Davison County, South Dakota Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 10th-largest in South Dakota
The population of Davison County, South Dakota is 19,936 as of the 2023 American Community Survey, making it the 10th-largest county in South Dakota. The median household income is $61,401, the median home value is $190,000, and the median age is 39.8.
The population of Davison County has grown 2.2% since 2010 (19,484 → 19,907), a +0.15% annualized rate.
19,936
Population
+0.15%
Annual growth
46
People / sq mi
$61,401
Median Income
$190,000
Median Home Value
Davison County covers 436 sq mi of land at 45.8 people per square mile.
About Davison County, SD
Homeownership is the standout figure in Davison County: 63.0% of homes are owner-occupied, close to the national rate. With 19,936 residents, Davison County is a county in South Dakota. It is the #10-largest of all counties in South Dakota nationally.
The typical household here earns about $61,401, below the US median of $78,538. Only 6.1% of residents live in poverty, below the national 12.4%. Homes carry a median value of $190,000, with typical rent around $750.
25.0% of adults 25 and older hold a bachelor’s degree, below the national average of 35.0%. About 9.0% of the workforce is home-based, below the national 14.0%, and the average commute runs about 13 minutes each way.
Davison County Population History (2010-2024)
The county of Davison County had a population of 19,484 in 2010 and 19,907 in 2024, a 2.2% growth over 14 years. The peak was 20,034 in 2016. Average annual growth rate: 0.16%.
19,907
Population (2024)
19,484
Population (2010)
20,034
Peak (2016)
0.16%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 19,484 |
| 2011 | 19,723 |
| 2012 | 19,958 |
| 2013 | 19,950 |
| 2014 | 19,974 |
| 2015 | 19,922 |
| 2016 | 20,034 |
| 2017 | 19,893 |
| 2018 | 19,847 |
| 2019 | 19,865 |
| 2020 | 19,954 |
| 2021 | 19,901 |
| 2022 | 20,025 |
| 2023 | 19,973 |
| 2024 | 19,907 |
Race & Ethnicity
| White | 90.1% |
| Black or African American | 0.6% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 5.8% |
| Two or More Races | 0.0% |
Age & Sex
39.8
Median Age
51.0%
Female
49.0%
Male
20.3%
Age 65+
Age Distribution
Children (under 15): 19.3% · Seniors (65+): 20.3%
Income & Poverty
| Median household income | $61,401$-11,020 vs state |
| Mean household income | $82,114 |
| Per-capita income | $36,524 |
| Poverty rate | 6.1%-1.3% vs state |
| Unemployment rate | 0.6% |
| Employment-to-population | 66.7% |
Top Industries by Employment
The largest employment sector in Davison County is professional & business services, accounting for 25.5% of workers.
How residents commute
0.9%
Drive alone
2.8%
Carpool
78.5%
Public transit
9.0%
Work from home
13.1 min
Avg commute
Housing
$190,000$-46,800 vs state
Median home value
$750
Median rent
63.0%
Homeownership rate
9,550
Total housing units
91.2%
Occupied
8.8%
Vacant
37.0%
Renter-occupied
Social & access
92.3%
With health insurance
91.2%
With broadband internet
22.5%
Foreign-born
7.7%
Veterans (18+)
14.8%
With a disability
96.6%
Speak language other than English at home
Education
91.8%
High School+
25.0%
Bachelor's+
Largest cities in South Dakota
Other counties in South Dakota
Part of South Dakota
Metro areas in South Dakota
County rankings
Frequently Asked Questions
Davison County, South Dakota has a population of 19,936 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 10th-largest county in South Dakota. Population density is 46 people per square mile.
The population of Davison County has grown 2.2% since 2010 (19,484 → 19,907), a +0.15% annualized rate.
The median household income in Davison County, South Dakota is $61,401, with mean (average) household income of $82,114 and per-capita income of $36,524. 6.1% of residents live below the federal poverty level.
In Davison County, the largest racial and ethnic groups are White (90.1%), Hispanic or Latino (5.8%), Black or African American (0.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Davison County, South Dakota is 39.8 years. Residents are 51.0% female and 49.0% male.
The median home value in Davison County is $190,000 and median monthly rent is $750. 63.0% of occupied housing units are owner-occupied. The county has 9,550 total housing units, 8.8% of which are vacant.
The largest employment sector in Davison County, South Dakota is professional, scientific, and management services, employing 25.5% of workers. The unemployment rate is 0.6%.
Sioux Falls is among the largest cities associated with Davison County, South Dakota, with a population of 197,642.
Davison County, SD Climate
Davison County, SD has an average annual temperature of 8.4°C (47°F) and receives about 571 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
571
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -9° / 16° | 12 mm |
| February | -5° / 23° | 15 mm |
| March | 1° / 34° | 40 mm |
| April | 9° / 48° | 65 mm |
| May | 16° / 60° | 84 mm |
| June | 21° / 70° | 88 mm |
| July | 24° / 75° | 73 mm |
| August | 23° / 73° | 57 mm |
| September | 17° / 63° | 55 mm |
| October | 10° / 50° | 42 mm |
| November | 1° / 33° | 28 mm |
| December | -6° / 20° | 12 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 Davison County, SD
The most comfortable months to visit Davison County, SD are typically August, June and July, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 31°C high). The coldest is January (near -14°C low). June is usually the wettest month.
Where to stay near Davison County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.