Branch Network
Ixonia Bank Locations & Branches Ixonia, Wisconsin
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Ixonia Bank operates 7 branches from its headquarters in Ixonia, WI, .
Ixonia Bank branch network
All 7 branches are in WISCONSIN, across 5 cities. Watertown, WI has the most of its branches, 2. Its largest office by deposits is its main office in Ixonia, WI, with $391.7M (57.6% of its branch deposits). It had the same number of branches on June 30, 2025.
Ixonia Bank at a glance
Its CET1 capital ratio was 12.23% at Q2 2026, above regulatory requirements.
- Total assets, Q2 2026
- $1.08B
- CET1 ratio, Q2 2026
- 12.23%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1918
Full financial profile · Is Ixonia Bank safe? · Ixonia Bank call report · Routing number
Deposit market share
Share of all FDIC-insured deposits held in each area, from the June 30, 2026 Summary of Deposits. Rank 1 is the largest holder. Shares are by bank charter, not by holding company.
| Area | Rank | Deposit share | Deposits |
|---|---|---|---|
| City: Ixonia, WI (1 branch) | 1 of 1 | 100.0% | $391.7M |
| State: WI (7 branches) | 45 of 185 | 0.3% | $679.8M |
Ranked by total assets among banks headquartered in the state: Largest banks in Wisconsin.
Share by county and metro area
Ixonia Bank's share of FDIC-insured deposits in the counties and metro areas where it has branches, from the June 30, 2026 Summary of Deposits. Up to the ten largest of each are shown, by the bank's deposits. Rank 1 is the largest holder. Banks only: credit unions are not in the Summary of Deposits.
Counties
| County | Rank | Deposit share | Deposits | County total |
|---|---|---|---|---|
| Jefferson, WI (3 branches) | 1 of 11 | 22.8% | $533.9M | $2.34B |
| Waukesha, WI (3 branches) | 23 of 34 | 0.7% | $133.2M | $18.94B |
| Milwaukee, WI (1 branch) | 27 of 27 | <0.1% | $12.7M | $53.86B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Watertown-Fort Atkinson, WI (3 branches) | 1 of 11 | 22.8% | $533.9M | $2.34B |
| Milwaukee-Waukesha, WI (4 branches) | 32 of 43 | 0.2% | $145.9M | $79.93B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Ixonia Bank (main office) | Ixonia, WI | 53036 | $391.7M |
| Watertown Branch | Watertown, WI | 53094 | $78.3M |
| Church Street Branch | Watertown, WI | 53094 | $63.9M |
| Ixonia Bank-Lakes Plaza Branch | Oconomowoc, WI | 53066 | $51.3M |
| Dousman Branch | Dousman, WI | 53118 | $48.2M |
| Oconomowoc Branch | Oconomowoc, WI | 53066 | $33.8M |
| Ixonia Bank-Milwaukee Branch | Milwaukee, WI | 53202 | $12.7M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 12514) · FFIEC NIC profile (RSSD 529341)