Checked
Audrain County, MO
8 cities and towns and 8 ZIP codes in Audrain County, Missouri.
Population
24,548
Land area
692sq mi
People per sq mi
35
ZIP codes
8
Cities and towns in Audrain County
Audrain County at a glance
- Audrain County is 61% less dense than Missouri as a whole.
- The median household income is $59,448, 16% below the Missouri median of $70,702.
- A typical owner-occupied home is valued at $143,100 (38% below Missouri) and median rent is $693 a month.
- Its largest cities are Mexico (11,477), Vandalia (3,140) and Laddonia (533).
Local data for Audrain County, MO
Counts from official public data
Housing and community stats
Audrain County, MO, American Community Survey 2020-2024
Median household income
$59,448
Poverty rate
17.8%
Median home value
$143,100
Prices +0.3% in a year
Median rent
$693/mo
Homeownership
71.8%
Bachelor's or higher
16.8%
Median age
40.2
Average commute
21.7 min
Largest reported origins and ancestries: German Americans (4,497), Irish Americans (2,597), Mexican Americans (660).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
3.8%
Aug 2026, -0.6 pts in a year
Average annual pay
$50,122
7,910 jobs, 2025
Income per person
$49,041
BEA, 2024
Federal spending
$178M
FY 2026, $7,115 per person
PPP loans
$34.12M
917 loans, 4,236 jobs reported
Campaign donations
$64.89K
Itemized, 2026 cycle
How people get to work
Audrain County, MO, workers 16 and older. American Community Survey 5-year estimates
- Drove alone83.6%
- Carpooled8.3%
- Public transit0.3%
- Walked2.6%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other1.4%
- Worked from home3.8%
Average one-way commute: 21.7 minutes for people who do not work from home.
Environment and hazard risk
Audrain County, MO, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: heat wave
Storm events since 1996
369
Most often thunderstorm wind
Flood insurance policies
32
0.3% of homes, county
July high / Jan low
88° / 19°F
43.5 inches of rain a year
Hazards, floods and storm historyCheck a flood zone3 historic places
Health statistics
Share of adults in Audrain County, MO, CDC PLACES estimates
Obesity
40.0%
U.S. 33.3% +6.7 pts
Diabetes
14.1%
U.S. 12.1% +2.0 pts
Smoking
20.2%
U.S. 12.8% +7.4 pts
Uninsured (18-64)
10.0%
U.S. 11.1% -1.1 pts
Cities, towns and ZIP codes in Audrain County
Population shown
Frequently asked questions
- What is the largest city in Audrain County, MO?
- Mexico is the largest city or town in Audrain County, with about 11,477 residents.
- How many ZIP codes are in Audrain County?
- Audrain County includes 8 ZIP Code Tabulation Areas, including 63345, 63352, 63382, 65232, 65264.
- What is the population of Audrain County, MO?
- About 24,548 people live in Audrain County, based on American Community Survey 5-year estimates.
- What counties border Audrain County?
- Audrain County borders Boone County, Callaway County, Randolph County, Pike County, Montgomery County, Ralls County, Monroe County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023