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Dallas County, MO
3 cities and towns and 7 ZIP codes in Dallas County, Missouri.
Population
17,551
Land area
541sq mi
People per sq mi
32
ZIP codes
7
Cities and towns in Dallas County
Dallas County at a glance
- Dallas County is 64% less dense than Missouri as a whole.
- Households here earn a median of $53,464 a year, 24% less than the Missouri figure of $70,702.
- A typical owner-occupied home is valued at $190,300 (17% below Missouri) and median rent is $642 a month.
- The biggest population centers are Buffalo (3,417), Urbana (441) and Louisburg (141).
Local data for Dallas County, MO
Counts from official public data
Housing and community stats
Dallas County, MO, American Community Survey 2020-2024
Median household income
$53,464
Poverty rate
20.5%
Median home value
$190,300
Prices +3.8% in a year
Median rent
$642/mo
Homeownership
75.9%
Bachelor's or higher
16.4%
Median age
41.7
Average commute
33.3 min
Largest reported origins and ancestries: German Americans (2,637), Irish Americans (1,322), Dutch Americans (394).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
3.9%
Sep 2026, -0.2 pts in a year
Average annual pay
$37,783
2,849 jobs, 2025
Income per person
$44,136
BEA, 2024
Federal spending
$119M
FY 2026, $6,965 per person
PPP loans
$12.5M
901 loans, 1,816 jobs reported
Campaign donations
$57.9K
Itemized, 2026 cycle
How people get to work
Dallas County, MO, workers 16 and older. American Community Survey 5-year estimates
- Drove alone73.8%
- Carpooled15.1%
- Public transit0.0%
- Walked0.0%
- Bicycle0.8%
- Taxi, ride-hailing, motorcycle or other4.2%
- Worked from home6.0%
Average one-way commute: 33.3 minutes for people who do not work from home.
Environment and hazard risk
Dallas County, MO, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: ice storm
Storm events since 1996
589
Most often thunderstorm wind
Flood insurance policies
6
0.1% of homes, county
July high / Jan low
89° / 20°F
45.3 inches of rain a year
Hazards, floods and storm historyCheck a flood zone1 historic places
Health statistics
Share of adults in Dallas County, MO, CDC PLACES estimates
Obesity
39.5%
U.S. 33.3% +6.2 pts
Diabetes
14.9%
U.S. 12.1% +2.8 pts
Smoking
21.4%
U.S. 12.8% +8.6 pts
Uninsured (18-64)
10.2%
U.S. 11.1% -0.9 pts
Cities, towns and ZIP codes in Dallas County
Population shown
Frequently asked questions
- What is the largest city in Dallas County, MO?
- Buffalo is the largest city or town in Dallas County, with about 3,417 residents.
- How many ZIP codes are in Dallas County?
- Dallas County includes 7 ZIP Code Tabulation Areas, including 65590, 65622, 65644, 65685, 65764.
- What is the population of Dallas County, MO?
- About 17,551 people live in Dallas County, based on American Community Survey 5-year estimates.
- What counties border Dallas County?
- Dallas County borders Greene County, Camden County, Webster County, Laclede County, Polk County, Hickory County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023