Fall River County, South Dakota Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 25th-largest in South Dakota
The population of Fall River County, South Dakota is 7,179 as of the 2023 American Community Survey, making it the 25th-largest county in South Dakota. The median household income is $61,056, the median home value is $176,300, and the median age is 54.5.
The population of Fall River County has grown 3.4% since 2010 (7,115 → 7,359), a +0.24% annualized rate.
7,179
Population
+0.24%
Annual growth
4
People / sq mi
$61,056
Median Income
$176,300
Median Home Value
Fall River County covers 1,740 sq mi of land at 4.1 people per square mile.
About Fall River County, SD
Fall River County skews on age — the median resident is 54.5, older than the national median. With 7,179 residents, Fall River County is a county in South Dakota. It ranks #25 among counties in South Dakota by population.
Household earnings are middling, with a median of $61,056 — below the US median of $78,538. Poverty sits at 17.5%, above the national 12.4%. Median home value is $176,300, with typical rent around $866.
22.2% of adults 25 and older hold a bachelor’s degree, below the national average of 35.0%. About 11.4% of workers primarily work from home, below the national 14.0%, and the average commute runs about 21 minutes each way.
The age structure shapes everything downstream in Fall River County — from housing demand to the mix of working-age earners reflected in the income figures above.
Fall River County Population History (2010-2024)
The county of Fall River County had a population of 7,115 in 2010 and 7,359 in 2024, a 3.4% growth over 14 years. The peak was 7,373 in 2022. Average annual growth rate: 0.26%.
7,359
Population (2024)
7,115
Population (2010)
7,373
Peak (2022)
0.26%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 7,115 |
| 2011 | 6,960 |
| 2012 | 6,974 |
| 2013 | 6,811 |
| 2014 | 6,849 |
| 2015 | 6,809 |
| 2016 | 6,779 |
| 2017 | 6,698 |
| 2018 | 6,730 |
| 2019 | 6,688 |
| 2020 | 6,973 |
| 2021 | 7,217 |
| 2022 | 7,373 |
| 2023 | 7,369 |
| 2024 | 7,359 |
Race & Ethnicity
| White | 85.0% |
| Black or African American | 0.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 9.6% |
| Two or More Races | 0.0% |
Age & Sex
54.5
Median Age
50.6%
Female
49.4%
Male
30.9%
Age 65+
Age Distribution
Children (under 15): 13.7% · Seniors (65+): 30.9%
Income & Poverty
| Median household income | $61,056$-11,365 vs state |
| Mean household income | $74,869 |
| Per-capita income | $36,268 |
| Poverty rate | 17.5%+10.1% vs state |
| Unemployment rate | 1.8% |
| Employment-to-population | 50.7% |
Top Industries by Employment
The largest employment sector in Fall River County is professional & business services, accounting for 26.6% of workers.
How residents commute
0.4%
Drive alone
5.2%
Carpool
76.4%
Public transit
11.4%
Work from home
20.7 min
Avg commute
Housing
$176,300$-60,500 vs state
Median home value
$866
Median rent
75.3%
Homeownership rate
4,101
Total housing units
84.0%
Occupied
16.0%
Vacant
24.7%
Renter-occupied
Social & access
85.0%
With health insurance
90.4%
With broadband internet
48.8%
Foreign-born
15.8%
Veterans (18+)
22.9%
With a disability
96.6%
Speak language other than English at home
Education
91.5%
High School+
22.2%
Bachelor's+
Largest cities in South Dakota
Other counties in South Dakota
Part of South Dakota
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County rankings
Frequently Asked Questions
Fall River County, South Dakota has a population of 7,179 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 25th-largest county in South Dakota. Population density is 4 people per square mile.
The population of Fall River County has grown 3.4% since 2010 (7,115 → 7,359), a +0.24% annualized rate.
The median household income in Fall River County, South Dakota is $61,056, with mean (average) household income of $74,869 and per-capita income of $36,268. 17.5% of residents live below the federal poverty level.
In Fall River County, the largest racial and ethnic groups are White (85.0%), Hispanic or Latino (9.6%), Black or African American (0.2%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Fall River County, South Dakota is 54.5 years. Residents are 50.6% female and 49.4% male.
The median home value in Fall River County is $176,300 and median monthly rent is $866. 75.3% of occupied housing units are owner-occupied. The county has 4,101 total housing units, 16.0% of which are vacant.
The largest employment sector in Fall River County, South Dakota is professional, scientific, and management services, employing 26.6% of workers. The unemployment rate is 1.8%.
Sioux Falls is among the largest cities associated with Fall River County, South Dakota, with a population of 197,642.
Fall River County, SD Climate
Fall River County, SD has an average annual temperature of 8.4°C (47°F) and receives about 413 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
8.4°C
Avg Temp
413
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -6° / 21° | 9 mm |
| February | -2° / 28° | 12 mm |
| March | 2° / 36° | 24 mm |
| April | 8° / 46° | 46 mm |
| May | 14° / 56° | 70 mm |
| June | 19° / 66° | 69 mm |
| July | 23° / 73° | 59 mm |
| August | 22° / 72° | 40 mm |
| September | 16° / 61° | 33 mm |
| October | 9° / 48° | 28 mm |
| November | 1° / 33° | 13 mm |
| December | -5° / 23° | 10 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Fall River County, SD
The most comfortable months to visit Fall River County, SD are typically August, July and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 32°C high). The coldest is January (near -13°C low). May is usually the wettest month.
Where to stay near Fall River County
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Population, race, income, age, and trends across South Dakota
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.