Residential delivery area · Iowa
ZIP Code 51347: Lake Park, IA
ZIP code 51347 uses the postal name Lake Park, Iowa and lies entirely in Dickinson County (Census 2020 ZIP-county file). About 1,500 people live there (Census Bureau, ACS 2020-2024). Median household income is $82,750 (Census Bureau, ACS 2020-2024). By Census place, 2% of its land lies in Lake Park; 98% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Lake Park · its only residential ZIP
- County
- Dickinson County
- Census places
- Lake Park
- Micro area
- Spirit Lake, IA
- House district
- IA-4 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 81.0 sq mi · 18 people per sq mi
Where is ZIP code 51347?
51347 centers on 43.422°, -95.318° and covers 81.0 square miles of land plus 2.0 of water. It borders 6 ZIP codes: 51345, 51351, 56167, 51360, 51338, 56150.
The map draws ZIP code areas only. For the streets inside 51347, 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 51347 compare with the rest of Dickinson County?
| Measure | 51347 | In Dickinson County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 1,470 | 4th of 10 | 351st of 970 |
| Median household income | $83k | 1st of 4 | 148th of 396 |
| Median home value | $202k | 3rd of 4 | 179th of 423 |
Its median household income is higher than in 65% of U.S. residential ZIP codes, and it is denser than 24% 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 51347?
The 2020 Census counted 1,489 people in 51347; the ACS, which samples households over 2020-2024, estimates 1,470. Between the 2010 and 2020 censuses its population grew 4.1% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,470±225 (90% margin)
- 2020 Census count
- 1,489+4.1% since 2010 (1,431)
- Households
- 651
- Median age
- 43.6
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 51347?
Of the 1,470 people the ACS estimates in 51347, 23.6% are under 18 and 24.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (92.8%).
- Under 1823.6%
- 18 to 6452.2%
- 65 and older24.2%
- White, not Hispanic92.8%
- Other or two or more3.3%
- Hispanic or Latino3.0%
- Asian, not Hispanic1.0%
- 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 51347 earn?
Median household income is $82,750 (ACS 2020-2024), the highest of the 4 ranked ZIP codes in Dickinson County. It is not measurably different from 2015-2019 ($76,611 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $82,750±$12,269
- Income per person
- $39,789
- Below the poverty line
- 5.6%
- Unemployed (of the labor force)
- 3.7%
- Adults 25+ with a bachelor's degree
- 16.7%
- Adjusted gross income per tax return, 2022
- $87,963760 returns; wages 54% 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 51347?
FHFA's house price index for 51347, built from repeat sales and appraisals of the same homes, rose 123% from 2015 to 2025 and rose 77% from 2020 to 2025.
- Median home value (owners' estimate)
- $201,600
- Median gross rent
- $887
- Homes owned by their occupants
- 90.9%
- Housing units
- 740
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 51347?
35 business establishments had a location in this ZIP code in 2023, 9 fewer than in 2018; the most are in other services (except public administration) (ZIP Code Business Patterns).
- Other services (except public administration)8
- Finance and insurance5
- Manufacturing4
- Retail trade4
- Wholesale trade3
- Arts, entertainment, and recreation3
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 51347?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 51345 | Harris | 347 | $54k | 5.9 mi |
| 51351 | Milford | 4,988 | $74k | 10.0 mi |
| 56167 | Round Lake, MN | 555 | $73k | 10.2 mi |
| 51360 | Spirit Lake | 8,653 | $76k | 11.7 mi |
| 51338 | Everly | 852 | $58k | 15.0 mi |
| 56150 | Lakefield, MN | 2,802 | $77k | 15.5 mi |
| 51355 | Okoboji | 1,048 | $72k | 9.2 mi (near) |
| 51331 | Arnolds Park | 935 | $89k | 10.4 mi (near) |
| 51354 | Ocheyedan | 965 | $73k | 11.3 mi (near) |
| 51340 | Fostoria | 75 | $90k | 15.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.