Lake Wisconsin, WI Public Records
Lake Wisconsin is an unincorporated community (a census-designated place) in Columbia County, Wisconsin, with an estimated population of 5,384 (U.S. Census Bureau, 2020–2024 American Community Survey) and 13.4 square miles of land.
🏢 Local Government for Lake Wisconsin
Lake Wisconsin is not an incorporated city or town, so it has no city hall, town clerk or local government of its own. Local government services and records for Lake Wisconsin come from Columbia County and from the township or town government whose territory includes it. Birth and death certificates, marriage records, deeds and court files come from the county and state offices below.
Population figure: U.S. Census Bureau, 2020–2024 American Community Survey 5-year estimate for the Lake Wisconsin census-designated place (a statistical area, not a government).
↑ Back to record types🏛️ County Courthouse & Records Office for Lake Wisconsin
Lake Wisconsin is in Columbia County (with parts in Sauk County). In Wisconsin, deeds, mortgages and other land records are recorded by the county Register of Deeds. Divorce cases in Wisconsin are heard by the Circuit Court in each county. Wills and estates in Wisconsin are handled by the Circuit Court (probate) in each county.
📍 Columbia County at a Glance
| County | Columbia County |
| County population (2024 est.) | 58,113 Source: www2.census.gov ↗ |
| Also partly in | Sauk County |
⚖️ Columbia County Clerk of Circuit Court
| Address | 400 DeWitt St, Portage, WI 53901-0587 |
| Directions | Get directions ↗ |
| Phone | (608) 742-9642 |
| Hours | Not stated |
| Records available | Circuit court case records (civil, criminal, family, small claims, traffic) |
| Official website | co.columbia.wi.us |
| Sources | wicourts.gov/…/clerkcontact.htm ↗ |
| Last verified | October 16, 2026 |
See the full Columbia County records page →
↑ Back to record types📋 Where to Get Records for Lake Wisconsin
Where to get the most-requested public records for people and property in Lake Wisconsin, WI:
📋 Lake Wisconsin Records Guide
| Birth & death certificates | Wisconsin Department of Health Services – Vital RecordsIn Wisconsin, certified birth and death certificates can also be ordered from any county Register of Deeds. |
| Deeds & property records | In Wisconsin, deeds, mortgages and other land records are recorded by the county Register of Deeds. |
| Court cases & divorce | Columbia County courthouse. Divorce cases in Wisconsin are heard by the Circuit Court in each county. |
| Wills & estates | Wills and estates in Wisconsin are handled by the Circuit Court (probate) in each county. |
| State court system | Wisconsin Court System |
| Sex offender registry | Wisconsin Sex Offender Registry (Department of Corrections) |