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Columbia, IL
City in Monroe County, Illinois. ZIP codes: 62236.
Population
11,127
Land area
10.6sq mi
People per sq mi
1,055
ZIP codes
1
Columbia and its ZIP codes
Columbia at a glance
- Columbia is about 4.6 times as dense as Illinois as a whole.
- By population, it ranks 209th among 1,445 cities and towns in Illinois.
- The median household income is $107,606, 29% above the Illinois median of $83,390.
- A typical owner-occupied home is valued at $293,000 (11% above Illinois) and median rent is $1,128 a month.
Local data for Columbia, IL
Counts from official public data
Housing and community stats
Columbia, IL, American Community Survey 2020-2024
Median household income
$107,606
Poverty rate
5.4%
Median home value
$293,000
Median rent
$1,128/mo
Homeownership
82.4%
Bachelor's or higher
49.0%
Median age
42.4
Average commute
26.4 min
Largest reported origins and ancestries: German Americans (4,454), Irish Americans (1,350), Italian Americans (576).
Economy and federal money
Jobs, pay, income and spending are for Monroe County. PPP loans are for Columbia.
Unemployment rate
2.5%
Aug 2026, -0.8 pts in a year
Average annual pay
$51,694
8,577 jobs, 2025
Income per person
$77,807
BEA, 2024
Federal spending
$257M
FY 2026, $7,342 per person
PPP loans
$38.5M
579 loans, 5,145 jobs reported
How people get to work
Columbia, IL, workers 16 and older. American Community Survey 5-year estimates
- Drove alone82.0%
- Carpooled2.8%
- Public transit0.0%
- Walked1.8%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other0.9%
- Worked from home12.5%
Average one-way commute: 26.4 minutes for people who do not work from home.
Environment and hazard risk
Columbia, IL, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: heat wave
Storm events since 1996
387
Countywide, mostly hail
Flood insurance policies
135
0.9% of homes, county
July high / Jan low
89° / 22°F
42.8 inches of rain a year
Hazards, floods and storm historyCheck a flood zone1 historic places
Health statistics
Share of adults in Columbia, IL, CDC PLACES estimates
Obesity
35.1%
U.S. 33.3% +1.8 pts
Diabetes
9.4%
U.S. 12.1% -2.7 pts
Smoking
10.7%
U.S. 12.8% -2.1 pts
Uninsured (18-64)
5.3%
U.S. 11.1% -5.8 pts
ZIP codes in Columbia
1 in or overlapping Columbia. Population shown
Cities near Columbia
| Name | Distance | Land area (sq mi) |
|---|---|---|
| DupoVillage | 4.3 mi | 6.4 |
| Oakville, MOCensus-designated place | 5.9 mi | 15.9 |
| East CarondeletVillage | 5.9 mi | 1.2 |
| MillstadtVillage | 6.3 mi | 3.6 |
| Lemay, MOCensus-designated place | 6.6 mi | 4.1 |
| Mehlville, MOCensus-designated place | 6.8 mi | 7.5 |
| Bella Villa, MOCity | 7.5 mi | 0.1 |
| Cahokia HeightsCity | 7.8 mi | 15.8 |
| St. George, MOCensus-designated place | 8.1 mi | 0.2 |
| Green Park, MOCity | 8.4 mi | 1.3 |
| WaterlooCity | 8.4 mi | 8.3 |
| Wilbur Park, MOVillage | 8.8 mi | 0.1 |
| Affton, MOCensus-designated place | 9 mi | 4.6 |
| Concord, MOCensus-designated place | 9.1 mi | 5.5 |
| Lakeshire, MOCity | 9.2 mi | 0.2 |
| SaugetVillage | 9.2 mi | 4.6 |
Frequently asked questions
- What county is Columbia, IL in?
- Columbia is in Monroe County, Illinois.
- What ZIP codes are in Columbia, IL?
- ZIP codes in or overlapping Columbia include 62236.
- What is the population of Columbia, IL?
- About 11,127 people live in Columbia, based on American Community Survey 5-year estimates.
- What cities are near Columbia?
- Nearby places include Dupo (4.3 mi), Oakville, MO (5.9 mi), East Carondelet (5.9 mi), Millstadt (6.3 mi), Lemay, MO (6.6 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023