Postal Codes

63341 ZIP Code

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ZIP code 63341 covers Defiance, Missouri, with a population of about 3,554 and a median household income of $177,583.

Population
3,55492 per square mile
Median age
47.79 points above the US average
Median household income
$177,5832.6× the Missouri median
Poverty rate
4.2%8.2 points below the US average
Typical home value
$648,092up 28.1% in five years
Degree or higher
53.9%18.9 points above the US average
Homeownership
96.9%31.9 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
82

Where 63341 is

Defiance, Missouri — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population3,554
Median age47.7
Family households88%
Born outside the US1.3%
Speaks a language other than English at home0.9%
White (non-Hispanic)90.9%
Black (non-Hispanic)0.3%
Asian (non-Hispanic)0%
Hispanic or Latino2.4%
Veterans6.6%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$177,583
Income per person$85,324
Poverty rate4.2%
Households on SNAP or cash assistance0.6%

Household income distribution

Under $10k1.1%
$10–15k1.3%
$15–20k0.6%
$20–25k1.4%
$25–30k1.1%
$30–35k3.5%
$35–40k0.0%
$40–45k2.4%
$45–50k1.0%
$50–60k2.1%
$60–75k1.0%
$75–100k6.8%
$100–125k7.5%
$125–150k10.3%
$150–200k16.8%
$200k or more43.1%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed2,030
Mean adjusted gross income$162,180
Returns declaring $200,000 or more21.7%
Returns, under $25k21.7%
Returns, $25k–$50k13.8%
Returns, $50k–$75k9.4%
Returns, $75k–$100k8.4%
Returns, $100k–$200k25.1%
Returns, $200k or more21.7%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$552,600
Owner-occupied96.9%
Vacant homes7.4%
Median year built1994

What the homes are

Detached house96.5%
Mobile home2.2%
Boat, RV or van1.3%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$648,092as of 2026-07
Typical home value, 1 yearup 4%
Typical home value, 5 yearsup 28.1%
Typical home value, 10 yearsup 75.5%
Typical home value since 2000
200120132026$648,092$262,560

$262,560 in 2001 to $648,092 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.5%
Bachelor's degree or higher53.9%
High school diploma or higher98.2%
Works from home21%
Drives to work alone72%
Takes public transport0%
Commutes 45 minutes or more19.3%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity35.5% 2.1 pts above the national average of 33.4%
Diagnosed diabetes11.5% 0.5 pts below the national average of 12%
Currently smokes12% 1.2 pts below the national average of 13.2%
High blood pressure35.2% 1.1 pts above the national average of 34.1%
Fair or poor general health15% 5.3 pts below the national average of 20.3%
No health insurance (18–64)5.1% 6.2 pts below the national average of 11.3%
Depression22.1% same as the national average of 21.9%
No leisure-time physical activity22.4% 3 pts below the national average of 25.4%
Arthritis30.2% 5.1 pts above the national average of 25.1%
Binge drinking17.5% 1.5 pts above the national average of 16%
Taking blood pressure medication80.3% 5.6 pts above the national average of 74.7%
Cancer (non-skin)10.9% 3.2 pts above the national average of 7.7%
Current asthma9.9% 0.5 pts below the national average of 10.4%
Coronary heart disease6.5% same as the national average of 6.2%
Routine check-up in past year80.4% 3.7 pts above the national average of 76.7%
Cholesterol screening89.5% 3.6 pts above the national average of 85.9%
Cognitive disability12.9% 1.9 pts below the national average of 14.8%
Colorectal screening71.9% 7.6 pts above the national average of 64.3%
COPD6.5% same as the national average of 6.6%
Visited a dentist67.8% 6.5 pts above the national average of 61.3%
Any disability31.3% 0.6 pts above the national average of 30.7%
Lacks emotional support15.5% 9.3 pts below the national average of 24.8%
Food insecurity6.7% 10.4 pts below the national average of 17.1%
Received food stamps4.3% 10 pts below the national average of 14.3%
Hearing disability7.9% 1.2 pts above the national average of 6.7%
High cholesterol40.9% 4.7 pts above the national average of 36.2%
Housing insecurity6.6% 7.2 pts below the national average of 13.8%
Independent living disability6.3% 2.1 pts below the national average of 8.4%
Lacks transport4.7% 4.5 pts below the national average of 9.2%
Loneliness26.2% 8.2 pts below the national average of 34.4%
Mammography use81.6% 5.7 pts above the national average of 75.9%
Poor mental health (14+ days)13.8% 3 pts below the national average of 16.8%
Mobility disability12.5% 1.5 pts below the national average of 14%
Poor physical health (14+ days)12.5% 1 pts below the national average of 13.5%
Self-care disability2.8% 1.2 pts below the national average of 4%
Utility shut-off threat4.7% 4.1 pts below the national average of 8.8%
Sleeps under 7 hours38.4% 2 pts above the national average of 36.4%
Stroke3.1% same as the national average of 3.4%
All natural teeth lost11.9% 1.1 pts below the national average of 13%
Vision disability3.3% 2.3 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments82
People employed617
Annual payroll$33,202,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 78.5% of US census tracts
FEMA ratingVery Low to Relatively Moderate across the 3 census tracts this ZIP code covers
Expected annual loss85.9 out of 100
Community resilience91.9 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Landslide97.6Relatively High at its worst in this ZIP code
Hail94.6Relatively High at its worst in this ZIP code
Strong wind89.5Relatively High at its worst in this ZIP code
Tornado88.6Relatively High at its worst in this ZIP code
Wildfire86.6Relatively Low at its worst in this ZIP code
Drought84.4Relatively Low at its worst in this ZIP code
Earthquake83.2Relatively Moderate at its worst in this ZIP code
River flooding80Relatively High at its worst in this ZIP code
Heat wave79.7Relatively Moderate at its worst in this ZIP code
Winter weather78.4Relatively High at its worst in this ZIP code
Cold wave75.9Relatively High at its worst in this ZIP code
Lightning69.3Relatively Moderate at its worst in this ZIP code
Ice storm63.5Relatively Low at its worst in this ZIP code
Hurricane28Very Low at its worst in this ZIP code
Compared with Missouri and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPMissouriUnited States
Median household income$177,583$68,920$78,538
Income per person$85,324$38,497$43,289
Poverty rate4.2%12.6%12.4%
Median home value$552,600$215,600$303,400
Median gross rent$996$1,348
Homeownership96.9%67.9%65%
Bachelor's degree or higher53.9%31.9%35%
Unemployment rate2.5%4.1%5.2%
Works from home21%11.6%13.5%
Born outside the US1.3%4.4%13.9%
Median age47.738.938.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationWELDON SPRING NWS, MO US13.5 km away
Rain in a year44 in
Snow in a year14 in

Average high and low by month

January39.3°F / 21.2°F2.61 in rain, 4.1 in snow
February44.8°F / 24.4°F2.43 in rain, 3.7 in snow
March55.2°F / 33.3°F3.74 in rain, 1.7 in snow
April67°F / 43.8°F4.7 in rain, 0.2 in snow
May75.7°F / 54.2°F5.09 in rain
June83.7°F / 63.3°F4.72 in rain
July87.5°F / 67.3°F3.92 in rain
August86.7°F / 65.4°F3.58 in rain
September79.8°F / 57°F3.5 in rain
October68.3°F / 45.6°F3.37 in rain
November55.4°F / 34.9°F3.69 in rain, 0.8 in snow
December44°F / 25.9°F3.07 in rain, 3 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.

Francis Howell R-III School District89.6% of this ZIP code's land area
Washington School District10.4% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability4more vulnerable than 4% of US census tracts
Socioeconomic status4more vulnerable than 4% of US census tracts
Household characteristics15more vulnerable than 15% of US census tracts
Racial and ethnic minority status6more vulnerable than 6% of US census tracts
Housing type and transport18more vulnerable than 18% of US census tracts
Walkability5 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

63365 New Melle, MO7.2 km away
63073 Saint Albans, MO10.3 km away
63332 Augusta, MO10.8 km away
63368 O Fallon, MO13.3 km away
63348 Foristell, MO14.4 km away
63367 Lake Saint Louis, MO15.2 km away
63342 Dutzow, MO15.7 km away
63385 Wentzville, MO15.7 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

St. Charles County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area38.83 sq mi
Water area1.05 sq mi
Population density92 people per sq mi
Latitude, longitude38.6616, -90.8302

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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