US Bank Directory
Banks in Oconomowoc, WI
8 FDIC-insured banks operate 13 offices in Oconomowoc, Wisconsin, and 3 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: Oconomowoc
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: 11 banks and credit unions operate 16 locations in Oconomowoc, 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 Oconomowoc
Sorted by number of local branches. Each branch shows where its hours and phone number come from.
Short answer: Bank Five Nine has the most locations in Oconomowoc, with 4. It is followed by Associated Bank (2), Ixonia Bank (2). 5 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.
Bank Five Nine Bank · 4
Bank Five Nine has 4 branches in Oconomowoc, 19 across Wisconsin and 19 nationwide. FDIC records list its main office in Oconomowoc, WI and show it operating since 1859. With $2.53 billion in total assets on June 30, 2026, it ranks No. 500 of 4,232 U.S. banks by total assets. In FDIC branch records, its longest-running Oconomowoc location is its main office at 155 W Wisconsin Ave, dating to 1859; the newest, at 1300 N Summit Ave, to 2005. It does not publish hours in the sources this page uses; check its site before you go.
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Main Office main office155 W Wisconsin Ave, 53066
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Summit Avenue Branch1300 N Summit Ave, 53066
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Shorehaven Branch1306 W Wisconsin Ave, 53066
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Brown Street BranchW359n5900 Brown St, 53066
Associated Bank Bank · 2
Associated Bank has 2 branches in Oconomowoc, 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. In FDIC branch records, its longest-running Oconomowoc location is the Oconomowoc-Okauchee Branch at N49 W35876 Wisconsin Avenue, dating to 1983; the newest, at 1456 Summit Ave, to 2010. It opens on Saturday.
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1456 Summit Avenue Branch1456 Summit Ave, 53066
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
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Oconomowoc-Okauchee BranchN49 W35876 Wisconsin Avenue, 53066
Ixonia Bank Bank · 2
Ixonia Bank has 2 branches in Oconomowoc, 7 across Wisconsin and 7 nationwide. FDIC records list its main office in Ixonia, WI and show it operating since 1918. With $1.08 billion in total assets on June 30, 2026, it ranks No. 982 of 4,232 U.S. banks by total assets. In FDIC branch records, its longest-running Oconomowoc location is the Oconomowoc Branch at 1223 Summit Ave, dating to 1994; the newest, at W359n5002 Brown St, to 2018. It does not publish hours in the sources this page uses; check its site before you go.
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Oconomowoc Branch1223 Summit Ave, 53066
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Ixonia Bank-Lakes Plaza BranchW359n5002 Brown St, 53066
BMO Bank · 1
BMO has 1 branch in Oconomowoc, 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 Oconomowoc Office at 1433 Pabst Farms Cir dates to 1939 in FDIC branch records. It opens on Saturday.
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Oconomowoc Office1433 Pabst Farms Cir, 53066
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 Oconomowoc, 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 Oconomowoc Branch at 138 E Wisconsin Ave dates to 1932 in FDIC branch records. It opens on Saturday.
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Oconomowoc Branch138 E Wisconsin Ave, 53066
All hours
Mon to Fri 9 am to 5 pm; Sat 9 am to 1 pm; Sun not published
Hours: Chase branch locator (All The Places), checked Oct 10, 2026
Landmark Credit Union Credit union · 1
Landmark Credit Union has 1 office in Oconomowoc, 37 across Wisconsin. It is based in Brookfield, WI and $7.73 billion in assets on March 31, 2026, according to its NCUA call report. It does not publish hours in the sources this page uses; check its site before you go.
Who can join: see the credit union's site.
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Oconomowoc1391 Olympia Fields Drive, 53066
Summit Credit Union Credit union · 1
Summit Credit Union has 1 office in Oconomowoc, 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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Oconomowoc1300 Oconomowoc Pkwy, 53066
All hours
Mon to Thu 9 am to 5 pm; Fri 9 am to 6 pm; Sat 9 am to 12 pm; Sun not published
Hours: NCUA, March 31, 2026
U.S. Bank Bank · 1
U.S. Bank has 1 branch in Oconomowoc, 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 Oconomowoc Branch at 1674 Old Schoolhouse Rd dates to 1946 in FDIC branch records. It opens on Saturday.
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Oconomowoc Branch1674 Old Schoolhouse Rd, 53066
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 Oconomowoc, 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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Oconomowoc1314 Penny Lane, 53066
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
WaterStone Bank, SSB Bank · 1
WaterStone Bank, SSB has 1 branch in Oconomowoc, 16 across Wisconsin and 16 nationwide. FDIC records list its main office in Wauwatosa, WI and show it operating since 1921. With $2.25 billion in total assets on June 30, 2026, it ranks No. 551 of 4,232 U.S. banks by total assets. The Oconomowoc Branch at 1239-45 Oconomowoc Drive dates to 2003 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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Oconomowoc Branch1239-45 Oconomowoc Drive, 53066
Waukesha State Bank Bank · 1
Waukesha State Bank has 1 branch in Oconomowoc, 15 across Wisconsin and 15 nationwide. FDIC records list its main office in Waukesha, WI and show it operating since 1944. With $1.62 billion in total assets on June 30, 2026, it ranks No. 692 of 4,232 U.S. banks by total assets. The Oconomowoc Branch at 1227 Corporate Center Dr dates to 2004 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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Oconomowoc Branch1227 Corporate Center Dr, 53066
Join a credit union in Oconomowoc
3 credit unions have 3 offices here: Summit Credit Union, Landmark 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 Oconomowoc page has every office in the state's directory.
Banking in Oconomowoc: the local picture
Short answer: 8 banks run 13 branches in Oconomowoc 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 8 banks, 1 has its main office in Oconomowoc, 4 elsewhere in Wisconsin and 3 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 Five Nine's office at 155 W Wisconsin Ave, dating to 1859; the newest is Ixonia Bank's at W359n5002 Brown St, from 2018.
3 credit unions have 3 offices in Oconomowoc, according to the NCUA. Who can join each one is on the credit unions page.
Of the 6 locations with published hours. 6 open on Saturday. 10 locations have no published hours in these sources.
Banks and credit unions open on Saturday in Oconomowoc
Short answer: 6 of the 6 Oconomowoc locations with published hours open on Saturday, run by 6 institutions.
- Associated Bank: 1 of 2 branches (1456 Summit Ave: Saturday 9 am to 12 pm)
- Chase: 1 of 1 branch (138 E Wisconsin Ave: Saturday 9 am to 1 pm)
- U.S. Bank: 1 of 1 branch (1674 Old Schoolhouse Rd: Saturday 9 am to 12 pm)
- BMO: 1 of 1 branch (1433 Pabst Farms Cir: Saturday 9 am to 12 pm)
- Summit Credit Union: 1 of 1 office (1300 Oconomowoc Pkwy: Saturday 9 am to 12 pm)
- University of Wisconsin Credit Union: 1 of 1 office (1314 Penny Lane: 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; 10 of the 16 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 Oconomowoc, and where the nearest one is if they do not.
Short answer: In Oconomowoc: Chase (1), U.S. Bank (1), BMO (1). No branches in Oconomowoc: Wells Fargo (nearest in Pewaukee, 13 mi), Bank of America, PNC Bank (nearest in Pewaukee, 13 mi), Truist, Fifth Third Bank, Huntington (nearest in Elm Grove, 21 mi), Regions Bank, TD Bank.
| Bank | In Oconomowoc | Nearest branch if none here |
|---|---|---|
| Chase | 1 branch | here |
| U.S. Bank | 1 branch | here |
| BMO | 1 branch | here |
| Wells Fargo | None | Pewaukee, 13 miles away |
| Bank of America | None | none in Wisconsin |
| PNC Bank | None | Pewaukee, 13 miles away |
| Truist | None | none in Wisconsin |
| Fifth Third Bank | None | none in Wisconsin |
| Huntington | None | Elm Grove, 21 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 Oconomowoc 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 Oconomowoc residents like anyone else.
Banks near Oconomowoc
Nearby cities with at least two banks, by straight-line distance. Counts from FDIC BankFind.
Short answer: The closest towns with more choice are Delafield (6 miles) and Hartland (6 miles). Waukesha, 14 miles away, has the most banks nearby: 16.
| City | Distance | Banks | Branches |
|---|---|---|---|
| Banks in Delafield, WI | 6 mi | 7 | 7 |
| Banks in Hartland, WI | 6 mi | 8 | 8 |
| Banks in Pewaukee, WI | 12 mi | 10 | 12 |
| Banks in Sussex, WI | 12 mi | 5 | 5 |
| Banks in Waukesha, WI | 14 mi | 16 | 22 |
| Banks in Watertown, WI | 14 mi | 6 | 7 |
| Banks in Johnson Creek, WI | 15 mi | 2 | 2 |
| Banks in Hartford, WI | 16 mi | 5 | 5 |
Bank branch openings and closings in Oconomowoc
FDIC branch records, between September 5, 2025 and September 5, 2026.
Short answer: FDIC branch records show no bank branch openings in Oconomowoc 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 Oconomowoc
Short answer: 1 institution has its main office in Oconomowoc: Bank Five Nine.
| Institution | Type | Total assets, June 30, 2026 | Offices here |
|---|---|---|---|
| Bank Five Nine | Bank | $2.53 billion | 4 |
Banks: FDIC BankFind (community-bank flag and assets). Credit unions: NCUA call report.
Largest banks in Oconomowoc by total assets
Ranked by each bank's total assets on its FDIC balance sheet, which covers the whole bank, not only its Oconomowoc offices.
Short answer: Chase is the largest bank with offices in Oconomowoc, 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 8 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 |
| Associated Bank | $51.76 billion | No. 49 | 2 | Green Bay, WI |
| Bank Five Nine | $2.53 billion | No. 500 | 4 | Oconomowoc, WI |
| WaterStone Bank, SSB | $2.25 billion | No. 551 | 1 | Wauwatosa, WI |
| Waukesha State Bank | $1.62 billion | No. 692 | 1 | Waukesha, WI |
| Ixonia Bank | $1.08 billion | No. 982 | 2 | Ixonia, 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 Oconomowoc: FAQ
How many banks are in Oconomowoc, WI?
Oconomowoc has 8 banks with 13 branches and 3 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 Oconomowoc?
Bank Five Nine, with 4. Associated Bank has 2 and Ixonia Bank has 2.
Is there a Bank Five Nine in Oconomowoc, WI?
Yes. FDIC data lists 4 Bank Five Nine branches in Oconomowoc as of September 5, 2026, the main office at 155 W Wisconsin Ave. Its branches are listed under Bank Five Nine above, with the address and directions for each.
Is there a Associated Bank in Oconomowoc, WI?
Yes. FDIC data lists 2 Associated Bank branches in Oconomowoc as of September 5, 2026. Its branches are listed under Associated Bank above, with the address and directions for each.
Is there a Ixonia Bank in Oconomowoc, WI?
Yes. FDIC data lists 2 Ixonia Bank branches in Oconomowoc as of September 5, 2026. Its branches are listed under Ixonia Bank above, with the address and directions for each.
Is there a Wells Fargo in Oconomowoc, WI?
No. FDIC data lists no Wells Fargo branch in Oconomowoc as of September 5, 2026. The nearest is in Pewaukee, about 13 miles away in a straight line.
Which banks in Oconomowoc are open on Saturday?
Associated Bank, Chase, U.S. Bank and BMO and 2 more publish Saturday hours for one or more Oconomowoc locations. The Saturday section above lists each one with its hours. 10 of the 16 locations here do not publish hours in the sources this page uses; call ahead.
Which banks are headquartered in Oconomowoc?
Bank Five Nine has its main office in Oconomowoc, according to the FDIC.
What is the oldest bank in Oconomowoc?
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 Oconomowoc?
Summit Credit Union, Landmark Credit Union and University of Wisconsin Credit Union have offices in Oconomowoc. Check each credit union's membership rules before you apply.
Did any bank branches open or close in Oconomowoc 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 Oconomowoc?
Nearby cities with more banks include Delafield, Hartland, Pewaukee. Delafield is 6 miles away with 7 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 (4 of 13 branches: Associated Bank, BMO, Chase, 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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