Residential delivery area · Iowa
ZIP Code 51527: Defiance, IA
ZIP code 51527 uses the postal name Defiance, Iowa and lies mostly in Shelby County (83% of its land) with the rest in Crawford County (Census 2020 ZIP-county file). About 360 people live there (Census Bureau, ACS 2020-2024). Median household income is $64,750 (Census Bureau, ACS 2020-2024). By Census place, 1% of its land lies in Defiance; 99% is outside any Census place.
- ACS2020-24
- Census2020
- ZBP2023
- IRS2022
- Town
- Defiance · its only residential ZIP
- County
- Shelby County (83%); Crawford County (17%)
- Census places
- Defiance
- House district
- IA-4 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 42.3 sq mi · 9 people per sq mi
Where is ZIP code 51527?
51527 centers on 41.840°, -95.337° and covers 42.3 square miles of land plus 0.0 of water. It borders 7 ZIP codes: 51530, 51454, 51446, 51528, 51537, 51442, 51529.
The map draws ZIP code areas only. For the streets inside 51527, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 51527 compare with the rest of Shelby County?
| Measure | 51527 | In Shelby County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 362 | 15th of 18 | 762nd of 970 |
| Median household income | $65k | not ranked | not ranked |
| Median home value | $123k | not ranked | not ranked |
51527's income and home value are not ranked: it has fewer than 1,000 residents (362). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 15% of U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 51527?
The 2020 Census counted 475 people in 51527; the ACS, which samples households over 2020-2024, estimates 362. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 362±101 (90% margin)
- 2020 Census count
- 475
- Households
- 166
- Median age
- 37.4
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 51527?
Of the 362 people the ACS estimates in 51527, 20.7% are under 18 and 29.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (91.7%).
- Under 1820.7%
- 18 to 6449.4%
- 65 and older29.8%
- White, not Hispanic91.7%
- Hispanic or Latino7.5%
- Other or two or more0.8%
- Black, not Hispanic0.0%
- Asian, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 51527 earn?
Median household income is $64,750 (ACS 2020-2024).
- Median household income
- $64,750±$36,900
- Income per person
- $47,289
- Below the poverty line
- 8.0%
- Unemployed (of the labor force)
- 0.5%
- Adults 25+ with a bachelor's degree
- 22.5%
- Adjusted gross income per tax return, 2022
- $73,762260 returns; wages 58% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 51527?
- Median home value (owners' estimate)
- $123,400
- Median gross rent
- $689
- Homes owned by their occupants
- 88.6%
- Housing units
- 170
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001).
What businesses are in 51527?
18 business establishments had a location in this ZIP code in 2023, 3 fewer than in 2018; the most are in transportation and warehousing (ZIP Code Business Patterns).
- Transportation and warehousing6
- Other services (except public administration)3
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 51527?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 51530 | Earling | 809 | $74k | 6.0 mi |
| 51454 | Manilla | 1,254 | $101k | 8.1 mi |
| 51446 | Irwin | 499 | $63k | 8.6 mi |
| 51528 | Dow City | 674 | $63k | 9.7 mi |
| 51537 | Harlan | 6,382 | $65k | 13.3 mi |
| 51442 | Denison | 9,692 | $67k | 13.3 mi |
| 51529 | Dunlap | 1,732 | $62k | 15.9 mi |
| 51578 | Westphalia | 116 | $77k | 8.8 mi (near) |
| 51520 | Arion | 243 | $61k | 10.9 mi (near) |
| 51447 | Kirkman | 113 | $68k | 11.1 mi (near) |
| 51432 | Aspinwall | 45 | $61k | 11.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.