake Mills, WI | 8 mi | 3 | 4 |
| Banks in Columbus, WI | 11 mi | 2 | 3 |
| Banks in Cottage Grove, WI | 12 mi | 4 | 4 |
| Banks in Cambridge, WI | 12 mi | 2 | 2 |
| Banks in Sun Prairie, WI | 13 mi | 10 | 12 |
| Banks in Watertown, WI | 13 mi | 6 | 7 |
| Banks in Johnson Creek, WI | 13 mi | 2 | 2 |
| Banks in Jefferson, WI | 16 mi | 3 | 3 |
Bank branch openings and closings in Waterloo
FDIC branch records, between September 5, 2025 and September 5, 2026.
Short answer: FDIC branch records show no bank branch openings in Waterloo 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 Waterloo
Short answer: 2 institutions have their main office in Waterloo: Avestar Credit Union and Farmers & Merchants State Bank.
| Institution | Type | Total assets, March 31, 2026 | Offices here |
|---|---|---|---|
| Avestar Credit Union | Credit union | $66.5 million | 2 |
| Farmers & Merchants State Bank | Bank | $245.6 million | 1 |
Banks: FDIC BankFind (community-bank flag and assets). Credit unions: NCUA call report.
Largest banks in Waterloo by total assets
Ranked by each bank's total assets on its FDIC balance sheet, which covers the whole bank, not only its Waterloo offices.
Short answer: Farmers & Merchants State Bank is the largest bank with offices in Waterloo, with $245.6 million in total assets on June 30, 2026, No. 2,752 among U.S. banks by total assets. 1 of the 1 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 |
|---|---|---|---|---|
| Farmers & Merchants State Bank | $245.6 million | No. 2,752 | 1 | Waterloo, WI |
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 Waterloo: FAQ
How many banks are in Waterloo, WI?
Waterloo has 1 bank with 1 branch and 1 credit union with 2 offices, according to FDIC data as of September 5, 2026 and NCUA data as of March 31, 2026.
Is there a Farmers & Merchants State Bank in Waterloo, WI?
Yes. FDIC data lists 1 Farmers & Merchants State Bank branch in Waterloo as of September 5, 2026, the main office at 210 W Madison St. The address and directions are under Farmers & Merchants State Bank above.
Is there a Chase in Waterloo, WI?
No. FDIC data lists no Chase branch in Waterloo as of September 5, 2026. The nearest is in Sun Prairie, about 14 miles away in a straight line.
Which banks in Waterloo are open on Saturday?
Avestar Credit Union publishes Saturday hours for one or more Waterloo locations. The Saturday section above lists each one with its hours. 1 of the 3 locations here do not publish hours in the sources this page uses; call ahead.
Which banks are headquartered in Waterloo?
Avestar Credit Union and Farmers & Merchants State Bank have their main office in Waterloo, according to the FDIC and the NCUA.
What is the oldest bank in Waterloo?
Farmers & Merchants State Bank has the longest record among banks with a branch here: the FDIC shows it operating since 1897.
Which credit unions can I join in Waterloo?
Avestar Credit Union has an office in Waterloo. Check each credit union's membership rules before you apply.
Did any bank branches open or close in Waterloo 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 Waterloo?
Nearby cities with more banks include Lake Mills, Columbus, Cottage Grove. Lake Mills is 8 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 2 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 |
| 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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