County Maps US

Alcona County, Michigan

A county in Michigan, ranked 75 of 83 by population.

CountyFIPS 26001

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

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Population
10,556
+372 (+3.7%) since 2020
Land area
674.7
square miles. A further 62.3% of the total area is water
Population density
15.6
people per square mile, computed rather than published
County seat
Harrisville
Seat of county government.
Established
1840
185 years ago
Largest city
Harrisville city
Population 443.

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 Alcona 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 Alcona 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 800 by 655 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 Alcona 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
Population10,55675th of 832,374th of 3,144
Land area674.7 sq mi30th of 831,397th of 3,144
Population density15.6 per sq mi73rd of 832,374th of 3,144
Median household income$54,99372nd of 832,473rd of 3,143

Full data for Alcona County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population10,556Vintage 2025 Population Estimates
Population in 202010,184Vintage 2025 Population Estimates
2020 estimates base?10,161Vintage 2025 Population Estimates
Land area674.7 sq mi2025 Gazetteer Files
Water area1,116 sq mi2025 Gazetteer Files
Total area1,791 sq mi2025 Gazetteer Files
Population density?15.6 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$54,993American Community Survey 2020-2024 5-Year Estimates
Median home value$162,800American Community Survey 2020-2024 5-Year Estimates
Median age60.0American Community Survey 2020-2024 5-Year Estimates
Households5,305American Community Survey 2020-2024 5-Year Estimates
Housing units10,320American 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
-157
67 births, 224 deaths
Net migration
+164
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 4 areas bordering Alcona 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
Iosco CountyMichigan77 mi25,266
Alpena CountyMichigan74 mi28,853
Oscoda CountyMichigan24 mi8,723
Ogemaw CountyMichigana single point21,121

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.