Residential delivery area · Iowa
ZIP Code 51531: Elk Horn, IA
ZIP code 51531 uses the postal name Elk Horn, Iowa and lies mostly in Shelby County (79% of its land) with the rest in Audubon County (Census 2020 ZIP-county file). About 890 people live there (Census Bureau, ACS 2020-2024). Median household income is $59,199 (Census Bureau, ACS 2020-2024). By Census place, 3% of its land lies in Elk Horn; 97% is outside any Census place.
- ACS2020-24
- Census2020
- ZBP2023
- IRS2022
- Town
- Elk Horn · its only residential ZIP
- County
- Shelby County (79%); Audubon County (21%)
- Census places
- Elk Horn
- House district
- IA-4 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 27.3 sq mi · 33 people per sq mi
Where is ZIP code 51531?
51531 centers on 41.587°, -95.088° and covers 27.3 square miles of land. It borders 7 ZIP codes: 51543, 51552, 51577, 51537, 50022, 50076, 50025.
The map draws ZIP code areas only. For the streets inside 51531, 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 51531 compare with the rest of Shelby County?
| Measure | 51531 | In Shelby County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 889 | 9th of 18 | 505th of 970 |
| Median household income | $59k | not ranked | not ranked |
| Median home value | $132k | not ranked | not ranked |
51531's income and home value are not ranked: it has fewer than 1,000 residents (889). 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 34% 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 51531?
The 2020 Census counted 806 people in 51531; the ACS, which samples households over 2020-2024, estimates 889. Between the 2010 and 2020 censuses its population fell 11.8% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 889±163 (90% margin)
- 2020 Census count
- 806−11.8% since 2010 (914)
- Households
- 389
- Median age
- 46.0
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 51531?
Of the 889 people the ACS estimates in 51531, 14.2% are under 18 and 22.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (87.4%).
- Under 1814.2%
- 18 to 6463.6%
- 65 and older22.3%
- White, not Hispanic87.4%
- Asian, not Hispanic6.3%
- Other or two or more3.7%
- Hispanic or Latino2.6%
- Black, 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 51531 earn?
Median household income is $59,199 (ACS 2020-2024). It fell from $75,153 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $59,199
- Income per person
- $37,230
- Below the poverty line
- 9.6%
- Unemployed (of the labor force)
- 1.4%
- Adults 25+ with a bachelor's degree
- 28.6%
- Adjusted gross income per tax return, 2022
- $73,947380 returns; wages 60% 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 51531?
- Median home value (owners' estimate)
- $131,500
- Median gross rent
- $668
- Homes owned by their occupants
- 78.4%
- Housing units
- 461
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001).
What businesses are in 51531?
29 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 warehousing5
- Finance and insurance4
- Retail trade3
- Health care and social assistance3
- Accommodation and food services3
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 51531?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 51543 | Kimballton | 478 | $72k | 4.9 mi |
| 51552 | Marne | 169 | $90k | 7.1 mi |
| 51577 | Walnut | 1,561 | $72k | 10.4 mi |
| 51537 | Harlan | 6,382 | $65k | 11.6 mi |
| 50022 | Atlantic | 8,526 | $63k | 12.6 mi |
| 50076 | Exira | 1,301 | $55k | 12.7 mi |
| 50025 | Audubon | 3,148 | $52k | 14.5 mi |
| 50042 | Brayton | 226 | $93k | 10.2 mi (near) |
| 51447 | Kirkman | 113 | $68k | 10.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.