Portsmouth Charter Township, MI Public Records
Portsmouth Charter Township is a charter township with its own local government in Bay County, Michigan, with an estimated population of 3,173 (U.S. Census Bureau, July 2024 estimate) and 20.0 square miles of land. That is down about 50 residents since the 2020 Census base.
🏢 Portsmouth Township Office
Portsmouth Charter Township's own charter township 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 township clerk under the Michigan Freedom of Information Act. In Michigan, the township 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 charter township; see the offices below.
📇 Portsmouth Charter Township Contact on File
| Government | Charter Township Of Portsmouth |
| Contact listed | Township Clerk |
| Mailing address | 1711 Cass Avenue Rd, Bay City, MI 48708 |
| Phone | Not stated |
| Official website | Not stated |
| 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. Call or check the official website before you visit.
↑ Back to record types🏛️ County Courthouse & Records Office for Portsmouth
Portsmouth Charter Township is in Bay County. In Michigan, deeds, mortgages and other land records are recorded by the county Register of Deeds. Divorce cases in Michigan are heard by the Circuit Court (Family Division) in each county. Wills and estates in Michigan are handled by the Probate Court in each county.
📍 Bay County at a Glance
| County | Bay County |
| County population (2024 est.) | 102,651 Source: www2.census.gov ↗ |
⚖️ 18th Circuit Court
| Address | 1230 Washington Ave., Bay City, MI 48708 |
| Directions | Get directions ↗ |
| Phone | (989) 895-4265 |
| Hours | Not stated |
| Records available | Circuit court case records (felonies, civil cases over $25,000, divorce and family cases) |
| Official website | baycounty-mi.gov |
| Sources | courts.michigan.gov/…/trial-court-directory ↗ |
| Last verified | October 16, 2026 |
📜 Bay County Probate Court
| Address | 1230 Washington Ave., Bay City, MI 48708 |
| Directions | Get directions ↗ |
| Phone | (989) 895-4205 |
| Hours | Not stated |
| Records available | Wills, estates, guardianships and mental-health proceedings |
| Official website | baycounty-mi.gov |
| Sources | courts.michigan.gov/…/trial-court-directory ↗ |
| Last verified | October 16, 2026 |
See the full Bay County records page →
↑ Back to record types📋 Where to Get Records for Portsmouth
Where to get the most-requested public records for people and property in Portsmouth, MI:
📋 Portsmouth Records Guide
| Birth & death certificates | Michigan Department of Health and Human Services – Vital RecordsIn Michigan, certified birth and death certificates can also be ordered from the County Clerk. |
| Deeds & property records | In Michigan, deeds, mortgages and other land records are recorded by the county Register of Deeds. |
| Court cases & divorce | Bay County courthouse. Divorce cases in Michigan are heard by the Circuit Court (Family Division) in each county. |
| Wills & estates | Wills and estates in Michigan are handled by the Probate Court in each county. |
| State court system | Michigan Courts |
| Sex offender registry | Michigan Public Sex Offender Registry (Michigan State Police) |