Banks in Sun Prairie, WI
Branches open
12
Banks present
10
Deposits (2026)
$1.9B
Closings on record
1
3 openings
Banks by deposits in Sun Prairie (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Johnson Bank | $623M | 33.6% | 1 |
| Bank of Sun Prairie | $559M | 30.1% | 3 |
| Associated Bank | $165M | 8.9% | 1 |
| The Park Bank | $108M | 5.8% | 1 |
| U.S. Bank | $98M | 5.3% | 1 |
| BMO Bank | $95M | 5.1% | 1 |
| Old National Bank | $89M | 4.8% | 1 |
| Chase Bank | $53M | 2.9% | 1 |
| One Community Bank | $45M | 2.4% | 1 |
| Starion Bank | $22M | 1.2% | 1 |
All branches
- Johnson Bank — 186 S City Station Dr$623M
- Bank of Sun Prairie — 228 E Main St$423M
- Associated Bank — 658 S Grand Ave$165M
- Bank of Sun Prairie — 695 S Grand Ave$136M
- The Park Bank — 110 N Grand Ave$108M
- U.S. Bank — 2311 Windsor St$98M
- BMO Bank — 1140 W Main St$95M
- Old National Bank — 1516 W Main St$89M
- Chase Bank — 620 Spring St$53M
- One Community Bank — 2580 Ironwood Dr$45M
- Starion Bank — 350 S Grand Ave$22M
- Bank of Sun Prairie — 2850 Ironwood Dr$49K
Closings
- 550 BROADWAY DR · closed July 31, 2025
Transcribed from FDIC BankFind Suite active-location records, the annual Summary of Deposits and structure-change records. Deposit figures reflect the office to which deposits are reported and may not represent where depositors live.