Watertown-Fort Atkinson, WI micro area ZIP codes
The Watertown-Fort Atkinson, WI micropolitan statistical area (CBSA 48020) covers 1 county in Wisconsin and 10 ZIP codes.
- ZIP codes
- 10
- Population
- 76,915
- Avg. median income
- $84,700population-weighted
- Counties
- 1
Click anywhere on the map to see which ZIP code it's in.
Counties in the Watertown-Fort Atkinson, WI area
ZIP codes in the Watertown-Fort Atkinson, WI area
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 53036 | Ixonia | Jefferson County | 3,730 | $92,674 | $479,100 |
| 53038 | Johnson Creek | Jefferson County | 4,192 | $96,127 | $417,600 |
| 53094 | Watertown | Jefferson County | 17,998 | $73,443 | $322,300 |
| 53137 | Helenville | Jefferson County | 1,650 | $116,550 | $465,700 |
| 53156 | Palmyra | Jefferson County | 3,232 | $85,313 | $375,200 |
| 53178 | Sullivan | Jefferson County | 2,497 | $99,875 | $435,300 |
| 53538 | Fort Atkinson | Jefferson County | 18,813 | $82,783 | $329,500 |
| 53549 | Jefferson | Jefferson County | 9,873 | $80,101 | $346,500 |
| 53551 | Lake Mills | Jefferson County | 9,731 | $94,401 | $429,300 |
| 53594 | Waterloo | Jefferson County | 5,199 | $88,390 | $360,300 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Frequently asked questions
How many ZIP codes are in the Watertown-Fort Atkinson, WI micro area?
10 ZIP codes, based on each ZIP code's main county.
Which counties make up the Watertown-Fort Atkinson, WI area?
Jefferson County.
What is an MSA?
A metropolitan statistical area (MSA) is a core city of 50,000+ people plus the surrounding counties tied to it by commuting, as defined by the U.S. Office of Management and Budget. Micropolitan areas have a core of 10,000–50,000. Together they are called core-based statistical areas (CBSAs).