ZIP Code 63341 - Defiance Missouri
Overview
ZIP Code 63341 is located in Defiance Missouri. Portions of 63341 are also in New Melle and Boone Township (Saint Charles County). 63341 is entirely within Saint Charles County. Regionally, 63341 is located in Metro St. Louis.
ZIP Code 63341 Quick Stats
| ZIP Code Name | Defiance |
| Primary County | Saint Charles County |
| ZIP Code Type | Standard |
| Population (2022) | 3,628 |
| Area Code(s) | 636 |
| Current Time | CDT |
ZIP Code 63341 Map
63341 Demographics
63341 can be classified socioeconomically as Middle Class class compared to other ZIP Codes in Missouri based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 63341 is White. The current unemployment level in 63341 is 4.2%.
| Population | 3,628 |
| Population Growth Rate | -3.99% |
| Population Density | 56 People per Square Mile |
| Total Households | 1,294 |
| Percentage High Income Households | 5.6% |
| Median Household Income (2021) | $112,818 |
| Average Adjusted Gross Income (2021) | $679,970 |
| Current Unemployment Rate (May 2026) | 4.2% |
| Sales Tax Rate (2025) | 8% |
| Majority Race/Ethnicity | White - 99.35% |
63341 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 3,361 | 99.35% |
| Black | 8 | 0.24% |
| Hispanic | 14 | 0.41% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
63341 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 252 | 10.12% |
| Bachelor Degree | 600 | 24.1% |
| High School Diploma | 740 | 29.72% |
| No High School Diploma | 36 | 1.45% |
| GED or Alternate | 48 | 1.93% |
| 1 or More Years of College | 310 | 12.45% |
| Associates Degree | 198 | 7.95% |
| Masters Degree | 249 | 10% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 57 | 2.29% |
63341 Geography
| Coordinates | 38.667099, -90.79303741 |
| Adjacent ZIP Codes | |
| Cities/Towns in 63341 | |
| Region | Metro St. Louis |
| Metropolitan/Micropolitan Stat Area | St. Louis, MO-IL |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 65 Square Miles |
63341 Schools
| School Districts in 63341 | |
| Elementary Schools in 63341 | |
| Middle Schools in 63341 | |
| High Schools in 63341 |
63341 Weather and Climate Data
| Plant Hardiness Zone | Zone 6a: -10F to -5F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | October 11 - 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | April 11 - 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Dfa - Humid Continental Hot Summers | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 72f - River Hills | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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