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Thomas County, KS
6 cities and towns and 5 ZIP codes in Thomas County, Kansas.
Population
7,885
Land area
1,075sq mi
People per sq mi
7
ZIP codes
5
Cities and towns in Thomas County
Thomas County at a glance
- Thomas County is 80% less dense than Kansas as a whole.
- Households here earn a median of $71,325 a year, 4% less than the Kansas figure of $74,275.
- A typical owner-occupied home is valued at $172,700 (20% below Kansas) and median rent is $752 a month.
- The biggest population centers are Colby (5,387), Brewster (459) and Rexford (146).
Local data for Thomas County, KS
Counts from official public data
Housing and community stats
Thomas County, KS, American Community Survey 2020-2024
Median household income
$71,325
Poverty rate
6.5%
Median home value
$172,700
Prices -3.2% in a year
Median rent
$752/mo
Homeownership
75.2%
Bachelor's or higher
34.6%
Median age
35.3
Average commute
11.7 min
Largest reported origins and ancestries: German Americans (2,753), Irish Americans (806), Mexican Americans (562).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
2.7%
Sep 2026, 0.0 pts in a year
Average annual pay
$50,081
4,102 jobs, 2025
Income per person
$63,921
BEA, 2024
Federal spending
$69.6M
FY 2026, $8,782 per person
PPP loans
$33.2M
917 loans, 3,748 jobs reported
Campaign donations
$40.9K
Itemized, 2026 cycle
How people get to work
Thomas County, KS, workers 16 and older. American Community Survey 5-year estimates
- Drove alone82.4%
- Carpooled4.4%
- Public transit0.0%
- Walked2.9%
- Bicycle0.3%
- Taxi, ride-hailing, motorcycle or other0.4%
- Worked from home9.6%
Average one-way commute: 11.7 minutes for people who do not work from home.
Environment and hazard risk
Thomas County, KS, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: hail
Storm events since 1996
1,094
Most often hail
Flood insurance policies
17
0.4% of homes, county
July high / Jan low
91° / 15°F
20.4 inches of rain a year
Hazards, floods and storm historyCheck a flood zone3 historic places
Health statistics
Share of adults in Thomas County, KS, CDC PLACES estimates
Obesity
35.0%
U.S. 33.3% +1.7 pts
Diabetes
10.2%
U.S. 12.1% -1.9 pts
Smoking
12.7%
U.S. 12.8% about the same
Uninsured (18-64)
8.3%
U.S. 11.1% -2.8 pts
Cities, towns and ZIP codes in Thomas County
Population shown
Frequently asked questions
- What is the largest city in Thomas County, KS?
- Colby is the largest city or town in Thomas County, with about 5,387 residents.
- How many ZIP codes are in Thomas County?
- Thomas County includes 5 ZIP Code Tabulation Areas, including 67701, 67732, 67734, 67743, 67753.
- What is the population of Thomas County, KS?
- About 7,885 people live in Thomas County, based on American Community Survey 5-year estimates.
- What counties border Thomas County?
- Thomas County borders Sherman County, Gove County, Decatur County, Logan County, Rawlins County, Sheridan County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023