63341 ZIP Code — Defiance, MO

Saint Charles County, Missouri

ZIP code 63341 is located in Defiance, Missouri, within Saint Charles County. It covers approximately 38.83 square miles and serves a population of 3,628 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 636.

About ZIP code 63341

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $477,900. Owner-occupancy is high at 92%, well above the national average.

The gap between median ($139,293) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 3% is below the national average. 32% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 33 minutes is near the national average.

Educational attainment is high — 53% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 63341 reflects a community defined by a highly educated population, high homeownership, and a significant Social Security-dependent population.

3,628

population

38.83

sq mi land

Standard

ZIP type

Central (CT)

timezone

63341 ZIP code map

Cities in ZIP code 63341

Below are the cities the US Postal Service accepts for ZIP code 63341. Using any city not on this list may result in mail delivery delays.

City	Status
Defiance	Acceptable
Defiance	Preferred

Nearby ZIP codes

63005 Chesterfield (6 mi) 63368 O Fallon (6.4 mi) 63332 Augusta (6.9 mi) 63304 Saint Charles (6.9 mi) 63304 Saint Charles (6.9 mi) 63304 Saint Charles (6.9 mi) 63038 Wildwood (7.7 mi) 63367 Lake Saint Louis (7.9 mi) 63055 Labadie (8.5 mi) 63385 Wentzville (9.8 mi) 63385 Wentzville (9.8 mi) 63040 Wildwood (9.9 mi)

Demographics updated 05/2026

Population
Total population	3,628
Population density	93 / sq mi
State FIPS	29
County FIPS	183

Geography
Land area	38.83 sq mi
Water area	1.05 sq mi
Latitude	38.6595
Longitude	-90.7762
Timezone	Central (CT)
Area code	636

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	19.3%	24.9%	43.8%
$50k – $100k	22.3%	32.4%	31.5%
$100k – $200k	36.5%	33.0%	19.5%
Over $200k	21.9%	9.7%	5.2%

Demographics & statistics

3,628

Population

People per sq mi

48.2

Median age

$139,293

Median household income

$76,440

Per capita income

$477,900

Median home value

$1,135

Median monthly rent

92.4%

Home ownership

2.6%

Poverty rate

3.4%

Unemployment

1,294

Housing units

52.7%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

165

10–14

156

160

15–19

152

20–24

116

25–34

110

200

35–44

189

368

45–54

349

151

55–59

143

138

60–64

131

255

65–74

241

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	795	21.9%
18 and over	2,833	78.1%
65 and over	655	18.1%
Median age	48.2 years

Race & ethnicity

White 90.1%

Hispanic or Latino 4.9%

Two or more races 2.9%

Other race 2%

Black or African American 0.1%

Group	Count	%
White	3,438	90.1%
Hispanic or Latino	186	4.9%
Two or more races	110	2.9%
Other race	76	2%
Black or African American	4	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	19.3%	24.9%	43.8%
$50k – $100k	22.3%	32.4%	31.5%
$100k – $200k	36.5%	33.0%	19.5%
Over $200k	21.9%	9.7%	5.2%

Under $10k 2.4%

$15k–$25k 1.3%

$25k–$35k 3.9%

$35k–$50k 10.4%

$50k–$75k 5.5%

$75k–$100k 15.2%

$100k–$150k 14.9%

$150k–$200k 13.0%

$200k+ 33.5%

Range	% of households
Under $10k	2.4%
$15k–$25k	1.3%
$25k–$35k	3.9%
$35k–$50k	10.4%
$50k–$75k	5.5%
$75k–$100k	15.2%
$100k–$150k	14.9%
$150k–$200k	13.0%
$200k+	33.5%
Median income	$139,293

Housing

Home values

$50k–$100k 2.6%

$100k–$150k 6.3%

$150k–$200k 3.2%

$200k–$300k 12.2%

$300k–$500k 29.4%

$500k–$1M 36.4%

$1M+ 10.0%

Housing overview

Metric	Value
Median home value	$477,900
Median rent / month	$1,135
Owner occupied	92.4%
Renter occupied	7.6%
Vacant	3.3%
Single-family detached	97.7%
Large apartment buildings	0.0%
Mobile homes	2.3%
Median rooms	8.1
Avg household size (owned)	2.78

Year built

Era	%
2020 or later	4.0%
2010–2019	11.5%
2000–2009	13.5%
1990–1999	26.7%
1980–1989	18.5%
1970–1979	9.7%
1960–1969	3.0%
1950–1959	8.1%
1940–1949	3.7%
1939 or earlier	1.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	6.9%
3 bedrooms	40.4%
4 bedrooms	37.7%
5+ bedrooms	15.0%

Vehicles per household

Vehicles	% of households
No vehicle	1.6%
1 vehicle	10.4%
2 vehicles	48.7%
3 or more	39.2%

Heating fuel

Fuel type	%
Utility gas	3.4%
Electricity	45.0%
Propane / LP gas	40.3%
Fuel oil	2.8%
Wood	3.6%
No fuel used	4.9%

Households & families

Household type	Count	%
Married-couple family	995	73.6%
Cohabiting couple	15	1.1%
Male householder, no spouse	188	13.9%
Female householder, no spouse	153	11.3%
Households with children under 18	486	36.0%
Households with seniors (65+)	444	32.9%
Average household size	2.67

Marital status

Status	Male	Female
Never married	26.1%	16.8%
Married	62.4%	72.4%
Separated	0.0%	0.0%
Widowed	3.1%	4.1%
Divorced	8.4%	6.7%

Education

Less than 9th grade 0.7%

Some HS, no diploma 1.6%

HS graduate 28.7%

Some college, no degree 10.6%

Associate's degree 5.7%

Bachelor's degree 27.8%

Graduate / professional 24.9%

Metric	%
HS diploma or higher	97.8%
Bachelor's or higher	52.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	32	3.3%
Kindergarten	17	1.8%
Elementary school	391	40.6%
High school	331	34.3%
College / grad school	193	20.0%

Employment

Industry of employment

Education & healthcare 20.4%

Retail trade 11.6%

Professional & management 10.2%

Finance & real estate 10.1%

Manufacturing 9.5%

Other services 7.4%

Public administration 6.7%

Construction 6.2%

Transportation & utilities 5.7%

Arts, food & hospitality 4.9%

Agriculture & mining 4.0%

Wholesale trade 3.4%

Occupation

Category	%
Management, business & arts	60.3%
Service	9.4%
Sales & office	12.5%
Natural resources & construction	7.6%
Production & transportation	10.3%

Employment type

Type	%
Private sector	84.1%
Government	10.8%
Self-employed	5.1%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	75.0%
Carpool	5.2%
Public transit	0.0%
Walk	0.0%
Work from home	18.6%
Other means	1.2%
Avg commute (minutes)	32.9

Poverty

All people 2.6%

Under 18 years 0.0%

18 and over 3.3%

Married-couple families 3.8%

Female-led households 0.0%

Income support

Source	% of households
Social Security	32.2%
Retirement income	26.7%
Supplemental Security	3.7%
Cash public assistance	0.7%
Food stamps / SNAP	1.9%

Health indicators

Condition	%
Obesity	32.0%
High blood pressure	29.2%
High cholesterol	35.9%
Diabetes	8.8%
Heart disease	6.1%
Stroke	2.6%
Asthma	8.6%
Arthritis	26.2%
Kidney disease	2.5%
Pulmonary disease	6.5%
Cancer	7.0%

Behavior / access	%
Smoking	16.5%
Binge drinking	19.8%
No physical activity	21.6%
Less than 7 hrs sleep	32.0%
Depression	22.4%
Fair or poor health	12.2%
Poor mental health	13.7%
Poor physical health	9.8%
No health insurance	11.2%
Visited doctor (checkup)	75.3%
Visited dentist	67.8%
Cholesterol screening	92.0%
Teeth loss	11.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	223	7.9%

Disability	%
Any disability	11.8%
Under 18	8.1%
18–64 years	10.7%
65 and over	20.3%

Health insurance coverage

Type	%
Private insurance	88.5%
Public insurance	21.0%
No insurance	1.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	3,501	96.5%
Spanish	2	0.1%
Other Indo-European	2	0.1%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	3,565	98.3%
Born in same state	3,537	97.5%
Born in different state	2,651	73.1%
Foreign born	28	0.8%
Naturalized citizen	63	1.7%
Not a US citizen	63	100.0%

Ancestry

Ancestry	Count	%
Italian	500	13.8%
French	475	13.1%
Arab	146	4%
Dutch	66	1.8%

Ancestry	Count	%
English	49	1.4%
German	23	0.6%
Irish	21	0.6%
Polish	21	0.6%

Technology access

Metric	% of households
Computer access	37.2%
Internet access	92.8%

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

Frequently asked questions about ZIP code 63341

What city is ZIP code 63341 in?

ZIP code 63341 is primarily assigned to Defiance, Missouri.

What county is ZIP code 63341 in?

ZIP code 63341 falls within Saint Charles County, Missouri.

Is ZIP code 63341 mostly owner-occupied?

92% of occupied units in ZIP code 63341 are owner-occupied, well above the national average.

How educated is the population of ZIP code 63341?

53% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the median household income in ZIP code 63341?

The median household income in ZIP code 63341 is $139,293, above the national median of ~$75,000.

What is the typical home value in ZIP code 63341?

The median home value in ZIP code 63341 is $477,900.

What timezone is ZIP code 63341 in?

ZIP code 63341 observes the CST timezone.