County ZIP codes · Iowa · FIPS 19035
Cherokee County, IA ZIP Codes
Cherokee County, Iowa has 15 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 8 of the residential ones lie mainly in Cherokee County and 7 mainly in a neighboring county; 10 cross the county line. Median household income ranges from $63,036 in 51058 (Sutherland) to $84,125 in 51046 (Paullina) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Cherokee County?
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 $65,543 and $75,938.
They carry 15 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 15 residential ZIP codes in Cherokee County
8 ZIP codes lie mainly in Cherokee County; 7 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 51012 | Cherokee | 6,311 | 43 | $70k | $151k | 100% |
| 51035 | Marcus | 1,627 | 15 | $79k | $210k | 99% |
| 51005 | Aurelia | 1,561 | 17 | $76k | $169k | 86% |
| 51014 | Cleghorn | 549 | 10 | $70k | $133k | 100% |
| 51049 | Quimby | 448 | 10 | $57k | $106k | 100% |
| 51061 | Washta | 389 | 8 | $49k | $78k | 79% |
| 51037 | Meriden | 327 | 14 | $59k | $235k | 100% |
| 51029 | Larrabee | 261 | 10 | $86k | – | 85% |
Partly in Cherokee County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 51048 | Pierson | 435 | 12 | $83k | $103k | 40% |
| 51047 | Peterson | 693 | 9 | $101k | $130k | 13% |
| 51025 | Holstein | 1,925 | 18 | $66k | $119k | 13% |
| 51020 | Galva | 632 | 11 | $80k | $93k | 12% |
| 51058 | Sutherland | 1,096 | 13 | $63k | $133k | 6% |
| 51046 | Paullina | 1,326 | 14 | $84k | $160k | 5% |
| 51002 | Alta | 2,787 | 25 | $71k | $167k | 1% |
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?
11 ZIP codes of Cherokee County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Cherokee | Elsewhere |
|---|---|---|
| 51002 | 1% | Buena Vista County 99% |
| 51025 | 13% | Ida County 87% |
| 51035 | 99% | |
| 51005 | 86% | Buena Vista County 14% |
| 51046 | 5% | O'Brien County 95% |
| 51058 | 6% | O'Brien County 93%; Clay County 1% |
| 51047 | 13% | Clay County 55%; Buena Vista County 27%; O'Brien County 5% |
| 51020 | 12% | Ida County 71%; Sac County 13%; Buena Vista County 4% |
| 51048 | 40% | Woodbury County 49%; Plymouth County 11% |
| 51061 | 79% | Ida County 21% |
| 51029 | 85% | O'Brien County 15% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Cherokee 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 Cherokee County starts with 510.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 510 | Sioux Falls, SD (SCF 570) | 15 | 55 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.