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Knox County, MO
7 cities and towns and 7 ZIP codes in Knox County, Missouri.
Population
3,756
Land area
504sq mi
People per sq mi
7
ZIP codes
7
Cities and towns in Knox County
Knox County at a glance
- Knox County is 92% less dense than Missouri as a whole.
- Households here earn a median of $57,788 a year, 18% less than the Missouri figure of $70,702.
- A typical owner-occupied home is valued at $101,400 (56% below Missouri) and median rent is $666 a month.
- The biggest population centers are Edina (1,250), Hurdland (173) and Knox City (103).
Local data for Knox County, MO
Counts from official public data
Housing and community stats
Knox County, MO, American Community Survey 2020-2024
Median household income
$57,788
Poverty rate
11.9%
Median home value
$101,400
Median rent
$666/mo
Homeownership
85.1%
Bachelor's or higher
15.8%
Median age
40.1
Average commute
19.4 min
Largest reported origins and ancestries: German Americans (1,129), Irish Americans (299), French Americans (217).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
3.4%
Sep 2026, -0.1 pts in a year
Average annual pay
$43,446
874 jobs, 2025
Income per person
$48,985
BEA, 2024
Federal spending
$29.8M
FY 2026, $7,956 per person
PPP loans
$11.3M
537 loans, 1,336 jobs reported
Campaign donations
$12.4K
Itemized, 2026 cycle
How people get to work
Knox County, MO, workers 16 and older. American Community Survey 5-year estimates
- Drove alone62.9%
- Carpooled10.1%
- Public transit1.2%
- Walked3.2%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other0.2%
- Worked from home22.4%
Average one-way commute: 19.4 minutes for people who do not work from home.
Environment and hazard risk
Knox County, MO, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: heat wave
Storm events since 1996
245
Most often hail
July high / Jan low
86° / 18°F
39.5 inches of rain a year
Hazards, floods and storm historyCheck a flood zone1 historic places
Health statistics
Share of adults in Knox County, MO, CDC PLACES estimates
Obesity
39.5%
U.S. 33.3% +6.2 pts
Diabetes
15.1%
U.S. 12.1% +3.0 pts
Smoking
21.2%
U.S. 12.8% +8.4 pts
Uninsured (18-64)
10.7%
U.S. 11.1% about the same
Cities, towns and ZIP codes in Knox County
Population shown
Frequently asked questions
- What is the largest city in Knox County, MO?
- Edina is the largest city or town in Knox County, with about 1,250 residents.
- How many ZIP codes are in Knox County?
- Knox County includes 7 ZIP Code Tabulation Areas, including 63446, 63458, 63460, 63531, 63537.
- What is the population of Knox County, MO?
- About 3,756 people live in Knox County, based on American Community Survey 5-year estimates.
- What counties border Knox County?
- Knox County borders Adair County, Macon County, Lewis County, Clark County, Shelby County, Scotland County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023