Branch Presence
Banks with Branches in Brookfield, WI
BMO Bank N.A. is the biggest bank in Brookfield, WI, with $741.0M in deposits at its Brookfield branches, 14.9% of the city's total as of the June 30, 2026 FDIC Summary of Deposits.
21 banks operate 33 branches in Brookfield, WI, ranked below by local branch count from the FDIC Summary of Deposits. This counts every bank with a branch here, not only banks headquartered locally.
Deposit share is each bank's share of the $4.98B held in Brookfield, WI, as of the June 30, 2026 FDIC Summary of Deposits, ranked by deposits (#1 is largest). Banks that book deposits at a headquarters branch can show a share that exceeds their local customer base.
| Bank | Branches in Brookfield | Local deposits | Deposit share |
|---|---|---|---|
| BMO Bank N.A. | 4 | $741.0M | 14.9% (#1) |
| JPMorgan Chase Bank, N.A. | 3 | $600.2M | 12.0% (#2) |
| North Shore Bank | 3 | $306.1M | 6.1% (#7) |
| U.S. Bank N.A. | 2 | $302.2M | 6.1% (#8) |
| Associated Bank, N.A. | 2 | $258.7M | 5.2% (#9) |
| Bank Five Nine | 2 | $250.9M | 5.0% (#10) |
| Waterstone Bank | 2 | $249.0M | 5.0% (#11) |
| Tri City National Bank | 2 | $201.6M | 4.0% (#12) |
| Old National Bank | 1 | $550.3M | 11.0% (#3) |
| First Business Bank | 1 | $490.1M | 9.8% (#4) |
| Great Midwest Bank, State Savings Bank | 1 | $337.6M | 6.8% (#5) |
| Spring Bank | 1 | $332.3M | 6.7% (#6) |
| First-Citizens Bank & Trust Company | 1 | $76.5M | 1.5% (#13) |
| Waukesha State Bank | 1 | $66.9M | 1.3% (#14) |
| State Bank of Chilton | 1 | $47.2M | 0.9% (#15) |
| Johnson Bank | 1 | $47.0M | 0.9% (#16) |
| Cibm Bank | 1 | $35.7M | 0.7% (#17) |
| First Federal Bank of Wisconsin | 1 | $32.6M | 0.7% (#18) |
| Westbury Bank | 1 | $21.8M | 0.4% (#19) |
| PNC Bank, N.A. | 1 | $21.3M | 0.4% (#20) |
| Marathon Bank | 1 | $13.1M | 0.3% (#21) |
County deposit market: Waukesha, WI
The $18.94B held across 34 FDIC-insured banks in this county, as of the June 30, 2026 FDIC Summary of Deposits. The 10 largest are shown; see every bank in the Waukesha, WI market with its change from a year earlier. Banks only: credit unions are not in the Summary of Deposits.
| Rank | Bank | Deposit share | Deposits | Branches |
|---|---|---|---|---|
| 1 | BMO Bank N.A. | 11.9% | $2.24B | 14 |
| 2 | Town Bank, N.A. | 11.1% | $2.11B | 6 |
| 3 | JPMorgan Chase Bank, N.A. | 9.7% | $1.84B | 11 |
| 4 | Associated Bank, N.A. | 9.4% | $1.78B | 13 |
| 5 | U.S. Bank N.A. | 8.2% | $1.55B | 13 |
| 6 | Bank Five Nine | 7.9% | $1.50B | 8 |
| 7 | Waukesha State Bank | 6.8% | $1.29B | 15 |
| 8 | Citizens Bank | 4.7% | $895.3M | 9 |
| 9 | North Shore Bank | 3.1% | $580.3M | 7 |
| 10 | Old National Bank | 2.9% | $550.3M | 1 |
Metro area deposit market: Milwaukee-Waukesha, WI
The $79.93B held across 43 FDIC-insured banks in this metro area, as of the June 30, 2026 FDIC Summary of Deposits. The 10 largest are shown; see every bank in the Milwaukee-Waukesha, WI market with its change from a year earlier. Banks only: credit unions are not in the Summary of Deposits.
| Rank | Bank | Deposit share | Deposits | Branches |
|---|---|---|---|---|
| 1 | U.S. Bank N.A. | 34.3% | $27.39B | 37 |
| 2 | BMO Bank N.A. | 12.8% | $10.26B | 51 |
| 3 | JPMorgan Chase Bank, N.A. | 11.4% | $9.14B | 33 |
| 4 | Associated Bank, N.A. | 10.6% | $8.46B | 37 |
| 5 | Town Bank, N.A. | 3.5% | $2.83B | 14 |
| 6 | Bank Five Nine | 2.6% | $2.10B | 15 |
| 7 | PNC Bank, N.A. | 2.3% | $1.83B | 23 |
| 8 | Wells Fargo Bank, N.A. | 2.0% | $1.57B | 10 |
| 9 | Waterstone Bank | 1.8% | $1.47B | 16 |
| 10 | Tri City National Bank | 1.8% | $1.46B | 21 |
Banks in Brookfield: common questions
What is the biggest bank in Brookfield, WI?
BMO Bank N.A. is the biggest bank in Brookfield, WI, with $741.0M in deposits at its Brookfield branches, 14.9% of the city's total as of the June 30, 2026 FDIC Summary of Deposits.
How many banks are in Brookfield, WI?
21 FDIC-insured banks operate 33 branches in Brookfield, WI as of the June 30, 2026 FDIC Summary of Deposits. This counts every bank with a branch in the city, not only banks headquartered there. Credit unions are not in the Summary of Deposits.
What are the largest banks in Brookfield, WI?
Ranked by deposits held in Brookfield branches as of the June 30, 2026 FDIC Summary of Deposits: 1. BMO Bank N.A. (14.9%); 2. JPMorgan Chase Bank, N.A. (12.0%); 3. Old National Bank (11.0%); 4. First Business Bank (9.8%); 5. Great Midwest Bank, State Savings Bank (6.8%). The share is each bank's part of all deposits in the city.
Largest banks in Wisconsin
For the state as a whole, see the largest banks in Wisconsin, ranked by total assets and by deposits in Wisconsin branches, or every bank in the Wisconsin bank directory.
Banks in other Wisconsin cities:
About this data
Branch counts and local deposits come from the FDIC Summary of Deposits, the annual June 30 survey of branch-office deposits for every FDIC-insured bank. Click any bank to see its full regulatory profile and complete branch network. Looking for banks headquartered here instead? See the US bank directory.