Charles Mix County, South Dakota Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 20th-largest in South Dakota
The population of Charles Mix County, South Dakota is 9,281 as of the 2023 American Community Survey, making it the 20th-largest county in South Dakota. The median household income is $64,850, the median home value is $169,200, and the median age is 36.1.
The population of Charles Mix County has grown 2.1% since 2010 (9,153 → 9,343), a +0.15% annualized rate.
9,281
Population
+0.15%
Annual growth
8
People / sq mi
$64,850
Median Income
$169,200
Median Home Value
Charles Mix County covers 1,097 sq mi of land at 8.5 people per square mile.
About Charles Mix County, SD
Charles Mix County skews on age — the median resident is 36.1, younger than the national median. Charles Mix County is a county in South Dakota with a population of 9,281. It ranks #20 among counties in South Dakota by population.
Household earnings are middling, with a median of $64,850 — below the US median of $78,538. The poverty rate is 15.1%, above the national 12.4%. Median home value is $169,200, with typical rent around $727.
25.1% of adults 25 and older hold a bachelor’s degree, below the national average of 35.0%. About 12.3% of workers primarily work from home, below the national 14.0%, and the average commute runs about 14 minutes each way.
Charles Mix County Population History (2010-2024)
The county of Charles Mix County had a population of 9,153 in 2010 and 9,343 in 2024, a 2.1% growth over 14 years. The peak was 9,402 in 2017. Average annual growth rate: 0.15%.
9,343
Population (2024)
9,153
Population (2010)
9,402
Peak (2017)
0.15%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 9,153 |
| 2011 | 9,187 |
| 2012 | 9,192 |
| 2013 | 9,184 |
| 2014 | 9,238 |
| 2015 | 9,359 |
| 2016 | 9,363 |
| 2017 | 9,402 |
| 2018 | 9,309 |
| 2019 | 9,286 |
| 2020 | 9,369 |
| 2021 | 9,187 |
| 2022 | 9,237 |
| 2023 | 9,271 |
| 2024 | 9,343 |
Race & Ethnicity
| White | 64.0% |
| Black or African American | 0.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 33.9% |
| Two or More Races | 0.0% |
Age & Sex
36.1
Median Age
49.5%
Female
50.5%
Male
18.5%
Age 65+
Age Distribution
Children (under 15): 25.9% · Seniors (65+): 18.5%
Income & Poverty
| Median household income | $64,850$-7,571 vs state |
| Mean household income | $81,581 |
| Per-capita income | $29,095 |
| Poverty rate | 15.1%+7.7% vs state |
| Unemployment rate | 3.6% |
| Employment-to-population | 58.0% |
Top Industries by Employment
The largest employment sector in Charles Mix County is professional & business services, accounting for 23.9% of workers.
How residents commute
0.9%
Drive alone
4.0%
Carpool
74.5%
Public transit
12.3%
Work from home
14.2 min
Avg commute
Housing
$169,200$-67,600 vs state
Median home value
$727
Median rent
73.9%
Homeownership rate
3,664
Total housing units
82.0%
Occupied
18.0%
Vacant
26.1%
Renter-occupied
Social & access
81.9%
With health insurance
87.7%
With broadband internet
14.8%
Foreign-born
7.2%
Veterans (18+)
11.6%
With a disability
93.2%
Speak language other than English at home
Education
89.6%
High School+
25.1%
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
Charles Mix County, South Dakota has a population of 9,281 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 20th-largest county in South Dakota. Population density is 8 people per square mile.
The population of Charles Mix County has grown 2.1% since 2010 (9,153 → 9,343), a +0.15% annualized rate.
The median household income in Charles Mix County, South Dakota is $64,850, with mean (average) household income of $81,581 and per-capita income of $29,095. 15.1% of residents live below the federal poverty level.
In Charles Mix County, the largest racial and ethnic groups are White (64.0%), Hispanic or Latino (33.9%), Black or African American (0.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Charles Mix County, South Dakota is 36.1 years. Residents are 49.5% female and 50.5% male.
The median home value in Charles Mix County is $169,200 and median monthly rent is $727. 73.9% of occupied housing units are owner-occupied. The county has 3,664 total housing units, 18.0% of which are vacant.
The largest employment sector in Charles Mix County, South Dakota is professional, scientific, and management services, employing 23.9% of workers. The unemployment rate is 3.6%.
Sioux Falls is among the largest cities associated with Charles Mix County, South Dakota, with a population of 197,642.
Charles Mix County, SD Climate
Charles Mix County, SD has an average annual temperature of 9.1°C (48°F) and receives about 584 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
9.1°C
Avg Temp
584
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -7° / 19° | 11 mm |
| February | -3° / 26° | 15 mm |
| March | 2° / 36° | 40 mm |
| April | 9° / 48° | 62 mm |
| May | 16° / 60° | 83 mm |
| June | 21° / 70° | 99 mm |
| July | 24° / 75° | 76 mm |
| August | 23° / 74° | 59 mm |
| September | 18° / 64° | 63 mm |
| October | 10° / 51° | 39 mm |
| November | 1° / 34° | 22 mm |
| December | -5° / 23° | 15 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 Charles Mix County, SD
The most comfortable months to visit Charles Mix County, SD are typically June, August and September, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 31°C high). The coldest is January (near -13°C low). June is usually the wettest month.
Where to stay near Charles Mix 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.