County · code 26065
Ingham CountyMichigan
Ingham County is a county in Michigan, with its county seat in Mason. It was created on October 29, 1829, and named after Samuel D. Ingham.
- Founded1829
- County seatMason
- Named forSamuel D. Ingham
- Land area556 sq mi + 4.6 sq mi water
- Population284,900 2020 Census
- Parcels mapped111,860 checked 15 October 2026
Where it is
Ingham on the map of Michigan
Michigan has 83 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1829 from Shiawassee County, Oakland County and Washtenaw County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Ingham was created from parts of Shiawassee, Oakland, and Washtenaw Counties. It was initially attached to Washtenaw for administrative purposes, then to Jackson for judicial purposes, until it was fully organized and detached from Jackson on June 4, 1838.
- 1829Ingham County created Ingham created by Michigan Territory from Shiawassee (which was attached to Oakland), Washtenaw, and Non-County Area 2 attached to Oakland; Ingham not fully organized, not attached. · Mich. Terr. Laws, 2:sec. 2/p. 735
- 1829Changed Ingham attached to Washtenaw for administrative and judicial purposes. · Mich. Terr. Laws, 2:744-746
- 1837
- 1838Changed Ingham fully organized, detached from Jackson. · Mich. Acts 1838, reg. sess., no. 98/p. 221
Land and parcels
What the maps cover in Ingham
Who publishes each layer, how good it is, and when we last checked.
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Parcels Fallback
Lot lines and tax-map numbers for 111,860 parcels. Drawn for tax purposes: usually within a few feet of a survey, but not a survey. This copy is a fallback, not the county's own: use it as a guide and check the official record.
edited 26 February 2018 · checked 15 October 2026 -
Address points Missing
No public address points layer found for Ingham County yet.
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Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- Official
- from the office that keeps the record
- Good enough
- a reliable statewide or national copy
- Fallback
- a guide only; check the official record
- Missing
- nothing public found yet
People and land
Ingham by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Ingham County's official site
We have found the county's site but not its offices yet; start there.
County government
- County government
The official website of Ingham County.
See your own lot on these maps
Open Ingham County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.
Questions
Common questions about Ingham County
- When was Ingham County founded?
- Ingham County was founded in 1829, formed from Shiawassee County, Oakland County and Washtenaw County, and named after Samuel D. Ingham.
- What is the county seat of Ingham County?
- The county seat of Ingham County is Mason.
- Is there an online parcel map for Ingham County?
- Yes. A public source publishes a parcel map of 111,860 parcels, rated fallback here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Ingham County's boundary or name changed?
- Ingham County was created in 1829 from Shiawassee County, Oakland County and Washtenaw County. Since then the Atlas of Historical County Boundaries records 3 later changes, chiefly involving Jackson County and Washtenaw County.
- Is my lot in a flood zone?
- We do not have flood maps for Ingham County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby