Clark County, Missouri Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 102nd-largest in Missouri

The population of Clark County, Missouri is 6,680 as of the 2023 American Community Survey, making it the 102nd-largest county in Missouri. The median household income is $51,458, the median home value is $117,600, and the median age is 43.5.

The population of Clark County has declined 7.2% since 2010 (7,139 → 6,623), a -0.53% annualized rate.

Clark County within Missouri · Source: US Census TIGER/Line via us-atlas

6,680

Population

-0.53%

Annual growth

People / sq mi

$51,458

Median Income

$117,600

Median Home Value

Clark County covers 505 sq mi of land at 13.2 people per square mile.

About Clark County, MO

Clark County is a county in Missouri with a population of 6,680. It ranks #102 among counties in Missouri by population. The median age is 43.5, older than the national median. The population is 51.1% male and 48.9% female.

The median household income in Clark County is $51,458, below the US median of $74,580. 5.3% of residents live below the federal poverty level. Home values sit at a median of $117,600, with monthly rent averaging $589. The homeownership rate of 78.5% is higher than the national rate of 64.8%.

Educational attainment in Clark County reflects 12.3% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 7.8% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 27.0 minutes each way.

Clark County Population History (2010-2024)

The county of Clark County had a population of 7,139 in 2010 and 6,623 in 2024, a -7.2% growth over 14 years. The peak was 7,139 in 2010. Average annual growth rate: -0.53%.

6,623

Population (2024)

7,139

Population (2010)

7,139

Peak (2010)

-0.53%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	7,139	-	-	estimate
2011	7,028	-111	-1.55%	estimate
2012	6,968	-60	-0.85%	estimate
2013	6,901	-67	-0.96%	estimate
2014	6,889	-12	-0.17%	estimate
2015	6,811	-78	-1.13%	estimate
2016	6,734	-77	-1.13%	estimate
2017	6,719	-15	-0.22%	estimate
2018	6,827	+108	+1.61%	estimate
2019	6,804	-23	-0.34%	estimate
2020	6,658	-146	-2.15%	estimate
2021	6,734	+76	+1.14%	estimate
2022	6,714	-20	-0.30%	estimate
2023	6,648	-66	-0.98%	estimate
2024	6,623	-25	-0.38%	estimate

Race & Ethnicity

White	95.7%
Black or African American	0.4%
Asian	0.0%
Hispanic or Latino (any race)	1.6%
Two or More Races	0.0%

Age & Sex

43.5

Median Age

48.9%

Female

51.1%

Male

21.0%

Age 65+

Age Distribution

Under 5

6.0%

5–9

6.7%

10–14

6.9%

15–19

7.4%

20–24

3.0%

25–34

10.5%

35–44

11.0%

45–54

12.2%

55–59

8.1%

60–64

7.2%

65–74

12.2%

75–84

6.0%

85+

2.8%

Children (under 15): 19.6% · Seniors (65+): 21.0%

Income & Poverty

Median household income	$51,458$-17,462 vs state
Mean household income	$70,553
Per-capita income	$26,904
Poverty rate	5.3%-3.1% vs state
Unemployment rate	3.1%
Employment-to-population	51.5%

Top Industries by Employment

Manufacturing

23.6%

Professional & business services

18.5%

Construction

10.2%

Education & health care

6.8%

Agriculture

6.7%

Retail trade

5.7%

Finance & real estate

5.4%

Arts, entertainment & food

3.8%

The largest employment sector in Clark County is manufacturing, accounting for 23.6% of workers.

How residents commute

0.0%

Drive alone

3.9%

Carpool

82.6%

Public transit

7.8%

Work from home

27.0 min

Avg commute

Housing

$117,600$-98,000 vs state

Median home value

$589

Median rent

78.5%

Homeownership rate

3,233

Total housing units

70.1%

Occupied

29.9%

Vacant

21.5%

Renter-occupied

Social & access

89.0%

With health insurance

85.6%

With broadband internet

61.8%

Foreign-born

8.0%

Veterans (18+)

14.3%

With a disability

97.9%

Speak language other than English at home

Education

90.0%

High School+

12.3%

Bachelor's+

Largest cities in Missouri

Kansas City (508,233)St. Louis (293,109)Springfield (169,432)Columbia (127,200)Independence (121,944)Lee's Summit (102,583)O'Fallon (92,697)St. Joseph (71,542)St. Charles (71,048)Blue Springs (59,416)All Missouri cities →

Other counties in Missouri

St. Louis County (996,618)Jackson County (717,021)St. Charles County (409,830)Greene County (301,121)St. Louis city (293,109)Clay County (255,566)Jefferson County (228,227)Boone County (185,874)Jasper County (123,532)Cass County (109,393)All Missouri counties →

Part of Missouri

Missouri demographic profile All Missouri data →

Metro areas in Missouri

St. Louis (2,809,414)Kansas City (2,202,006)Springfield (481,671)Columbia (212,850)Joplin (202,258)Jefferson City (150,147)St. Joseph (120,609)Cape Girardeau (97,813)All US metros →

County rankings

US Counties by Population Richest US Counties by Median Household Income Expensive US Counties by Home Value Educated US Counties Counties With Highest Poverty Rates Youngest US Counties by Median Age Oldest US Counties by Median Age Cheapest US Counties by Median Home Value Racially Diverse US Counties Counties With Largest Hispanic Population All rankings →

Frequently Asked Questions

Clark County, Missouri has a population of 6,680 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 102nd-largest county in Missouri. Population density is 13 people per square mile.

The population of Clark County has declined 7.2% since 2010 (7,139 → 6,623), a -0.53% annualized rate.

The median household income in Clark County, Missouri is $51,458, with mean (average) household income of $70,553 and per-capita income of $26,904. 5.3% of residents live below the federal poverty level.

In Clark County, the largest racial and ethnic groups are White (95.7%), Hispanic or Latino (1.6%), Black or African American (0.4%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Clark County, Missouri is 43.5 years. Residents are 48.9% female and 51.1% male.

The median home value in Clark County is $117,600 and median monthly rent is $589. 78.5% of occupied housing units are owner-occupied. The county has 3,233 total housing units, 29.9% of which are vacant.

The largest employment sector in Clark County, Missouri is manufacturing, employing 23.6% of workers. The unemployment rate is 3.1%.

Kansas City is among the largest cities associated with Clark County, Missouri, with a population of 508,233.