County Maps US

Gregory County, South Dakota

A county in South Dakota, ranked 39 of 66 by population.

CountyFIPS 46053

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

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Population
4,037
+44 (+1.1%) since 2020
Land area
1,015
square miles. A further 3.7% of the total area is water
Population density
4.0
people per square mile, computed rather than published
County seat
Burke
Seat of county government.
Established
1862
163 years ago
Largest city
Gregory city
Population 1,250.

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 Gregory 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 Gregory 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 800 by 561 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 Gregory 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
Population4,03739th of 662,883rd of 3,144
Land area1,015 sq mi29th of 66660th of 3,144
Population density4.0 per sq mi42nd of 662,829th of 3,144
Median household income$62,91754th of 661,805th of 3,143

Full data for Gregory County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population4,037Vintage 2025 Population Estimates
Population in 20203,993Vintage 2025 Population Estimates
2020 estimates base?3,987Vintage 2025 Population Estimates
Land area1,015 sq mi2025 Gazetteer Files
Water area38.6 sq mi2025 Gazetteer Files
Total area1,054 sq mi2025 Gazetteer Files
Population density?4.0 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$62,917American Community Survey 2020-2024 5-Year Estimates
Median home value$139,900American Community Survey 2020-2024 5-Year Estimates
Median age44.7American Community Survey 2020-2024 5-Year Estimates
Households1,609American Community Survey 2020-2024 5-Year Estimates
Housing units2,188American 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
-15
39 births, 54 deaths
Net migration
-18
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 Gregory 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
Charles Mix CountySouth Dakota61 mi9,303
Boyd CountyNebraska38 mi1,674
Tripp CountySouth Dakota35 mi5,708
Keya Paha CountyNebraska14 mi792
Lyman CountySouth Dakota12 mi3,694

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.