Checked
Oregon County, MO
4 cities and towns and 5 ZIP codes in Oregon County, Missouri.
Population
8,673
Land area
790sq mi
People per sq mi
11
ZIP codes
5
Cities and towns in Oregon County
Oregon County at a glance
- Oregon County is 88% less dense than Missouri as a whole.
- Households here earn a median of $43,069 a year, 39% less than the Missouri figure of $70,702.
- A typical owner-occupied home is valued at $113,300 (51% below Missouri) and median rent is $639 a month.
- The biggest population centers are Thayer (2,333), Alton (744) and Koshkonong (198).
Local data for Oregon County, MO
Counts from official public data
Housing and community stats
Oregon County, MO, American Community Survey 2020-2024
Median household income
$43,069
Poverty rate
23.6%
Median home value
$113,300
Prices +9.3% in a year
Median rent
$639/mo
Homeownership
74.9%
Bachelor's or higher
12.6%
Median age
44.5
Average commute
23.0 min
Largest reported origins and ancestries: German Americans (1,084), Irish Americans (1,033), French Americans (94).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
3.9%
Aug 2026, -0.9 pts in a year
Average annual pay
$38,136
2,556 jobs, 2025
Income per person
$48,844
BEA, 2024
Federal spending
$78.7M
FY 2026, $9,112 per person
PPP loans
$11.7M
603 loans, 1,884 jobs reported
Campaign donations
$24.8K
Itemized, 2026 cycle
How people get to work
Oregon County, MO, workers 16 and older. American Community Survey 5-year estimates
- Drove alone76.4%
- Carpooled12.2%
- Public transit0.8%
- Walked0.5%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other0.6%
- Worked from home9.5%
Average one-way commute: 23.0 minutes for people who do not work from home.
Environment and hazard risk
Oregon County, MO, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: earthquake
Storm events since 1996
395
Most often hail
Flood insurance policies
6
0.1% of homes, county
July high / Jan low
88° / 22°F
47.2 inches of rain a year
Hazards, floods and storm historyCheck a flood zone1 historic places
Health statistics
Share of adults in Oregon County, MO, CDC PLACES estimates
Obesity
41.1%
U.S. 33.3% +7.8 pts
Diabetes
16.5%
U.S. 12.1% +4.4 pts
Smoking
22.8%
U.S. 12.8% +10.0 pts
Uninsured (18-64)
10.9%
U.S. 11.1% about the same
Cities, towns and ZIP codes in Oregon County
Population shown
Frequently asked questions
- What is the largest city in Oregon County, MO?
- Thayer is the largest city or town in Oregon County, with about 2,333 residents.
- How many ZIP codes are in Oregon County?
- Oregon County includes 5 ZIP Code Tabulation Areas, including 65606, 65690, 65692, 65778, 65791.
- What is the population of Oregon County, MO?
- About 8,673 people live in Oregon County, based on American Community Survey 5-year estimates.
- What counties border Oregon County?
- Oregon County borders Howell County, Randolph County, AR, Sharp County, AR, Fulton County, AR, Ripley County, Shannon County, Carter County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023