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Clark County, MO
8 cities and towns and 7 ZIP codes in Clark County, Missouri.
Population
6,675
Land area
505sq mi
People per sq mi
13
ZIP codes
7
Cities and towns in Clark County
Clark County at a glance
- Clark County is 85% less dense than Missouri as a whole.
- The median household income is $51,781, 27% below the Missouri median of $70,702.
- A typical owner-occupied home is valued at $130,700 (43% below Missouri) and median rent is $612 a month.
- Its largest cities are Kahoka (2,072), Wayland (439) and Wyaconda (195).
Local data for Clark County, MO
Counts from official public data
Housing and community stats
Clark County, MO, American Community Survey 2020-2024
Median household income
$51,781
Poverty rate
11.2%
Median home value
$130,700
Median rent
$612/mo
Homeownership
78.3%
Bachelor's or higher
14.9%
Median age
43.5
Average commute
25.3 min
Largest reported origins and ancestries: German Americans (1,726), Irish Americans (744), Dutch Americans (134).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
3.9%
Aug 2026, -1.2 pts in a year
Average annual pay
$37,644
1,383 jobs, 2025
Income per person
$46,744
BEA, 2024
Federal spending
$45.1M
FY 2026, $6,802 per person
PPP loans
$10.8M
472 loans, 1,394 jobs reported
Campaign donations
$5,530
Itemized, 2026 cycle
How people get to work
Clark County, MO, workers 16 and older. American Community Survey 5-year estimates
- Drove alone77.9%
- Carpooled9.3%
- Public transit0.0%
- Walked2.9%
- Bicycle0.3%
- Taxi, ride-hailing, motorcycle or other0.8%
- Worked from home8.9%
Average one-way commute: 25.3 minutes for people who do not work from home.
Environment and hazard risk
Clark County, MO, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: heat wave
Storm events since 1996
476
Most often thunderstorm wind
Flood insurance policies
28
0.6% of homes, county
July high / Jan low
86° / 15°F
39.2 inches of rain a year
Hazards, floods and storm historyCheck a flood zone4 historic places
Health statistics
Share of adults in Clark County, MO, CDC PLACES estimates
Obesity
41.7%
U.S. 33.3% +8.4 pts
Diabetes
14.9%
U.S. 12.1% +2.8 pts
Smoking
21.0%
U.S. 12.8% +8.2 pts
Uninsured (18-64)
9.9%
U.S. 11.1% -1.2 pts
Cities, towns and ZIP codes in Clark County
Population shown
Frequently asked questions
- What is the largest city in Clark County, MO?
- Kahoka is the largest city or town in Clark County, with about 2,072 residents.
- How many ZIP codes are in Clark County?
- Clark County includes 7 ZIP Code Tabulation Areas, including 63430, 63445, 63453, 63465, 63466.
- What is the population of Clark County, MO?
- About 6,675 people live in Clark County, based on American Community Survey 5-year estimates.
- What counties border Clark County?
- Clark County borders Lee County, IA, Hancock County, IL, Lewis County, Van Buren County, IA, Scotland County, Knox County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023