Moody County, South Dakota

A county in South Dakota, ranked 28 of 66 by population.

CountyFIPS 46101

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

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Population
6,632
+286 (+4.5%) since 2020
Land area
519.4
square miles. A further 0.3% of the total area is water
Population density
12.8
people per square mile, computed rather than published
County seat
Flandreau
Seat of county government.
Established
1873
152 years ago
Largest city
Flandreau city
Population 2,396.

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 Moody 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 Moody 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 728 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 Moody 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
Population6,63228th of 662,689th of 3,144
Land area519.4 sq mi59th of 662,008th of 3,144
Population density12.8 per sq mi18th of 662,469th of 3,144
Median household income$78,42714th of 66652nd of 3,143

Full data for Moody County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population6,632Vintage 2025 Population Estimates
Population in 20206,346Vintage 2025 Population Estimates
2020 estimates base?6,340Vintage 2025 Population Estimates
Land area519.4 sq mi2025 Gazetteer Files
Water area1.4 sq mi2025 Gazetteer Files
Total area520.8 sq mi2025 Gazetteer Files
Population density?12.8 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$78,427American Community Survey 2020-2024 5-Year Estimates
Median home value$226,500American Community Survey 2020-2024 5-Year Estimates
Median age40.8American Community Survey 2020-2024 5-Year Estimates
Households2,559American Community Survey 2020-2024 5-Year Estimates
Housing units2,759American 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
+33
92 births, 59 deaths
Net migration
-1
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 6 areas bordering Moody 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
Pipestone CountyMinnesota24 mi9,260
Lake CountySouth Dakota24 mi10,993
Minnehaha CountySouth Dakota22 mi212,691
Brookings CountySouth Dakota22 mi37,635
Lincoln CountyMinnesotaa single point5,583
Rock CountyMinnesotaa single point9,524

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.