Zip code 63366: O Fallon, Missouri

Q: What city is zip code 63366?

63366 is assigned to O Fallon, Missouri. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 63366 in?

63366 is in St. Charles County, Missouri.

Q: What is the population of 63366?

About 54,769 people live in 63366, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 63366?

The median household income in 63366 is $100,621.

Q: What zip codes are near 63366?

The closest zip codes to 63366 are 63369, 63367, 63376, 63368, 63385.

Residential delivery areaSt. Charles CountyCentral Time

Population

54,769

Median household income

$101K

U.S. $81K

Median home value

$305K

U.S. $333K

Median rent

$1,302/mo

U.S. $1,413

Median age

40.4

U.S. 38.9

Land area

69 sq mi

791 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 63366

63366 is a suburban zip code in O Fallon, Missouri (St. Charles County), covering 69 sq mi of land. About 54,769 people live here, or 791 per square mile. The median resident is 40.4 years old, compared with 38.9 nationally.

The median household earns $100,621 a year, 25% above the national median of $80,734. 7% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $304,500, or 3.0 years of median household income (U.S.: 4.1 years), which makes homes relatively affordable for local earners. 82% of occupied homes are lived in by their owners, and renters pay a median of $1,302 a month.

33% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 24.9 minutes each way, and 16% of workers work from home. The most common jobs among working residents are in management; office and administrative support; and sales.

How 63366 compares

Sorted from highest to lowest national percentile

Population54,769
85th
U.S. 334,922,499 · MO 6,191,8145th of 968 in MO
Homeownership rate82.1%
83rd
StrengthU.S. 65.2% · MO 68.1%380th of 966 in MO
Tech workers5.5%
83rd
U.S. 3.8% · MO 3.4%69th of 967 in MO
Median household income$100,621
72nd
U.S. $80,734 · MO $70,70270th of 934 in MO
Broadband access94.6%
72nd
U.S. 91% · MO 89.3%97th of 966 in MO
Median earnings per worker$55,508
68th
U.S. $49,666 · MO $45,780105th of 960 in MO
Veterans7.1%
67th
U.S. 6.2% · MO 7.3%526th of 968 in MO
Work from home16.3%
66th
U.S. 15.1% · MO 13%185th of 967 in MO
Per capita income$45,718
64th
U.S. $44,673 · MO $39,695111th of 968 in MO
Median age40.4
60th
U.S. 38.9 · MO 39549th of 968 in MO
Bachelor's degree or higher33.3%
53rd
U.S. 35.7% · MO 32.4%146th of 965 in MO
Residents 65 and older16.6%
50th
U.S. 17.2% · MO 17.9%659th of 968 in MO
Residents under 1821.9%
48th
U.S. 22% · MO 22.3%536th of 968 in MO
Healthcare workers9.2%
46th
U.S. 9.7% · MO 10.4%488th of 967 in MO
Median home value$304,500
44th
U.S. $332,700 · MO $230,30098th of 917 in MO
Median gross rent$1,302
43rd
U.S. $1,413 · MO $1,03368th of 783 in MO
Average commute24.9 min
42nd
U.S. 26.4 min · MO 23.5 min533rd of 934 in MO
Population density791/sq mi
40th
U.S. 95/sq mi · MO 90/sq mi139th of 968 in MO
Uninsured rate5.2%
35th
U.S. 8.4% · MO 8.8%732nd of 968 in MO
Rent-burdened renters46.8%
35th
U.S. 51.1% · MO 45.6%302nd of 908 in MO
Foreign-born residents5.5%
32nd
U.S. 14.1% · MO 4.5%123rd of 968 in MO
Diversity index35.4
30th
U.S. 61.4 · MO 40.1168th of 968 in MO
Poverty rate7%
25th
U.S. 12.5% · MO 12.6%749th of 966 in MO
Unemployment rate3.5%
24th
U.S. 5.2% · MO 4%425th of 967 in MO
Government workers10.7%
24th
U.S. 14.5% · MO 13.2%625th of 967 in MO
Self-employed workers7.3%
23rd
U.S. 10% · MO 9%708th of 967 in MO
Income inequality (Gini)0.397
19th
StrengthU.S. 0.483 · MO 0.465570th of 964 in MO
Housing vacancy2.5%
7th
U.S. 10.1% · MO 11.2%900th of 966 in MO

Measure	63366	St. Charles	MO	U.S.	National percentile	Rank in MO
Population	54,769	414,535	6,191,814	334,922,499	85th	5th of 968
Homeownership rateStrength	82.1%	80.5%	68.1%	65.2%	83rd	380th of 966
Tech workers	5.5%	5.2%	3.4%	3.8%	83rd	69th of 967
Median household income	$100,621	$104,692	$70,702	$80,734	72nd	70th of 934
Broadband access	94.6%	95.1%	89.3%	91%	72nd	97th of 966
Median earnings per worker	$55,508	$59,077	$45,780	$49,666	68th	105th of 960
Veterans	7.1%	6.6%	7.3%	6.2%	67th	526th of 968
Work from home	16.3%	18%	13%	15.1%	66th	185th of 967
Per capita income	$45,718	$51,051	$39,695	$44,673	64th	111th of 968
Median age	40.4	39.8	39	38.9	60th	549th of 968
Bachelor's degree or higher	33.3%	42.7%	32.4%	35.7%	53rd	146th of 965
Residents 65 and older	16.6%	17%	17.9%	17.2%	50th	659th of 968
Residents under 18	21.9%	22.5%	22.3%	22%	48th	536th of 968
Healthcare workers	9.2%	9%	10.4%	9.7%	46th	488th of 967
Median home value	$304,500	$320,800	$230,300	$332,700	44th	98th of 917
Median gross rent	$1,302	$1,370	$1,033	$1,413	43rd	68th of 783
Average commute	24.9 min	24.5 min	23.5 min	26.4 min	42nd	533rd of 934
Population density	791/sq mi	740/sq mi	90/sq mi	95/sq mi	40th	139th of 968
Uninsured rate	5.2%	4.2%	8.8%	8.4%	35th	732nd of 968
Rent-burdened renters	46.8%	42.4%	45.6%	51.1%	35th	302nd of 908
Foreign-born residents	5.5%	4.5%	4.5%	14.1%	32nd	123rd of 968
Diversity index	35.4	30.5	40.1	61.4	30th	168th of 968
Poverty rate	7%	5.2%	12.6%	12.5%	25th	749th of 966
Unemployment rate	3.5%	2.9%	4%	5.2%	24th	425th of 967
Government workers	10.7%	10.2%	13.2%	14.5%	24th	625th of 967
Self-employed workers	7.3%	7.4%	9%	10%	23rd	708th of 967
Income inequality (Gini)Strength	0.397	0.408	0.465	0.483	19th	570th of 964
Housing vacancy	2.5%	3.5%	11.2%	10.1%	7th	900th of 966

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

16%

5–17

18–24

12%

25–34

15%

35–44

14%

45–54

13%

55–64

11%

65–74

75+

Median age

40.4

Under 18

21.9%

65 and over

16.6%

Race and ethnicity

White80%
Black5%
Hispanic6%
Asian3%
Native American0.0%
Pacific Islander0%
Other0.3%
Multiracial5%

Diversity index

35.4

U.S. 61.4

Foreign-born

5.5%

U.S. 14.1%

Born in state

69.8%

Language spoken at home (households)

English only

93%

Spanish

Other Indo-European

Asian / Pacific

Other

0.3%

Households

Households: 20,967
Average household size: 2.6
Family households: 71.2%
Married couples: 56.3%
Living alone: 24.5%
Veterans (of adults): 7.1%
Male / female: 50% / 50%

Income and poverty

Household income distribution

<$25k

$25–50k

14%

$50–75k

15%

$75–100k

12%

$100–150k

23%

$150–200k

14%

$200k+

13%

Median household income

63366

$100,621

St. Charles Co.

$104,692

Missouri

$70,702

United States

$80,734

Per capita income

$45,718

U.S. $44,673

Poverty rate

U.S. 12.5%

Households earning $150K+

27.4%

U.S. 23%

Income inequality (Gini)

0.397

U.S. 0.483

Housing

Median home value

63366

$304,500

St. Charles Co.

$320,800

Missouri

$230,300

United States

$332,700

Median gross rent

63366

$1,302

St. Charles Co.

$1,370

Missouri

$1,033

United States

$1,413

Types of housing

Single-family

85%

2–4 units

5–19 units

20+ units

Mobile home

Boat, RV, van

Housing units: 21,514
Owner-occupied: 82.1%
Vacant: 2.5%
Median year built: 1998
Median rooms: 6.1
Renters paying 30%+ of income: 46.8%
Renters paying 50%+ of income: 25%
Home value to income: 3.0× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

76%

Carpooled

Transit

0.0%

Walked

Bicycle

0.1%

Worked from home

16%

Other

Commute time (one way)

<10 min

10%

10–19

26%

20–29

24%

30–44

29%

45–59

60+

Average commute

24.9 min

U.S. 26.4 min

Unemployment

3.5%

U.S. 5.2%

In labor force

70.4%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management

13%

Office and admin

11%

Sales

11%

Healthcare

Construction and repair

Business and finance

Transportation and moving

Education

Computer and math

Cleaning and personal care

Food service

Engineering and science

Production

Arts, media and sports

Police and fire

Legal and social services

Farming, fishing and forestry

0.1%

Industries

Manufacturing

13%

Health care and social assistance

13%

Retail

11%

Construction

10%

Finance, insurance and real estate

Education

Professional and technical services

Restaurants and hotels

Other services

Transportation, warehousing and utilities

Admin, support and management

Public administration

Wholesale

Arts and recreation

Information

Agriculture and mining

Median earnings per worker

$55,508

U.S. $49,666

Self-employed

7.3%

U.S. 10%

Government workers

10.7%

U.S. 14.5%

Nonprofit workers

8.3%

U.S. 8.8%

Median earnings by type of work

Type of work	63366	U.S.
Management, business, science and arts	$74,247	$74,888
Service	$29,414	$26,804
Sales and office	$42,856	$40,476
Construction and maintenance	$59,390	$49,199
Production and transportation	$40,399	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

29%

Some college

24%

Associate's

Bachelor's

21%

Graduate

12%

High school graduate or higher: 94.3%
Bachelor's degree or higher: 33.3%
Graduate or professional degree: 11.9%
Households with broadband: 94.6%
Cable, fiber or DSL: 83.9%
No internet access: 4.1%
Without health insurance: 5.2%
Limited-English households: 0.3%

Geography

City (USPS): O Fallon
State: Missouri
County: St. Charles County
Center point: 38.8575° N, 90.7253° W
Land area: 69 sq mi
Water area: 1.3 sq mi
Time zone: Central Time (UTC-6, UTC-5 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

O'Fallon23% of zip
St. Paul10% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 63366

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
63369	Old Monroe, MO	6.2 mi	2,822	$96,250	$339,400
63367	Lake Saint Louis, MO	6.9 mi	29,725	$137,648	$409,100
63376	Saint Peters, MO	7.2 mi	74,962	$96,393	$275,400
63368	O Fallon, MO	7.3 mi	46,966	$124,297	$349,200
63385	Wentzville, MO	8.2 mi	51,330	$112,199	$347,200
62036	Golden Eagle, IL	8.4 mi	574	$103,409	$229,400
63338	Cottleville, MO · PO box	8.6 mi	—	—	—
63389	Winfield, MO	10 mi	7,616	$98,393	$236,900
62013	Brussels, IL	11 mi	578	$72,750	$144,500
63362	Moscow Mills, MO	11 mi	9,930	$88,977	$235,900
63304	Saint Charles, MO	11 mi	43,195	$114,442	$351,000
63346	Flinthill, MO · PO box	13 mi	—	—	—

Zip codes like 63366 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 63366

What city is zip code 63366?

63366 is assigned to O Fallon, Missouri. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 63366 in?

63366 is in St. Charles County, Missouri.

What is the population of 63366?

About 54,769 people live in 63366, according to the Census Bureau's American Community Survey.

What time zone is 63366 in?

63366 is in Central Time.

What is the median household income in 63366?

The median household income in 63366 is $100,621.

What zip codes are near 63366?

The closest zip codes to 63366 are 63369, 63367, 63376, 63368, 63385.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 63366, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.