Sauk County, Wisconsin
Sauk County is a county in Wisconsin. Its county FIPS code is 55111. Use the boundary map and neighboring areas below to check the jurisdiction you need.
- Official code
- 55111
- Representative coordinates
- 43.428001, -89.943318
- County type
- County
- County seat or government
- Baraboo
- Resident population, July 2025
- 66,652
- Land area
- 2,153.8 km²
- Water area
- 45.579 km²
- State
- Wisconsin
The representative point identifies this area. It is not a street address or a boundary survey.
Time zones in Sauk County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| America/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Listed zones overlap the mapped area. A point lookup can distinguish sides of a boundary. Your device’s zone may differ.
Census ZIP areas
53556 · 53561 · 53577 · 53578 · 53583 · 53588 · 53913 · 53924 · 53937 · 53940 · 53941 · 53942 · 53943 · 53944 · 53951 · 53959 · 53961 · 53965 · 53968
These statistical areas overlap the boundary. They are not delivery assignments; confirm mailing details with USPS ZIP Code Lookup.
Official county information
Use the US government local-office directory ↗ to find the office responsible for your address. A county website has not been confidently matched here. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Cities, towns and communities
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Baraboo city, WI
- Bluffview CDP, WI
- Cazenovia village, WI
- Ironton village, WI
- Lake Delton village, WI
- Lake Wisconsin CDP, WI
- La Valle village, WI
- Lime Ridge village, WI
- Loganville village, WI
- Merrimac village, WI
- North Freedom village, WI
- Plain village, WI
- Prairie du Sac village, WI
- Reedsburg city, WI
- Rock Springs village, WI
- Sauk City village, WI
- Spring Green village, WI
- West Baraboo village, WI
- Wisconsin Dells city, WI
Areas sharing the mapped boundary
These areas touch this mapped boundary.
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
Find the county at your current point, check its ZIP area, or find its physical time zone.