Sauk County, Wisconsin ZIP codes
15 ZIP codes are in Sauk County, plus 5 that cross in from neighboring counties. It's part of the Baraboo, WI micro area.
- ZIP codes
- 15
- Population in these ZIPs
- 64,216
- Avg. median income
- $82,600population-weighted
- Cities & towns
- 14
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Sauk County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 53561 | Merrimac | 1,872 | $91,103 | $507,000 |
| 53577 | Plain | 1,363 | $96,500 | $311,400 |
| 53578 | Prairie Du Sac | 6,503 | $105,610 | $430,600 |
| 53583 | Sauk City | 5,816 | $97,286 | $406,900 |
| 53588 | Spring Green | 3,770 | $83,417 | $387,300 |
| 53913 | Baraboo | 21,704 | $74,629 | $315,700 |
| 53937 | Hillpoint | 1,157 | $87,292 | $352,700 |
| 53940 | Lake Delton | 0 | — | — |
| 53941 | La Valle | 2,817 | $82,537 | $365,900 |
| 53942 | Lime Ridge | 235 | $112,292 | $133,300 |
| 53943 | Loganville | 1,245 | $73,000 | $327,400 |
| 53951 | North Freedom | 2,452 | $71,970 | $327,100 |
| 53958 PO Box | Reedsburg | — | — | — |
| 53959 | Reedsburg | 14,451 | $77,924 | $319,500 |
| 53961 | Rock Springs | 831 | $77,298 | $292,500 |
ZIP codes partly in Sauk County
These ZIP codes are mostly in a neighboring county but cover part of Sauk County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 53556 | Lone Rock | Richland County | 2,428 | $67,727 | $255,300 |
| 53924 | Cazenovia | Richland County | 1,346 | $72,333 | $308,700 |
| 53944 | Lyndon Station | Juneau County | 2,207 | $72,614 | $292,500 |
| 53965 | Wisconsin Dells | Adams County | 10,818 | $66,667 | $305,000 |
| 53968 | Wonewoc | Juneau County | 2,429 | $74,479 | $240,400 |
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 Sauk County
Nearby counties
Frequently asked questions
How many ZIP codes are in Sauk County, Wisconsin?
15 ZIP codes are mainly in Sauk County, and 5 more ZIP codes from neighboring areas reach partly into it.
What cities are in Sauk County?
ZIP codes in Sauk County use the city names Baraboo, Hillpoint, La Valle, Lake Delton, Lime Ridge, Loganville, Merrimac, North Freedom, Plain, Prairie Du Sac, Reedsburg and Rock Springs and others.
What metro area is Sauk County in?
Sauk County is part of the Baraboo, WI micropolitan statistical area.