51331 ZIP Code, Arnolds Park, IA
51331 is a ZIP code in Arnolds Park, Iowa in Dickinson County. It covers 1.6 square miles of land. The closest ZIP codes are 51355, 51351 and 51360. 935 people live here in 522 households. With about 583 people per square mile it is lightly settled, and most homes are owner-occupied (89%). Median household income is $89,167, above the Iowa median of $75,059; the median age is 64.8, older than most ZIP codes.
Quick facts
- Mailing city: Arnolds Park, IA
- County: Dickinson County
- Land area: 1.6 sq mi
- Population: 935
- Median household income: $89,167
Key figures
| Measure | Value |
|---|---|
| Residents | 935 |
| Households | 522 |
| Median household income | $89,167 |
| Income per person | $70,729 |
| Median age | 64.8 |
| Homeowners | 89.3% |
| Median home value | $448,800 |
| Median rent | $497 |
| Bachelor's degree or higher | 40.7% |
| Average commute (minutes) | 16.8 |
| Households with kids under 18 | 6.7% |
| Moved in the past year | 5.0% |
| Below the poverty line | 5.8% |
| Broadband internet | 95.6% |
| Speak a non-English language at home | 1.0% |
Household income
| % of households | Value |
|---|---|
| <$10K | 0.6% |
| $10–15K | 0.6% |
| $15–25K | 9.0% |
| $25–35K | 4.2% |
| $35–50K | 5.2% |
| $50–75K | 19.7% |
| $75–100K | 14.9% |
| $100–150K | 22.6% |
| $150–200K | 9.4% |
| $200K+ | 13.8% |
Age
| % of all residents | Value |
|---|---|
| <10 | 5.5% |
| 10–19 | 1.2% |
| 20–24 | 0.2% |
| 25–34 | 8.0% |
| 35–44 | 8.4% |
| 45–54 | 7.1% |
| 55–64 | 20.4% |
| 65–74 | 27.5% |
| 75+ | 21.6% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 13.1% |
| Owned outright | 15.9% |
| Rented | 3.5% |
| Vacant | 67.6% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 54.8% |
| Townhome | 4.9% |
| 2–4 units | 3.2% |
| 5–19 units | 9.3% |
| 20+ units | 12.1% |
| Mobile / other | 15.7% |
Businesses in 51331
92 business establishments with 605 employees (ZIP Codes Business Patterns 2023).
- Accommodation and Food Services: 33
- Retail Trade: 15
- Other Services (except Public Administration): 8
- Real Estate and Rental and Leasing: 6
- Arts, Entertainment, and Recreation: 6
- Transportation and Warehousing: 5
- Finance and Insurance: 5
- Construction: 4
EDDM carrier routes
See every USPS carrier route in 51331 with residential and business mailbox counts on the route map. Open the EDDM route map.
Nearby ZIP codes
- 51355 — Okoboji city, IA (2.1 mi)
- 51351 — Milford city, IA (4.1 mi)
- 51360 — Spirit Lake city, IA (5.6 mi)
- 51340 — Fostoria city, IA (8.3 mi)
- 51364 — Terril city, IA (9.4 mi)
- 51347 — Lake Park city, IA (10.4 mi)
- 51363 — Superior city, IA (10.6 mi)
- 51338 — Everly city, IA (14.2 mi)
Areas that include 51331
- Arnolds Park, IA ZIP codes — 2 ZIP codes
- Dickinson County ZIP codes — 9 ZIP codes
- Iowa ZIP code data
Mail every home in 51331
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) 51331, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 51331 in?
- 51331 is a Arnolds Park, IA mailing address. By land area, 72% lies inside Arnolds Park and 4% lies inside West Okoboji; the rest is outside any Census-defined city or community.
- What county is 51331 in?
- 51331 is in Dickinson County.
- What is the population of 51331?
- About 935 people (±174), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 1,102.
- What is the median household income in 51331?
- $89,167 (±$20,341), 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 51331?
- EDDM2GO's stored route library does not include 51331 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
- What ZIP codes are near 51331?
- The closest, measured center to center: 51355 (2.1 mi, Okoboji), 51351 (4.1 mi, Milford), 51360 (5.6 mi, Spirit Lake), 51340 (8.3 mi, Fostoria), 51364 (9.4 mi, Terril) and 51347 (10.4 mi, Lake Park).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.