County Maps US

Lapeer County, Michigan

A county in Michigan, ranked 23 of 83 by population.

CountyFIPS 26087

Within Michigan
Lapeer County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Lapeer, the county seat, located via the 2025 Census Gazetteer.

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Population
89,516
+921 (+1.0%) since 2020
Land area
647.5
square miles. A further 2.3% of the total area is water
Population density
138
people per square mile, computed rather than published
County seat
Lapeer
Seat of county government.
Established
1822
203 years ago
Largest city
Lapeer city
Population 9,201.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Lapeer County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Lapeer County, Michigan from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 643 by 800 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Lapeer County ranks

Position among the 83 counties of Michigan, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn MichiganNationally
Population89,51623rd of 83672nd of 3,144
Land area647.5 sq mi32nd of 831,459th of 3,144
Population density138 per sq mi24th of 83735th of 3,144
Median household income$77,30616th of 83713th of 3,143

Full data for Lapeer County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population89,516Vintage 2025 Population Estimates
Population in 202088,595Vintage 2025 Population Estimates
2020 estimates base?88,628Vintage 2025 Population Estimates
Land area647.5 sq mi2025 Gazetteer Files
Water area15.4 sq mi2025 Gazetteer Files
Total area662.8 sq mi2025 Gazetteer Files
Population density?138 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$77,306American Community Survey 2020-2024 5-Year Estimates
Median home value$239,000American Community Survey 2020-2024 5-Year Estimates
Median age44.7American Community Survey 2020-2024 5-Year Estimates
Households34,836American Community Survey 2020-2024 5-Year Estimates
Housing units37,147American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
-167
789 births, 956 deaths
Net migration
+412
More people moved in than moved out.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 6 areas bordering Lapeer County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Tuscola CountyMichigan24 mi52,680
Genesee CountyMichigan24 mi401,093
St. Clair CountyMichigan18 mi160,486
Sanilac CountyMichigan18 mi40,083
Oakland CountyMichigan18 mi1,288,337
Macomb CountyMichigan6.1 mi886,221

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 83 counties of Michigan

Open the interactive Michigan county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.