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County ZIP codes · Iowa · FIPS 19059

Dickinson County, IA ZIP Codes

Dickinson County, Iowa has 10 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 7 of the residential ones lie mainly in Dickinson County and 3 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $57,482 in 51334 (Estherville) to $82,750 in 51347 (Lake Park) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Dickinson County?

51331 · Arnolds Park: $89k51334 · Estherville: $58k51338 · Everly: $58k51345 · Harris: $54k51347 · Lake Park: $83k51351 · Milford: $74k51355 · Okoboji: $72k51360 · Spirit Lake: $76k51363 · Superior: $76k51364 · Terril: $67k51334513605135151347513385136451345513555133151331 · Arnolds Park: $89k51334 · Estherville: $58k51338 · Everly: $58k51345 · Harris: $54k51347 · Lake Park: $83k51351 · Milford: $74k51355 · Okoboji: $72k51360 · Spirit Lake: $76k51363 · Superior: $76k51364 · Terril: $67k5133451360513515134751338513645134551331 · Arnolds Park: $89k51334 · Estherville: $58k51338 · Everly: $58k51345 · Harris: $54k51347 · Lake Park: $83k51351 · Milford: $74k51355 · Okoboji: $72k51360 · Spirit Lake: $76k51363 · Superior: $76k51364 · Terril: $67k51334513605135151347513385136451345
The residential ZIP codes of Dickinson County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024).<$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $57,482 and $75,882.

They carry 10 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 10 residential ZIP codes in Dickinson County

7 ZIP codes lie mainly in Dickinson County; 3 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Dickinson County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
51360 Spirit Lake 8,653 82 $76k $272k 97%
51351 Milford 4,988 46 $74k $273k 100%
51347 Lake Park 1,470 18 $83k $202k 100%
51355 Okoboji 1,048 413 $72k $421k 100%
51331 Arnolds Park 935 583 $89k $449k 100%
51364 Terril 803 13 $67k $157k 76%
51363 Superior 111 262 $76k $83k 100%

Partly in Dickinson County

Residential ZIP codes mainly in another county that reach at least 1% into Dickinson County, by their share here
In this county
51338 Everly 852 12 $58k $125k 21%
51334 Estherville 6,960 37 $58k $112k 11%
51345 Harris 347 6 $54k $142k 3%

Download the 10 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

5 ZIP codes of Dickinson County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Dickinson County and in the neighboring counties
ZIPIn DickinsonElsewhere
5136097%Jackson County3%
5133411%Emmet County89%
5133821%Clay County79%
5136476%Clay County13%; Emmet County12%
513453%Osceola County97%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Dickinson County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Dickinson County starts with 513.

Three-digit prefixes of Dickinson County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Dickinson County's
PrefixSectional centerHereAll codes
513Sioux Falls, SD (SCF 570)1023

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.