County Maps US

Hanson County, South Dakota

A county in South Dakota, ranked 44 of 66 by population.

CountyFIPS 46061

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

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Population
3,456
-10 (-0.3%) since 2020
Land area
434.6
square miles. A further 0.2% of the total area is water
Population density
8.0
people per square mile, computed rather than published
County seat
Alexandria
Seat of county government.
Established
1873
152 years ago
Largest city
Alexandria city
Population 655.

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 Hanson 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 Hanson County, South Dakota 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 617 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 Hanson County ranks

Position among the 66 counties of South Dakota, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn South DakotaNationally
Population3,45644th of 662,924th of 3,144
Land area434.6 sq mi64th of 662,336th of 3,144
Population density8.0 per sq mi25th of 662,645th of 3,144
Median household income$81,07111th of 66539th of 3,143

Full data for Hanson County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population3,456Vintage 2025 Population Estimates
Population in 20203,466Vintage 2025 Population Estimates
2020 estimates base?3,462Vintage 2025 Population Estimates
Land area434.6 sq mi2025 Gazetteer Files
Water area0.77 sq mi2025 Gazetteer Files
Total area435.4 sq mi2025 Gazetteer Files
Population density?8.0 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$81,071American Community Survey 2020-2024 5-Year Estimates
Median home value$191,200American Community Survey 2020-2024 5-Year Estimates
Median age38.3American Community Survey 2020-2024 5-Year Estimates
Households1,132American Community Survey 2020-2024 5-Year Estimates
Housing units1,291American 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
+22
42 births, 20 deaths
Net migration
-67
More people moved out than moved in.

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

The 5 areas bordering Hanson 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
Davison CountySouth Dakota24 mi20,069
McCook CountySouth Dakota24 mi5,964
Hutchinson CountySouth Dakota18 mi7,413
Miner CountySouth Dakota12 mi2,281
Sanborn CountySouth Dakota5.8 mi2,388

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

All 66 counties of South Dakota

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

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