Iowa County, Wisconsin ZIP codes
13 ZIP codes are in Iowa County, plus 8 that cross in from neighboring counties. It's part of the Madison, WI metro area.
- ZIP codes
- 13
- Population in these ZIPs
- 22,784
- Avg. median income
- $83,800population-weighted
- Cities & towns
- 12
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Iowa County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 53503 | Arena | 2,057 | $87,361 | $338,900 |
| 53506 | Avoca | 1,011 | $59,861 | $171,500 |
| 53507 | Barneveld | 2,467 | $113,261 | $347,400 |
| 53526 | Cobb | 471 | $79,286 | $200,000 |
| 53533 | Dodgeville | 7,283 | $77,849 | $336,000 |
| 53535 PO Box | Edmund | — | — | — |
| 53543 | Highland | 1,758 | $77,031 | $298,000 |
| 53544 | Hollandale | 826 | $100,625 | $423,600 |
| 53553 | Linden | 621 | $64,375 | $248,600 |
| 53565 | Mineral Point | 4,778 | $84,589 | $332,600 |
| 53580 | Rewey | 442 | $61,667 | $145,800 |
| 53582 | Ridgeway | 1,070 | $89,107 | $266,400 |
| 53595 PO Box | Dodgeville | — | — | — |
ZIP codes partly in Iowa County
These ZIP codes are mostly in a neighboring county but cover part of Iowa County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 53516 | Blanchardville | Lafayette County | 2,238 | $85,324 | $356,300 |
| 53517 | Blue Mounds | Dane County | 1,799 | $84,722 | $530,200 |
| 53554 | Livingston | Grant County | 1,029 | $74,063 | $240,900 |
| 53560 | Mazomanie | Dane County | 3,416 | $98,409 | $431,400 |
| 53569 | Montfort | Grant County | 978 | $89,500 | $249,200 |
| 53573 | Muscoda | Grant County | 2,906 | $64,776 | $233,500 |
| 53588 | Spring Green | Sauk County | 3,770 | $83,417 | $387,300 |
| 53818 | Platteville | Grant County | 16,024 | $55,567 | $260,000 |
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
Cities and towns in Iowa County
Nearby counties
Frequently asked questions
How many ZIP codes are in Iowa County, Wisconsin?
13 ZIP codes are mainly in Iowa County, and 8 more ZIP codes from neighboring areas reach partly into it.
What cities are in Iowa County?
ZIP codes in Iowa County use the city names Arena, Avoca, Barneveld, Cobb, Dodgeville, Edmund, Highland, Hollandale, Linden, Mineral Point, Rewey and Ridgeway.
What metro area is Iowa County in?
Iowa County is part of the Madison, WI metropolitan statistical area.