Columbia ZIP Codes — Monroe County, IL

There is one unique ZIP code in Columbia, Illinois and it is 62236. Area code: 618.

ZIP codes

60.34

sq mi land

3.01

sq mi water

618

area code

Columbia, IL ZIP code map

About Columbia, IL

Columbia, Illinois is a charming city located in Monroe County. Known for its small-town atmosphere, it offers residents and visitors a friendly community vibe. With a rich history and various local attractions, Columbia is an inviting place for families and individuals alike.

Location & geography

Columbia is situated approximately 20 miles southeast of St. Louis, Missouri, making it accessible for those who commute to the metropolitan area. The city is bordered by other towns such as Waterloo to the north and Columbia also features a diverse terrain comprising 60.34 square miles of land and 3.01 square miles of water. This blend of urban and natural settings provides ample recreational opportunities for residents.

Community & economy

The character of Columbia is defined by its strong sense of community and commitment to local engagement. The city supports various industries, with a focus on retail, healthcare, and education, contributing to its economic stability. Daily life in Columbia often includes community events, outdoor activities, and a thriving local arts scene.

Transportation

Columbia is serviced by major highways, including U.S. Route 3, which facilitates easy travel to surrounding areas. The nearest airport is the Spirit of St. Louis Airport, located about 24 miles away, which provides regional air travel options. Public transportation options are limited, but residents typically rely on personal vehicles for commuting.

History

Columbia was founded in the early 19th century and has evolved over the years into the vibrant city it is today. Initially, agriculture played a significant role in its development, but various industries have since emerged, nurturing the local economy. Notable events in Columbia's history include its growth during the post-war era and its ongoing commitment to community development.

Did you know?

One surprising aspect of Columbia is its designation as a Tree City USA, reflecting the community's dedication to urban forestry and environmental sustainability. Additionally, Columbia is home to several annual festivals that celebrate local culture and history, attracting visitors from the surrounding region.

ZIP codes for Columbia, IL (1)

ZIP code	City	County	Map
62236	Columbia	Monroe	View map

Demographics & statistics

14,630

Population

41.5

Median age

$109,904

Median household income

$49,896

Per capita income

$292,000

Median home value

$1,047

Median monthly rent

85.3%

Home ownership

5.0%

Poverty rate

1.1%

Unemployment

5,052

Housing units

47.8%

Bachelor's or higher

Age distribution

Male Female

430

Under 5

435

442

5–9

447

640

10–14

648

460

15–19

466

189

20–24

192

880

25–34

891

931

35–44

943

976

45–54

989

625

55–59

633

568

60–64

575

633

65–74

642

317

75–84

321

177

85+

180

← Male

Female →

Age summary

Group	Count	%
Under 18	3,716	25.4%
18 and over	10,914	74.6%
65 and over	2,270	15.5%
Median age	41.5 years

Race & ethnicity

White 93.7%

Hispanic or Latino 2.1%

Other race 1.8%

Two or more races 1.5%

Black or African American 0.7%

Asian 0.3%

Group	Count	%
White	13,997	93.7%
Hispanic or Latino	313	2.1%
Other race	266	1.8%
Two or more races	222	1.5%
Black or African American	105	0.7%
Asian	40	0.3%

Household income

Under $10k 3.8%

$10k–$15k 1.0%

$15k–$25k 4.1%

$25k–$35k 3.6%

$35k–$50k 7.1%

$50k–$75k 11.4%

$75k–$100k 12.2%

$100k–$150k 22.9%

$150k–$200k 15.1%

$200k+ 18.8%

Range	% of households
Under $10k	3.8%
$10k–$15k	1.0%
$15k–$25k	4.1%
$25k–$35k	3.6%
$35k–$50k	7.1%
$50k–$75k	11.4%
$75k–$100k	12.2%
$100k–$150k	22.9%
$150k–$200k	15.1%
$200k+	18.8%
Median income	$109,904

Housing

Home values

Under $50k 1.7%

$50k–$100k 1.2%

$100k–$150k 6.3%

$150k–$200k 14.4%

$200k–$300k 28.7%

$300k–$500k 34.9%

$500k–$1M 11.6%

$1M+ 1.2%

Housing overview

Metric	Value
Median home value	$292,000
Median rent / month	$1,047
Owner occupied	85.3%
Renter occupied	14.7%
Vacant	6.3%
Single-family detached	83.8%
Large apartment buildings	1.7%
Mobile homes	1.1%
Median rooms	6.8
Avg household size (owned)	2.79

Year built

Era	%
2020 or later	0.6%
2010–2019	12.8%
2000–2009	20.7%
1990–1999	15.5%
1980–1989	13.8%
1970–1979	9.1%
1960–1969	8.8%
1950–1959	6.0%
1940–1949	5.5%
1939 or earlier	7.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	3.0%
2 bedrooms	21.8%
3 bedrooms	45.0%
4 bedrooms	24.8%
5+ bedrooms	5.4%

Vehicles per household

Vehicles	% of households
No vehicle	3.0%
1 vehicle	25.4%
2 vehicles	42.5%
3 or more	29.1%

Heating fuel

Fuel type	%
Utility gas	46.8%
Electricity	38.3%
Propane / LP gas	14.7%
Fuel oil	0.2%

Households & families

Household type	Count	%
Married-couple family	3,409	62.1%
Cohabiting couple	228	4.2%
Male householder, no spouse	643	11.7%
Female householder, no spouse	1,207	22.0%
Households with children under 18	2,072	37.8%
Households with seniors (65+)	1,568	28.6%
Average household size	2.65

Marital status

Status	Male	Female
Never married	27.8%	21.5%
Married	63.5%	60.1%
Separated	0.3%	0.7%
Widowed	1.6%	7.6%
Divorced	6.7%	10.2%

Education

Less than 9th grade 0.5%

Some HS, no diploma 2.5%

HS graduate 18.9%

Some college, no degree 20.0%

Associate's degree 10.3%

Bachelor's degree 27.8%

Graduate / professional 20.0%

Metric	%
HS diploma or higher	97.0%
Bachelor's or higher	47.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	268	7.5%
Kindergarten	248	7.0%
Elementary school	1,570	44.2%
High school	905	25.5%
College / grad school	561	15.8%

Employment

Industry of employment

Education & healthcare 26.9%

Professional & management 14.2%

Manufacturing 9.7%

Finance & real estate 7.9%

Retail trade 7.8%

Arts, food & hospitality 7.1%

Construction 6.2%

Other services 5.6%

Public administration 4.1%

Transportation & utilities 3.4%

Agriculture & mining 2.9%

Information 2.1%

Wholesale trade 2.0%

Occupation

Category	%
Management, business & arts	51.9%
Service	14.5%
Sales & office	21.2%
Natural resources & construction	6.8%
Production & transportation	5.6%

Employment type

Type	%
Private sector	80.4%
Government	14.2%
Self-employed	5.4%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	85.9%
Carpool	4.0%
Public transit	0.2%
Walk	0.3%
Other means	0.0%
Avg commute (minutes)	26.1

Poverty

All people 5.0%

Under 18 years 6.3%

18 and over 4.6%

Married-couple families 2.1%

Female-led households 8.9%

Income support

Source	% of households
Social Security	29.8%
Retirement income	29.0%
Supplemental Security	3.5%
Cash public assistance	1.6%
Food stamps / SNAP	5.5%

Health indicators

Condition	%
High blood pressure	29.9%
High cholesterol	32.5%
Heart disease	5.4%
Stroke	2.4%
Asthma	9.0%
Arthritis	23.9%
Kidney disease	2.4%
Pulmonary disease	5.4%
Cancer	7.0%

Behavior / access	%
Binge drinking	16.3%
No physical activity	19.1%
Less than 7 hrs sleep	29.8%
Fair or poor health	10.2%
Poor mental health	11.5%
Poor physical health	7.8%
No health insurance	7.8%
Visited doctor (checkup)	77.1%
Visited dentist	73.1%
Cholesterol screening	91.5%
Teeth loss	10.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	818	7.5%

Disability	%
Any disability	9.2%
Under 18	2.8%
18–64 years	7.5%
65 and over	26.9%

Health insurance coverage

Type	%
Private insurance	86.2%
Public insurance	24.3%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	13,765	94.1%
Spanish	68	0.5%
Other Indo-European	68	0.5%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	14,460	98.8%
Born in same state	14,395	98.4%
Born in different state	6,959	47.6%
Foreign born	65	0.4%
Naturalized citizen	170	1.2%
Not a US citizen	160	94.1%

Ancestry

Ancestry	Count	%
French	1,805	12.3%
Italian	1,644	11.2%
Arab	955	6.5%
Polish	201	1.4%
Dutch	96	0.7%

Ancestry	Count	%
English	84	0.6%
Norwegian	73	0.5%
Irish	56	0.4%
German	21	0.1%

Technology access

Metric	% of households
Computer access	37.5%
Internet access	96.2%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Columbia, IL have?

Columbia, IL has one ZIP code: 62236. Each ZIP code serves a distinct delivery area within the city and surrounding region.