51531 ZIP Code, Elk Horn, IA
51531 is a ZIP code in Elk Horn, Iowa — mostly in Shelby County (79% of its land), with smaller parts in Audubon County. It covers 27 square miles of land. The closest ZIP codes are 51543, 51552 and 50042. 889 people live here in 389 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (78%). Median household income is $59,199, below the Iowa median of $75,059; the median age is 46.0, older than most ZIP codes.
Quick facts
- Mailing city: Elk Horn, IA
- County: Shelby County
- Land area: 27 sq mi
- Population: 889
- Median household income: $59,199
Key figures
| Measure | Value |
|---|---|
| Residents | 889 |
| Households | 389 |
| Median household income | $59,199 |
| Income per person | $37,230 |
| Median age | 46 |
| Homeowners | 78.4% |
| Median home value | $131,500 |
| Median rent | $668 |
| Bachelor's degree or higher | 28.6% |
| Average commute (minutes) | 20.2 |
| Households with kids under 18 | 22.6% |
| Moved in the past year | 13.0% |
| Below the poverty line | 9.6% |
| Broadband internet | 93.1% |
| Speak a non-English language at home | 2.1% |
Household income
| % of households | Value |
|---|---|
| <$10K | 0.5% |
| $10–15K | 1.5% |
| $15–25K | 9.5% |
| $25–35K | 10.0% |
| $35–50K | 13.9% |
| $50–75K | 26.7% |
| $75–100K | 12.6% |
| $100–150K | 12.1% |
| $150–200K | 5.7% |
| $200K+ | 7.5% |
Age
| % of all residents | Value |
|---|---|
| <10 | 6.6% |
| 10–19 | 9.7% |
| 20–24 | 12.8% |
| 25–34 | 11.2% |
| 35–44 | 8.1% |
| 45–54 | 13.7% |
| 55–64 | 15.4% |
| 65–74 | 8.5% |
| 75+ | 13.7% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 40.8% |
| Owned outright | 25.5% |
| Rented | 18.1% |
| Vacant | 15.6% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 88.1% |
| Townhome | 2.8% |
| 2–4 units | 7.1% |
| 5–19 units | 0.0% |
| 20+ units | 0.0% |
| Mobile / other | 2.0% |
Businesses in 51531
29 business establishments with 450 employees (ZIP Codes Business Patterns 2023).
- Transportation and Warehousing: 5
- Finance and Insurance: 4
- Retail Trade: 3
- Health Care and Social Assistance: 3
- Accommodation and Food Services: 3
EDDM carrier routes
See every USPS carrier route in 51531 with residential and business mailbox counts on the route map. Open the EDDM route map.
Nearby ZIP codes
- 51543 — Kimballton city, IA (4.9 mi)
- 51552 — Marne city, IA (7.1 mi)
- 50042 — Brayton city, IA (10.2 mi)
- 51577 — Walnut city, IA (10.4 mi)
- 51447 — Kirkman city, IA (10.7 mi)
- 51537 — Harlan city, IA (11.6 mi)
- 50022 — Atlantic city, IA (12.6 mi)
- 50076 — Exira city, IA (12.7 mi)
Areas that include 51531
- Elk Horn, IA ZIP codes — 1 ZIP code
- Audubon County ZIP codes — 9 ZIP codes
- Shelby County ZIP codes — 16 ZIP codes
- Iowa ZIP code data
Mail every home in 51531
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 51531, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 51531 in?
- 51531 is a Elk Horn, IA mailing address. By land area, 3% lies inside Elk Horn; the rest is outside any Census-defined city or community.
- What county is 51531 in?
- 51531 is mostly in Shelby County (79% of its land), with smaller parts in Audubon County.
- What is the population of 51531?
- About 889 people (±163), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 806.
- What is the median household income in 51531?
- $59,199 (±$5,212), compared with $75,059 for Iowa as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 51531?
- EDDM2GO's stored route library does not include 51531 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
- What ZIP codes are near 51531?
- The closest, measured center to center: 51543 (4.9 mi, Kimballton), 51552 (7.1 mi, Marne), 50042 (10.2 mi, Brayton), 51577 (10.4 mi, Walnut), 51447 (10.7 mi, Kirkman) and 51537 (11.6 mi, Harlan).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.