O Fallon ZIP Codes — Saint Clair County, IL

There is one unique ZIP code in O Fallon, Illinois and it is 62269. Area code: 618.

ZIP codes

29.83

sq mi land

0.30

sq mi water

618

area code

O Fallon, IL ZIP code map

About O Fallon, IL

O'Fallon is a vibrant city located in the state of Illinois, specifically in Saint Clair County. Known for its friendly community atmosphere, O'Fallon offers a blend of suburban convenience and small-town charm. It provides residents with various amenities, parks, and recreational opportunities.

Location & geography

O'Fallon is situated approximately 20 miles east of St. Louis, Missouri, making it easily accessible for commuters and those seeking city amenities. The city spans a land area of 59.66 square miles and includes a small water area of 0.59 square miles. Its terrain features a mix of residential neighborhoods and green spaces, providing a serene environment for its inhabitants.

Community & economy

The character of O'Fallon is defined by its strong sense of community and active civic engagement. The local economy benefits from a mix of industries, including retail and service sectors, contributing to the town's steady growth. Daily life in O'Fallon is complemented by family-friendly events, festivals, and community gatherings that foster a close-knit atmosphere.

Transportation

O'Fallon is serviced by major highways, including Interstate 64 and Interstate 255, making travel to neighboring cities efficient and convenient. The nearest named airports include St. Louis Lambert International Airport, located about 30 miles away, providing both domestic and international flights. Local transit options are also available, facilitating movement within the city.

History

O'Fallon was originally established in the early 19th century, becoming a key area for agriculture and later transitioning into a suburban community as St. Louis expanded. The city's growth has been influenced by its proximity to major urban centers, with notable events such as the development of local parks and community infrastructure supporting its evolution. As O'Fallon has grown, it has developed a reputation for quality schools and thriving neighborhoods.

Did you know?

One surprising fact about O'Fallon is that it has been recognized for its commitment to public parks and recreation, having over 20 parks within the city limits. Additionally, O'Fallon is home to a popular annual event known as the O'Fallon Heritage and Freedom Fest, celebrating the community's heritage with various activities and entertainment.

ZIP codes for O Fallon, IL (1)

ZIP code	City	County	Map
62269	O Fallon	Saint Clair	View map

Demographics & statistics

35,467

Population

37.3

Median age

$99,258

Median household income

$46,909

Per capita income

$260,400

Median home value

$1,249

Median monthly rent

73.8%

Home ownership

3.2%

Poverty rate

3.4%

Unemployment

10,779

Housing units

51.0%

Bachelor's or higher

Age distribution

Male Female

1,196

Under 5

1,240

1,294

5–9

1,342

1,537

10–14

1,595

1,234

15–19

1,280

738

20–24

766

2,133

25–34

2,213

2,490

35–44

2,583

2,347

45–54

2,435

842

55–59

873

846

60–64

877

1,607

65–74

1,666

800

75–84

830

345

85+

358

← Male

Female →

Age summary

Group	Count	%
Under 18	9,827	27.7%
18 and over	25,640	72.3%
65 and over	5,606	15.8%
Median age	37.3 years

Race & ethnicity

White 70.2%

Black or African American 12.4%

Two or more races 9.2%

Hispanic or Latino 3.9%

Asian 3.5%

Other race 0.7%

Group	Count	%
White	25,927	70.2%
Black or African American	4,596	12.4%
Two or more races	3,381	9.2%
Hispanic or Latino	1,457	3.9%
Asian	1,280	3.5%
Other race	267	0.7%

Household income

Under $10k 2.4%

$10k–$15k 1.3%

$15k–$25k 4.0%

$25k–$35k 5.1%

$35k–$50k 9.4%

$50k–$75k 16.3%

$75k–$100k 12.0%

$100k–$150k 20.5%

$150k–$200k 12.3%

$200k+ 16.6%

Range	% of households
Under $10k	2.4%
$10k–$15k	1.3%
$15k–$25k	4.0%
$25k–$35k	5.1%
$35k–$50k	9.4%
$50k–$75k	16.3%
$75k–$100k	12.0%
$100k–$150k	20.5%
$150k–$200k	12.3%
$200k+	16.6%
Median income	$99,258

Housing

Home values

Under $50k 4.0%

$50k–$100k 6.4%

$100k–$150k 8.8%

$150k–$200k 12.9%

$200k–$300k 32.3%

$300k–$500k 31.9%

$500k–$1M 3.6%

$1M+ 0.2%

Housing overview

Metric	Value
Median home value	$260,400
Median rent / month	$1,249
Owner occupied	73.8%
Renter occupied	26.2%
Vacant	5.9%
Single-family detached	72.1%
Large apartment buildings	5.3%
Mobile homes	4.2%
Median rooms	6.8
Avg household size (owned)	2.87

Year built

Era	%
2020 or later	0.5%
2010–2019	17.8%
2000–2009	22.4%
1990–1999	21.0%
1980–1989	12.6%
1970–1979	10.2%
1960–1969	5.5%
1950–1959	4.1%
1940–1949	1.0%
1939 or earlier	5.0%

Bedrooms

Size	% of units
No bedroom (studio)	3.1%
1 bedroom	7.5%
2 bedrooms	17.5%
3 bedrooms	31.5%
4 bedrooms	31.1%
5+ bedrooms	9.4%

Vehicles per household

Vehicles	% of households
No vehicle	4.8%
1 vehicle	28.2%
2 vehicles	44.5%
3 or more	22.5%

Heating fuel

Fuel type	%
Utility gas	59.5%
Electricity	37.1%
Propane / LP gas	2.1%
Fuel oil	0.1%
Wood	0.4%
Solar	0.1%
No fuel used	0.6%

Households & families

Household type	Count	%
Married-couple family	7,997	59.4%
Cohabiting couple	525	3.9%
Male householder, no spouse	1,772	13.2%
Female householder, no spouse	3,164	23.5%
Households with children under 18	5,146	38.2%
Households with seniors (65+)	4,123	30.6%
Average household size	2.64

Marital status

Status	Male	Female
Never married	28.1%	22.4%
Married	62.3%	58.8%
Separated	0.6%	1.9%
Widowed	2.2%	7.8%
Divorced	6.8%	9.1%

Education

Less than 9th grade 1.6%

Some HS, no diploma 2.2%

HS graduate 14.1%

Some college, no degree 18.9%

Associate's degree 12.1%

Bachelor's degree 28.6%

Graduate / professional 22.4%

Metric	%
HS diploma or higher	96.1%
Bachelor's or higher	51.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	694	6.6%
Kindergarten	744	7.1%
Elementary school	4,504	42.8%
High school	2,231	21.2%
College / grad school	2,345	22.3%

Employment

Industry of employment

Education & healthcare 24.3%

Professional & management 14.7%

Retail trade 10.6%

Finance & real estate 9.6%

Public administration 8.6%

Arts, food & hospitality 7.6%

Manufacturing 7.2%

Transportation & utilities 7.0%

Other services 4.0%

Construction 3.2%

Information 1.5%

Wholesale trade 1.4%

Agriculture & mining 0.3%

Occupation

Category	%
Management, business & arts	55.3%
Service	9.5%
Sales & office	19.1%
Natural resources & construction	5.6%
Production & transportation	10.5%

Employment type

Type	%
Private sector	78.6%
Government	18.7%
Self-employed	2.4%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	77.5%
Carpool	6.1%
Public transit	0.5%
Walk	1.1%
Other means	1.0%
Avg commute (minutes)	25.6

Poverty

All people 3.2%

Under 18 years 4.1%

18 and over 2.9%

Married-couple families 0.4%

Female-led households 8.2%

Income support

Source	% of households
Social Security	28.2%
Retirement income	34.5%
Supplemental Security	3.2%
Cash public assistance	1.9%
Food stamps / SNAP	7.1%

Health indicators

Condition	%
High blood pressure	29.7%
High cholesterol	28.4%
Heart disease	4.4%
Stroke	2.2%
Asthma	9.3%
Arthritis	21.3%
Kidney disease	2.2%
Pulmonary disease	4.6%
Cancer	5.7%

Behavior / access	%
Binge drinking	16.8%
No physical activity	18.5%
Less than 7 hrs sleep	31.4%
Fair or poor health	10.0%
Poor mental health	11.8%
Poor physical health	7.4%
No health insurance	8.3%
Visited doctor (checkup)	78.7%
Visited dentist	74.7%
Cholesterol screening	90.9%
Teeth loss	9.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	4,524	18.2%

Disability	%
Any disability	10.1%
Under 18	4.3%
18–64 years	7.7%
65 and over	28.5%

Health insurance coverage

Type	%
Private insurance	85.0%
Public insurance	28.0%
Uninsured under 19	2.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	33,031	93.1%
Spanish	493	1.5%
Other Indo-European	259	0.8%
Asian & Pacific Islander	24	0.1%
Other languages	184	0.6%

Place of birth & citizenship

Origin	Count	%
Native born (US)	34,087	96.1%
Born in same state	33,007	93.1%
Born in different state	16,926	47.7%
Foreign born	1,080	3.0%
Naturalized citizen	1,380	3.9%
Not a US citizen	904	65.5%

Ancestry

Ancestry	Count	%
French	4,922	13.9%
Italian	3,718	10.5%
Arab	1,150	3.2%
Polish	505	1.4%
English	441	1.2%

Ancestry	Count	%
German	129	0.4%
Irish	125	0.4%
Dutch	80	0.2%
Norwegian	68	0.2%

Technology access

Metric	% of households
Computer access	37.9%
Internet access	97.1%

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

Frequently asked questions

What ZIP codes does O Fallon, IL have?

O Fallon, IL has one ZIP code: 62269. Each ZIP code serves a distinct delivery area within the city and surrounding region.