US Bank Directory
Banks in Sun Prairie, WI
10 FDIC-insured banks operate 12 offices in Sun Prairie, Wisconsin, and 2 credit unions have 3 offices.
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: Sun Prairie
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: 12 banks and credit unions operate 15 locations in Sun Prairie, according to the FDIC and the NCUA. 15 of them have coordinates on record and are on the map. 6 publish opening hours.
Branches: FDIC, NCUA. Streets: loading.
15 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 Sun Prairie
Sorted by number of local branches. Each branch shows where its hours and phone number come from.
Short answer: Bank of Sun Prairie has the most locations in Sun Prairie, with 3. The other 9 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.
Bank of Sun Prairie Bank · 3
Bank of Sun Prairie has 3 branches in Sun Prairie, 8 across Wisconsin and 8 nationwide. FDIC records list its main office in Sun Prairie, WI and show it operating since 1903. With $841.2 million in total assets on June 30, 2026, it ranks No. 1,208 of 4,232 U.S. banks by total assets. In FDIC branch records, its longest-running Sun Prairie location is its main office at 228 E Main St, dating to 1903; the newest, at 2850 Ironwood Dr, to 2022. It does not publish hours in the sources this page uses; check its site before you go.
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Main Office main office228 E Main St, 53590
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Sun Prairie West High School Branch2850 Ironwood Dr, 53590
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Grand Avenue Office Branch695 S Grand Ave, 53590
Summit Credit Union Credit union · 2
Summit Credit Union has 2 officees in Sun Prairie, 57 across Wisconsin. It is based in Madison, WI and $8.30 billion in assets on March 31, 2026, according to its NCUA call report. It opens on Saturday.
Who can join: see the credit union's site.
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Sun Prairie West112 S Grand Ave, 53590
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Sun Prairie1333 W Main St, 53590
All hours
Mon to Fri 7:30 am to 5:30 pm; Sat 8:30 am to 1 pm; Sun not published
Hours: NCUA, March 31, 2026
Associated Bank Bank · 1
Associated Bank has 1 branch in Sun Prairie, 136 across Wisconsin and 218 nationwide. FDIC records list its main office in Green Bay, WI and show it operating since 1874. With $51.76 billion in total assets on June 30, 2026, it ranks No. 49 of 4,232 U.S. banks by total assets. The Sun Prairie Grand Avenue Branch at 658 S Grand Ave dates to 2009 in FDIC branch records. It opens on Saturday.
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Sun Prairie Grand Avenue Branch658 S Grand Ave, 53590
All hours
Mon to Fri 9 am to 5 pm; Sat 9 am to 12 pm; Sun closed
Hours: Associated Bank branch locator (All The Places), checked Oct 10, 2026
BMO Bank · 1
BMO has 1 branch in Sun Prairie, 145 across Wisconsin and 988 nationwide. FDIC records list its main office in Chicago, IL and show it operating since 1947. With $254.97 billion in total assets on June 30, 2026, it ranks No. 16 of 4,232 U.S. banks by total assets. The Sun Prairie Branch at 1140 W Main St dates to 1967 in FDIC branch records. It opens on Saturday.
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Sun Prairie Branch1140 W Main St, 53590
All hours
Mon to Fri 9 am to 5 pm; Sat 9 am to 12 pm; Sun not published
Hours: BMO branch locator (All The Places), checked Oct 10, 2026
Chase Bank · 1
Chase has 1 branch in Sun Prairie, 65 across Wisconsin 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 Sun Prairie Branch at 620 Spring St dates to 2020 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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Sun Prairie Branch620 Spring St, 53590
Johnson Bank Bank · 1
Johnson Bank has 1 branch in Sun Prairie, 32 across Wisconsin and 32 nationwide. FDIC records list its main office in Racine, WI and show it operating since 1970. With $7.07 billion in total assets on June 30, 2026, it ranks No. 219 of 4,232 U.S. banks by total assets. The Sun Prairie Branch at 186 S City Station Dr 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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Sun Prairie Branch186 S City Station Dr, 53590
Old National Bank · 1
Old National has 1 branch in Sun Prairie, 31 across Wisconsin and 361 nationwide. FDIC records list its main office in Evansville, IN and show it operating since 1907. With $73.86 billion in total assets on June 30, 2026, it ranks No. 39 of 4,232 U.S. banks by total assets. The Sun Prairie Branch at 1516 W Main St dates to 1918 in FDIC branch records. Its published hours do not list Saturday.
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Sun Prairie Branch1516 W Main St, 53590
All hours
Mon to Fri 9 am to 5 pm; Sat to Sun not published
Hours: Old National branch locator (All The Places), checked Oct 10, 2026
One Community Bank Bank · 1
One Community Bank has 1 branch in Sun Prairie, 20 across Wisconsin and 20 nationwide. FDIC records list its main office in Oregon, WI and show it operating since 1976. With $2.63 billion in total assets on June 30, 2026, it ranks No. 483 of 4,232 U.S. banks by total assets. The Sun Prairie Branch at 2580 Ironwood Dr dates to 2008 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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Sun Prairie Branch2580 Ironwood Dr, 53590
Starion Bank Bank · 1
Starion Bank has 1 branch in Sun Prairie, 3 across Wisconsin and 16 nationwide. FDIC records list its main office in Bismarck, ND and show it operating since 1993. With $2.10 billion in total assets on June 30, 2026, it ranks No. 585 of 4,232 U.S. banks by total assets. The Sun Prairie Branch at 350 S Grand Ave dates to 2013 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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Sun Prairie Branch350 S Grand Ave, 53590
The Park Bank Bank · 1
The Park Bank has 1 branch in Sun Prairie, 10 across Wisconsin and 10 nationwide. FDIC records list its main office in Madison, WI and show it operating since 1966. With $1.54 billion in total assets on June 30, 2026, it ranks No. 734 of 4,232 U.S. banks by total assets. The Sun Prairie Branch at 110 N Grand Ave dates to 2007 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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Sun Prairie Branch110 N Grand Ave, 53590
U.S. Bank Bank · 1
U.S. Bank has 1 branch in Sun Prairie, 90 across Wisconsin 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 Sun Prairie Madison Branch at 2311 Windsor St dates to 1993 in FDIC branch records. It opens on Saturday.
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Sun Prairie Madison Branch2311 Windsor St, 53590
All hours
Mon not published; Tue to Fri 9 am to 5 pm; Sat 9 am to 12 pm; Sun not published
Hours: U.S. Bank branch locator (All The Places), checked Oct 10, 2026
University of Wisconsin Credit Union Credit union · 1
University of Wisconsin Credit Union has 1 office in Sun Prairie, 42 across Wisconsin. It is based in Madison, WI and $6.60 billion in assets on March 31, 2026, according to its NCUA call report. It opens on Saturday.
Who can join: see the credit union's site.
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Sun Prairie250 S Grand Ave, 53590
All hours
Mon to Fri 9 am to 5:30 pm; Sat 9 am to 1 pm; Sun not published
Hours: NCUA, March 31, 2026
Join a credit union in Sun Prairie
2 credit unions have 3 offices here: Summit Credit Union and University of Wisconsin 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 Sun Prairie page has every office in the state's directory.
Banking in Sun Prairie: the local picture
Short answer: 10 banks run 12 branches in Sun Prairie 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 10 banks, 1 has its main office in Sun Prairie, 4 elsewhere in Wisconsin and 5 out of state, according to the FDIC.
The bank with the longest record here is Chase, operating since 1824 according to the FDIC. In FDIC branch records, the longest-running branch is Bank of Sun Prairie's office at 228 E Main St, dating to 1903; the newest is Johnson Bank's at 186 S City Station Dr, from 2025.
2 credit unions have 3 offices in Sun Prairie, according to the NCUA. Who can join each one is on the credit unions page.
Of the 6 locations with published hours. 5 open on Saturday. 9 locations have no published hours in these sources.
Banks and credit unions open on Saturday in Sun Prairie
Short answer: 5 of the 6 Sun Prairie locations with published hours open on Saturday, run by 5 institutions.
- U.S. Bank: 1 of 1 branch (2311 Windsor St: Saturday 9 am to 12 pm)
- BMO: 1 of 1 branch (1140 W Main St: Saturday 9 am to 12 pm)
- Associated Bank: 1 of 1 branch (658 S Grand Ave: Saturday 9 am to 12 pm)
- Summit Credit Union: 1 of 2 offices (1333 W Main St: Saturday 8:30 am to 1 pm)
- University of Wisconsin Credit Union: 1 of 1 office (250 S 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; 9 of the 15 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 Sun Prairie, and where the nearest one is if they do not.
Short answer: In Sun Prairie: Chase (1), U.S. Bank (1), BMO (1). No branches in Sun Prairie: Wells Fargo (nearest in Madison, 4 mi), Bank of America, PNC Bank (nearest in Pewaukee, 52 mi), Truist, Fifth Third Bank, Huntington (nearest in Elm Grove, 60 mi), Regions Bank, TD Bank.
| Bank | In Sun Prairie | Nearest branch if none here |
|---|---|---|
| Chase | 1 branch | here |
| U.S. Bank | 1 branch | here |
| BMO | 1 branch | here |
| Wells Fargo | None | Madison, 4 miles away |
| Bank of America | None | none in Wisconsin |
| PNC Bank | None | Pewaukee, 52 miles away |
| Truist | None | none in Wisconsin |
| Fifth Third Bank | None | none in Wisconsin |
| Huntington | None | Elm Grove, 60 miles away |
| Regions Bank | None | none in Wisconsin |
| TD Bank | None | none in Wisconsin |
Branch counts from FDIC BankFind as of September 5, 2026. Distances are straight-line miles from the center of Sun Prairie 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 Sun Prairie residents like anyone else.
Banks near Sun Prairie
Nearby cities with at least two banks, by straight-line distance. Counts from FDIC BankFind.
Short answer: The closest towns with more choice are Cottage Grove (7 miles) and Monona (9 miles). Madison, 11 miles away, has the most banks nearby: 20.
| City | Distance | Banks | Branches |
|---|---|---|---|
| Banks in Cottage Grove, WI | 7 mi | 4 | 4 |
| Banks in Monona, WI | 9 mi | 3 | 4 |
| Banks in Waunakee, WI | 10 mi | 6 | 6 |
| Banks in Madison, WI | 11 mi | 20 | 53 |
| Banks in Middleton, WI | 14 mi | 10 | 11 |
| Banks in Fitchburg, WI | 14 mi | 5 | 6 |
| Banks in Columbus, WI | 16 mi | 2 | 3 |
| Banks in Lodi, WI | 17 mi | 2 | 2 |
Bank branch openings and closings in Sun Prairie
FDIC branch records, between September 5, 2025 and September 5, 2026.
Short answer: FDIC branch records show 1 branch opening in Sun Prairie between September 5, 2025 and September 5, 2026.
| Date | Change | Bank | Address |
|---|---|---|---|
| Sep 8, 2025 | Opened | Johnson Bank | 186 S City Station Dr, 53590 |
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 Sun Prairie
Short answer: 1 institution has its main office in Sun Prairie: Bank of Sun Prairie.
| Institution | Type | Total assets, June 30, 2026 | Offices here |
|---|---|---|---|
| Bank of Sun Prairie | Bank | $841.2 million | 3 |
Banks: FDIC BankFind (community-bank flag and assets). Credit unions: NCUA call report.
Largest banks in Sun Prairie by total assets
Ranked by each bank's total assets on its FDIC balance sheet, which covers the whole bank, not only its Sun Prairie offices.
Short answer: Chase is the largest bank with offices in Sun Prairie, with $4.09 trillion in total assets on June 30, 2026, No. 1 among U.S. banks by total assets. U.S. Bank is second with $705.55 billion. 1 of the 10 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 |
| U.S. Bank | $705.55 billion | No. 6 | 1 | Cincinnati, OH |
| BMO | $254.97 billion | No. 16 | 1 | Chicago, IL |
| Old National | $73.86 billion | No. 39 | 1 | Evansville, IN |
| Associated Bank | $51.76 billion | No. 49 | 1 | Green Bay, WI |
| Johnson Bank | $7.07 billion | No. 219 | 1 | Racine, WI |
| One Community Bank | $2.63 billion | No. 483 | 1 | Oregon, WI |
| Starion Bank | $2.10 billion | No. 585 | 1 | Bismarck, ND |
| The Park Bank | $1.54 billion | No. 734 | 1 | Madison, WI |
| Bank of Sun Prairie | $841.2 million | No. 1,208 | 3 | Sun Prairie, 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 Sun Prairie: FAQ
How many banks are in Sun Prairie, WI?
Sun Prairie has 10 banks with 12 branches and 2 credit unions with 3 offices, according to FDIC data as of September 5, 2026 and NCUA data as of March 31, 2026.
Which bank has the most branches in Sun Prairie?
Bank of Sun Prairie, with 3. Chase has 1 and U.S. Bank has 1.
Is there a Chase in Sun Prairie, WI?
Yes. FDIC data lists 1 Chase branch in Sun Prairie as of September 5, 2026. The address and directions are under Chase above.
Is there a U.S. Bank in Sun Prairie, WI?
Yes. FDIC data lists 1 U.S. Bank branch in Sun Prairie as of September 5, 2026. The address and directions are under U.S. Bank above.
Is there a Wells Fargo in Sun Prairie, WI?
No. FDIC data lists no Wells Fargo branch in Sun Prairie as of September 5, 2026. The nearest is in Madison, about 4 miles away in a straight line.
Which banks in Sun Prairie are open on Saturday?
U.S. Bank, BMO, Associated Bank and Summit Credit Union and 1 more publish Saturday hours for one or more Sun Prairie locations. The Saturday section above lists each one with its hours. 9 of the 15 locations here do not publish hours in the sources this page uses; call ahead.
Which banks are headquartered in Sun Prairie?
Bank of Sun Prairie has its main office in Sun Prairie, according to the FDIC.
What is the oldest bank in Sun Prairie?
Chase has the longest record among banks with a branch here: the FDIC shows it operating since 1824.
Which credit unions can I join in Sun Prairie?
Summit Credit Union and University of Wisconsin Credit Union have offices in Sun Prairie. Check each credit union's membership rules before you apply.
Did any bank branches open or close in Sun Prairie 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 Sun Prairie?
Nearby cities with more banks include Cottage Grove, Monona, Waunakee. Cottage Grove is 7 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 |
| 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 3 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 (4 of 12 branches: Associated Bank, BMO, Old National, U.S. 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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