Bank Branches › Wisconsin › Jefferson County
Banks in Jefferson County, Wisconsin
Jefferson County has 23 bank offices, 8 fewer than its peak of 31 in 2013 (−26%). They belong to 11 banks, led by PremierBank with 5.
23
offices, 2026
31
peak (2013)
17
no longer reported
$2.3B
deposits booked
Map
open (23)no longer reported (14 of 17 have map coordinates)
The county's passbook
Bank offices reporting on June 30Deposits booked at them (nominal dollars, own scale)
| Date | offices | Change | Deposits |
|---|---|---|---|
| Jun 30 1994 | 26 | $719M | |
| Jun 30 1995 | 27 | +1 | $738M |
| Jun 30 2000 | 28 | · | $874M |
| Jun 30 2005 | 29 | +1 | $925M |
| Jun 30 2010 | 30 | +1 | $1.1B |
| Jun 30 2013PEAK | 31 | +1 | $1.1B |
| Jun 30 2015 | 31 | · | $1.1B |
| Jun 30 2020 | 26 | · | $1.5B |
| Jun 30 2025 | 25 | −1 | $1.9B |
| Jun 30 2026NOW | 23 | −2 | $2.3B |
Open the full passbook — all 33 years ▾
| Date | offices | Change | Deposits |
|---|---|---|---|
| Jun 30 1994 | 26 | $719M | |
| Jun 30 1995 | 27 | +1 | $738M |
| Jun 30 1996 | 27 | · | $754M |
| Jun 30 1997 | 28 | +1 | $786M |
| Jun 30 1998 | 28 | · | $805M |
| Jun 30 1999 | 28 | · | $849M |
| Jun 30 2000 | 28 | · | $874M |
| Jun 30 2001 | 29 | +1 | $867M |
| Jun 30 2002 | 29 | · | $908M |
| Jun 30 2003 | 29 | · | $963M |
| Jun 30 2004 | 28 | −1 | $949M |
| Jun 30 2005 | 29 | +1 | $925M |
| Jun 30 2006 | 28 | −1 | $932M |
| Jun 30 2007 | 28 | · | $995M |
| Jun 30 2008 | 30 | +2 | $1.0B |
| Jun 30 2009 | 29 | −1 | $1.1B |
| Jun 30 2010 | 30 | +1 | $1.1B |
| Jun 30 2011 | 30 | · | $1.1B |
| Jun 30 2012 | 30 | · | $1.1B |
| Jun 30 2013PEAK | 31 | +1 | $1.1B |
| Jun 30 2014 | 31 | · | $1.1B |
| Jun 30 2015 | 31 | · | $1.1B |
| Jun 30 2016 | 29 | −2 | $1.2B |
| Jun 30 2017 | 28 | −1 | $1.2B |
| Jun 30 2018 | 29 | +1 | $1.2B |
| Jun 30 2019 | 26 | −3 | $1.3B |
| Jun 30 2020 | 26 | · | $1.5B |
| Jun 30 2021 | 25 | −1 | $1.6B |
| Jun 30 2022 | 25 | · | $1.8B |
| Jun 30 2023 | 25 | · | $1.8B |
| Jun 30 2024 | 26 | +1 | $1.9B |
| Jun 30 2025 | 25 | −1 | $1.9B |
| Jun 30 2026NOW | 23 | −2 | $2.3B |
Banks in Jefferson County
| Bank | Offices | Deposits here |
|---|---|---|
| PremierBank | 5 | $347M |
| Ixonia Bank | 3 | $534M |
| Badger Bank | 3 | $113M |
| Farmers & Merchants State Bank | 2 | $106M |
| Associated Bank, National Association | 2 | $183M |
| Bank of Lake Mills | 2 | $432M |
| Bank Cmg | 2 | $345M |
| BMO Bank National Association | 1 | $130M |
| Johnson Bank | 1 | $54.3M |
| Bank First, N.A. | 1 | $60.9M |
| First Citizens State Bank | 1 | $37.6M |
Every bank office open in Jefferson County
| Bank | Address | Deposits |
|---|---|---|
| Ixonia Bank | W 1046 Marietta AveIxonia 53036 | $392M |
| Bank of Lake MillsBank Of Lake Mills | 136 E Madison StLake Mills 53551 | $339M |
| Bank CmgLake Mills Branch | 365 W Tyranena Park RdLake Mills 53551 | $294M |
| PremierBankPremierbank | 70 N Main StFort Atkinson 53538 | $189M |
| BMO Bank National AssociationWatertown Branch | 205 N 2nd StWatertown 53094 | $130M |
| Associated Bank, National AssociationWatertown Downtown Branch | 600 Main StreetWatertown 53094 | $114M |
| Bank of Lake MillsWatertown Branch | 400 Bernard StWatertown 53094 | $93.0M |
| Farmers & Merchants State Bank | 210 W Madison StWaterloo 53594 | $89.8M |
| PremierBankJefferson Branch | 320 S Center AveJefferson 53549 | $88.3M |
| Ixonia BankWatertown Branch | 109 Oakridge CtWatertown 53094 | $78.3M |
| Associated Bank, National AssociationJefferson Branch | 106 S Main StJefferson 53549 | $69.1M |
| Ixonia BankChurch Street Branch | 1725 S Church StWatertown 53094 | $63.9M |
| Badger Bank | 220 Grant StFort Atkinson 53538 | $62.3M |
| Bank First, N.A.Watertown Branch | 104 W Main StWatertown 53094 | $60.9M |
| Johnson BankFort Atkinson Branch 73000 | 200 Sherman Ave WFort Atkinson 53538 | $54.3M |
| Bank CmgLake Mills Branch | 300 E Lake StLake Mills 53551 | $51.8M |
| PremierBankJohnson Creek Branch | 100 Grell LnJohnson Creek 53038 | $50.7M |
| First Citizens State BankPalmyra Branch | 111 E Main StPalmyra 53156 | $37.6M |
| Badger BankJohnson Creek Branch | 545 Village Walk LnJohnson Creek 53038 | $34.3M |
| PremierBankSullivan Branch | 154 Main StSullivan 53178 | $19.1M |
| Badger BankJefferson Branch | 1003 S Main StJefferson 53549 | $16.7M |
| Farmers & Merchants State BankLake Mills Branch | 550 W Tyranena Park RdLake Mills 53551 | $15.9M |
| PremierBankDrive-In Facility | 100 Sherman Ave EFort Atkinson 53538 · Drive-through / facility office | $0 |
Sorted by deposits booked on June 30, 2026. "Opened" is the establishment date in the FDIC record.
Offices no longer reported
Offices in Jefferson County that filed a report in some year from 1994 on and are missing from 2026. Most closed; some were sold to non-banks or converted. Newest departures first.
| Last bank on the sign | Address | Last report |
|---|---|---|
| PremierBank | 1505 Madison AveFort Atkinson 53538 · Full-service retail office | 2025 |
| PremierBank | 910 S Main StFort Atkinson 53538 · Drive-through / facility office | 2025 |
| Jpmorgan Chase Bank, National Association | 500 East Main StreetWatertown 53094 | 2020 |
| Greenwoods State Bank | 47 S Water Street EFort Atkinson 53538 | 2018 |
| PremierBank | 1491 South Highway 26Jefferson 53549 · Drive-through / facility office | 2018 |
| Associated Bank, National Association | 624 South Church StreetWatertown 53094 · Full-service retail office | 2018 |
| The American National Bank of Beaver Dam | W3308 Highway 18Helenville 53137 | 2016 |
| Firstmerit Bank, National Association | 1320 S Main StJefferson 53549 | 2016 |
| Associated Bank, National Association | 37 East Milwaukee AvenueFort Atkinson 53538 | 2015 |
| BMO Harris Bank National Association | 205 North 2nd StreetWatertown 53094 | 2015 |
| Johnson Bank | 310 Se 4th StreetFort Atkinson 53538 · Mobile / seasonal office | 2008 |
| Citizens Bank | 123 East Milwaukee StreetJefferson 53549 · Drive-through / facility office | 2005 |
| First Federal Capital Bankre-filed as office 43412 | 37 East Milwaukee AvenueAtkinson 53538 | 2004 |
| Associated Bank, National Association | 119 Depot StreetJohnson Creek 53038 | 2003 |
| Associated Bank, National Associationre-filed as office 424192 | 154 Main StreetSullivan 53178 | 2003 |
| First Financial Bank | 633 S. Church St.Watertown 53094 | 1998 |
| Security Bank, S.S.B. | 808 E. Main StreetWatertown 53094 | 1997 |
| M&I Bank South Central | 104 West Main StreetWatertown 53094 | 1996 |
| Firstar Bank Milwaukee, National Association | 37 East Milwaukee AveFort Alkinson 53538 | 1995 |
County FIPS 55055 · 556 square miles of land (2024 Census Gazetteer).