Janesville, WI Public Records
Janesville is an incorporated city in Rock County, Wisconsin, with an estimated population of 66,428 (U.S. Census Bureau, July 2024 estimate) and 34.6 square miles of land. That is up about 795 residents since the 2020 Census base.
🏢 Janesville City Hall
Janesville's own city government keeps its local records: council or board meeting minutes, local ordinances and resolutions, local permits and licenses, and its own budget and contracts. Requests for those records go to the city clerk under Wisconsin's Public Records Law. In Wisconsin, the city clerk also runs local elections and voter registration. Birth and death certificates, marriage records, deeds and court files are generally kept by county and state offices rather than by the city; see the offices below.
📇 Janesville Contact on File
| Government | City Of Janesville |
| Mailing address | 18 N Jackson St, PO Box 5005, Janesville, WI 53547 |
| Phone | Not stated |
| Official website | www.ci.janesville.wi.us |
| Source | U.S. Census Bureau, 2022 Census of Governments: Government Units listing ↗ |
This is the mailing address the government reported to the U.S. Census Bureau; it may be a post office box or the office of an elected official rather than a public counter, and the source does not list a phone number. The website was reported by the government and was answering when we last checked. Call or check the official website before you visit.
↑ Back to record types🏛️ County Courthouse & Records Office for Janesville
Janesville is in Rock 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.
📍 Rock County at a Glance
| County | Rock County |
| County population (2024 est.) | 165,461 Source: www2.census.gov ↗ |
⚖️ Rock County Clerk of Circuit Court
| Address | 51 S. Main St. - Floor 2, Janesville, WI 53545-3978 |
| Directions | Get directions ↗ |
| Phone | (608) 743-2200 |
| Hours | Not stated |
| Records available | Circuit court case records (civil, criminal, family, small claims, traffic) |
| Official website | co.rock.wi.us |
| Sources | wicourts.gov/…/clerkcontact.htm ↗ |
| Last verified | October 16, 2026 |
See the full Rock County records page →
↑ Back to record types📋 Where to Get Records for Janesville
Where to get the most-requested public records for people and property in Janesville, WI:
📋 Janesville 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 | Rock 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) |