Residential delivery area · Iowa
ZIP Code 51529: Dunlap, IA
ZIP code 51529 uses the postal name Dunlap, Iowa and lies mostly in Harrison County (38% of its land), reaching into Crawford County, Monona County and Shelby County (Census 2020 ZIP-county file). About 1,700 people live there (Census Bureau, ACS 2020-2024). Median household income is $61,599 (Census Bureau, ACS 2020-2024). By Census place, under 1% of its land lies in Dunlap; more than 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2022
- ZBP2023
- IRS2022
- Town
- Dunlap · its only residential ZIP
- County
- Harrison County (38%); Crawford County (28%); Monona County (18%); Shelby County (15%)
- Census places
- Dunlap
- Metro area
- Omaha, NE-IA
- House district
- IA-4 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 132.3 sq mi · 13 people per sq mi
Where is ZIP code 51529?
51529 centers on 41.860°, -95.643° and covers 132.3 square miles of land plus 0.3 of water. It borders 9 ZIP codes: 51579, 51528, 51530, 51572, 51562, 51060, 51558, 51439, 51527.
The map draws ZIP code areas only. For the streets inside 51529, 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 51529 compare with the rest of Harrison County?
| Measure | 51529 | In Harrison County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 1,732 | 5th of 15 | 312th of 970 |
| Median household income | $62k | 6th of 6 | 348th of 396 |
| Median home value | $157k | 6th of 6 | 305th of 423 |
Its median household income is higher than in 32% of U.S. residential ZIP codes, and it is denser than 20% of all 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 51529?
The 2020 Census counted 1,665 people in 51529; the ACS, which samples households over 2020-2024, estimates 1,732. Between the 2010 and 2020 censuses its population fell 0.4% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,732±232 (90% margin)
- 2020 Census count
- 1,665−0.4% since 2010 (1,671)
- Households
- 825
- Median age
- 57.2
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 51529?
Of the 1,732 people the ACS estimates in 51529, 13.8% are under 18 and 30.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (96.7%).
- Under 1813.8%
- 18 to 6456.2%
- 65 and older30.0%
- White, not Hispanic96.7%
- Other or two or more1.4%
- Hispanic or Latino1.1%
- Black, not Hispanic0.9%
- 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 51529 earn?
Median household income is $61,599 (ACS 2020-2024), the 6th highest of the 6 ranked ZIP codes in Harrison County. It fell from $78,892 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $61,599
- Income per person
- $42,850
- Below the poverty line
- 5.5%
- Unemployed (of the labor force)
- 3.6%
- Adults 25+ with a bachelor's degree
- 14.9%
- Adjusted gross income per tax return, 2022
- $85,455710 returns; wages 67% 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 51529?
- Median home value (owners' estimate)
- $156,800
- Median gross rent
- $902
- Homes owned by their occupants
- 73.1%
- Housing units
- 881
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 51529?
57 business establishments had a location in this ZIP code in 2023, 5 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade9
- Transportation and warehousing9
- Wholesale trade8
- Construction5
- Manufacturing5
- Finance and insurance5
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 51529?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 51579 | Woodbine | 2,282 | $73k | 7.9 mi |
| 51528 | Dow City | 674 | $63k | 8.0 mi |
| 51530 | Earling | 809 | $74k | 12.1 mi |
| 51572 | Soldier | 371 | $70k | 12.0 mi |
| 51562 | Panama | 506 | $81k | 12.1 mi |
| 51060 | Ute | 706 | $53k | 12.7 mi |
| 51558 | Moorhead | 549 | $77k | 12.8 mi |
| 51439 | Charter Oak | 818 | $53k | 15.6 mi |
| 51527 | Defiance | 362 | $65k | 15.9 mi |
| 51520 | Arion | 243 | $61k | 12.1 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.