ZIP Code 51527 - Defiance Iowa
Overview
ZIP Code 51527 is located in Defiance Iowa. Portions of 51527 are also in Union Township (Shelby County) and Greeley Township (Shelby County) and Washington Township (Crawford County) and Douglas Township (Shelby County) and Westphalia Township. 51527 is primarily within Shelby County, with some portions in Crawford County. Regionally, 51527 is located in the Omaha Area.
ZIP Code 51527 Quick Stats
| ZIP Code Name | Defiance |
| Primary County | Shelby County |
| ZIP Code Type | Standard |
| Population (2022) | 395 |
| Area Code(s) | 712 |
| Current Time | CDT |
ZIP Code 51527 Map
51527 Demographics
51527 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in Iowa based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 51527 is White. The current unemployment level in 51527 is 3.3%.
| Population | 395 |
| Population Growth Rate | 22.13% |
| Population Density | 11 People per Square Mile |
| Total Households | 180 |
| Percentage High Income Households | 1.1% |
| Median Household Income (2021) | $69,688 |
| Average Adjusted Gross Income (2021) | $170,130 |
| Current Unemployment Rate (May 2026) | 3.3% |
| Sales Tax Rate (2025) | 7% |
| Majority Race/Ethnicity | White - 98.38% |
51527 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 607 | 98.38% |
| Black | 0 | 0% |
| Hispanic | 10 | 1.62% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
51527 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 17 | 5.67% |
| Bachelor Degree | 10 | 3.33% |
| High School Diploma | 187 | 62.33% |
| No High School Diploma | 1 | 0.33% |
| GED or Alternate | 20 | 6.67% |
| 1 or More Years of College | 51 | 17% |
| Associates Degree | 14 | 4.67% |
| Masters Degree | 0 | 0% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 0 | 0% |
51527 Geography
| Coordinates | 41.8269043, -95.34410095 |
| Adjacent ZIP Codes | |
| Cities/Towns in 51527 | |
| Region | Omaha Area |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 35 Square Miles |
51527 Weather and Climate Data
| Plant Hardiness Zone | Zone 5a: -20F to -15F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | October 1 - 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | May 1 - 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Dfa - Humid Continental Hot Summers | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 47e - Steeply Rolling Loess Prairies | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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