Defiance, IA 51527 ZIP Code Profile

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Defiance, IA

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ZIP Code 51527: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Defiance, IA 51527

  • ZIP Code Type: STANDARD
  • County: Shelby County
  • Centroid: Latitude 41.827, Longitude -95.342
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

ZIP Code 51527 has segments in 2 Counties (Crawford, Shelby).

  • Businesses Addresses: 20
  • PO Box Addresses: 119
  • Residential Addresses: 107
    • Multi-Family Addresses: 0
    • Single Family Addresses: 107

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

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51527 ZIP Code Map

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Defiance, IA 51527 Data & Demographics (As of July 1, 2017)


Total Population 534
Daytime Population: Workers 107
Daytime Population: Residents 249
Total Daytime Population (TDP) 356
Ratio TDP/Total Population1 0.67
Population in Households 529
Population in Familes 452
Population in Group Qrtrs 5
Population Density2 13
Diversity Index3 11


Median Household Income $52,309
Average Household Income $63,462
Per Capita Income $26,240


Total Housing Units 237 (100%)
Owner Occupied HU 180 (75.9%)
Renter Occupied HU 40 (16.9%)
Vacant Housing Units 17 ( 7.2%)
Median Home Value $118,919
Average Home Value $146,528


Total Households 220
Average Household Size 2.4
Family Households 158
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population -0.03% -0.15%
Households 0.13% -0.09%
Families 0.0% -0.13%
Median Household Income   3.35%
Per Capita Income   3.05%

Defiance, IA 51527 - Peer Comparisons by Rank and Percentile

The table below compares 51527 to the other 963 ZIP Codes in Iowa by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 674 30th
Population Density # 726 25th
Diversity Index # 399 59th
Median Household Income # 592 39th
Per Capita Income # 651 33rd

Additional comparisons and rankings can be made with a VERY EASY TO USE Iowa Census Data Comparison Tool.

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