County ZIP codes · Iowa · FIPS 19093
Ida County, IA ZIP Codes
Ida County, Iowa has 12 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 6 of the residential ones lie mainly in Ida County and 6 mainly in a neighboring county; 11 cross the county line. Median household income ranges from $51,875 in 51016 (Correctionville) to $73,768 in 51461 (Schleswig) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Ida 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 $64,688 and $72,534.
They carry 12 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 12 residential ZIP codes in Ida County
6 ZIP codes lie mainly in Ida County; 6 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 51445 | Ida Grove | 2,485 | 20 | $65k | $115k | 100% |
| 51025 | Holstein | 1,925 | 18 | $66k | $119k | 87% |
| 51006 | Battle Creek | 1,287 | 16 | $76k | $85k | 86% |
| 51020 | Galva | 632 | 11 | $80k | $93k | 71% |
| 51018 | Cushing | 542 | 17 | $61k | $315k | 56% |
| 51431 | Arthur | 430 | 11 | $54k | $80k | 89% |
Partly in Ida County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 51061 | Washta | 389 | 8 | $49k | $78k | 21% |
| 51448 | Kiron | 612 | 11 | $76k | $176k | 18% |
| 51019 | Danbury | 448 | 5 | $75k | $106k | 12% |
| 51053 | Schaller | 1,016 | 14 | $73k | $92k | 11% |
| 51016 | Correctionville | 1,080 | 10 | $52k | $89k | 9% |
| 51461 | Schleswig | 1,097 | 20 | $74k | $183k | 7% |
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 Ida County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Ida | Elsewhere |
|---|---|---|
| 51025 | 87% | Cherokee County 13% |
| 51006 | 86% | Woodbury County 12%; Crawford County 2% |
| 51461 | 7% | Crawford County 93% |
| 51016 | 9% | Woodbury County 91% |
| 51053 | 11% | Sac County 89% |
| 51020 | 71% | Sac County 13%; Cherokee County 12%; Buena Vista County 4% |
| 51448 | 18% | Crawford County 62%; Sac County 20% |
| 51018 | 56% | Woodbury County 44% |
| 51019 | 12% | Woodbury County 79%; Crawford County 8% |
| 51431 | 89% | Sac County 11% |
| 51061 | 21% | Cherokee County 79% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Ida County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Ida County's ZIP codes use 2 prefixes: 510 and 514.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.