County banking markets / WI / 55133
WaukeshaWisconsin
FIPS 55133. Branch offices reported to the FDIC Summary of Deposits, June 30 of each survey year, 1994–2025. One of 72 counties in Wisconsin’s 2025 survey.
Concentration, 1994–2025
Branch-count HHI squares each institution’s share of the county’s branch offices; deposit HHI squares its share of county deposits. The bands are the 2010 Horizontal Merger Guidelines classification, the dashed line the 1,800 level above which the Federal Reserve reviews a merger centrally. In 2025 this market is unconcentrated on branches (568) and unconcentrated on deposits (725).
Source: FDIC Summary of Deposits | DOJ & FTC, Horizontal Merger Guidelines (2010), section 5.3 | Federal Reserve, Competitive Effects of Mergers and Acquisitions FAQs Both indices computed from the SOD branch rows for this county, June 30 of each survey year. Neither is the Fed's screen HHI: no thrift weighting, no exclusion of specialty and internet banks, no central-booking adjustment. Methodology
Branches and institutions
130 branch offices and 38 institutions in 1994; 148 and 34 in 2025. Deposits booked in the county went from $3.70B to $18.11B, nominal.
Source: FDIC Summary of Deposits FDIC Summary of Deposits, June 30 of each survey year, 1994-2025. Methodology
Who holds the deposits, 2025
Every institution with a branch in the county, ranked by deposits booked here. Both shares are shown because they are the two indices above: squaring and summing the deposit column gives the deposit HHI, the branch column the branch-count HHI.
| # | Institution | Deposits | Deposit share | Branches | Branch share |
|---|---|---|---|---|---|
| 1 | BMO Bank National Association cert 16571 | $2.36B | 13.03% | 14 | 9.46% |
| 2 | Town Bank, National Association cert 34717 | $1.89B | 10.43% | 6 | 4.05% |
| 3 | JPMorgan Chase Bank, National Association cert 628 | $1.84B | 10.17% | 10 | 6.76% |
| 4 | Associated Bank, National Association cert 5296 | $1.63B | 9.03% | 13 | 8.78% |
| 5 | Bank Five Nine cert 12517 | $1.52B | 8.39% | 8 | 5.41% |
| 6 | U.S. Bank National Association cert 6548 | $1.50B | 8.27% | 13 | 8.78% |
| 7 | Waukesha State Bank cert 16160 | $1.26B | 6.99% | 15 | 10.14% |
| 8 | Citizens Bank cert 13055 | $848.6M | 4.69% | 9 | 6.08% |
| 9 | North Shore Bank cert 28679 | $574.4M | 3.17% | 7 | 4.73% |
| 10 | First Business Bank cert 15229 | $466.7M | 2.58% | 1 | 0.68% |
| 11 | PNC Bank, National Association cert 6384 | $413.7M | 2.29% | 6 | 4.05% |
| 12 | Great Midwest Bank, S.S.B. cert 29657 | $389.9M | 2.15% | 2 | 1.35% |
| 13 | WaterStone Bank, SSB cert 28513 | $362.0M | 2.00% | 4 | 2.70% |
| 14 | Wells Fargo Bank, National Association cert 3511 | $349.3M | 1.93% | 3 | 2.03% |
| 15 | Old National Bank cert 3832 | $348.3M | 1.92% | 1 | 0.68% |
| 16 | First-Citizens Bank & Trust Company cert 11063 | $321.7M | 1.78% | 3 | 2.03% |
| 17 | Spring Bank cert 58780 | $316.8M | 1.75% | 1 | 0.68% |
| 18 | Tri City National Bank cert 18922 | $233.9M | 1.29% | 4 | 2.70% |
| 19 | Westbury Bank cert 28400 | $207.9M | 1.15% | 2 | 1.35% |
| 20 | CIBM Bank cert 11729 | $158.5M | 0.88% | 2 | 1.35% |
| 21 | National Exchange Bank and Trust cert 10044 | $157.2M | 0.87% | 1 | 0.68% |
| 22 | Ixonia Bank cert 12514 | $155.2M | 0.86% | 3 | 2.03% |
| 23 | Johnson Bank cert 20296 | $131.7M | 0.73% | 4 | 2.70% |
| 24 | First Federal Bank of Wisconsin cert 30422 | $126.1M | 0.70% | 3 | 2.03% |
| 25 | PyraMax Bank, FSB cert 29120 | $119.9M | 0.66% | 2 | 1.35% |
| 26 | Horicon Bank cert 11236 | $87.5M | 0.48% | 2 | 1.35% |
| 27 | The Huntington National Bank cert 6560 | $87.0M | 0.48% | 1 | 0.68% |
| 28 | Peoples State Bank cert 18569 | $75.0M | 0.41% | 1 | 0.68% |
| 29 | Collins State Bank cert 14914 | $60.4M | 0.33% | 2 | 1.35% |
| 30 | State Bank of Chilton cert 12331 | $42.5M | 0.23% | 1 | 0.68% |
| 31 | The Equitable Bank, S.S.B. cert 28614 | $32.6M | 0.18% | 1 | 0.68% |
| 32 | Alerus Financial, National Association cert 3931 | $13.3M | 0.07% | 1 | 0.68% |
| 33 | The Greenwood's State Bank cert 11623 | $12.5M | 0.07% | 1 | 0.68% |
| 34 | Marathon Bank cert 29745 | $10.3M | 0.06% | 1 | 0.68% |
Source: FDIC Summary of Deposits June 30, 2025. Branch rows grouped by FDIC certificate; names as reported to the survey. Deposit share is n/a where the county's total SOD deposits are zero. Methodology
Back to county banking markets, up to Wisconsin, or read the methodology for the two HHI constructions and what they cannot tell you.