County ZIP codes · Iowa · FIPS 19169
Story County, IA ZIP Codes
Story County, Iowa has 22 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 21 residential and 1 for PO boxes or a single organization. 15 of the residential ones lie mainly in Story County and 6 mainly in a neighboring county; 13 cross the county line. Median household income ranges from $60,731 in 50014 (Ames) to $130,083 in 50105 (Gilbert) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Story 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 $73,333 and $98,519.
They carry 18 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 21 residential ZIP codes in Story County
15 ZIP codes lie mainly in Story County; 6 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 50010 | Ames | 33,799 | 561 | $65k | $254k | 100% |
| 50014 | Ames | 32,958 | 608 | $61k | $337k | 56% |
| 50201 | Nevada | 8,320 | 71 | $81k | $193k | 100% |
| 50124 | Huxley | 4,859 | 234 | $115k | $305k | 74% |
| 50248 | Story City | 4,216 | 51 | $101k | $240k | 54% |
| 50013 | Ames | 4,211 | 6,600 | – | – | 100% |
| 50012 | Ames | 1,913 | 5,561 | – | – | 100% |
| 50236 | Roland | 1,761 | 52 | $85k | $199k | 100% |
| 50046 | Cambridge | 1,554 | 33 | $82k | $229k | 73% |
| 50105 | Gilbert | 1,487 | 163 | $130k | $275k | 100% |
| 50055 | Collins | 1,102 | 21 | $85k | $200k | 65% |
| 50056 | Colo | 1,003 | 16 | $73k | $185k | 100% |
| 50278 | Zearing | 891 | 19 | $74k | $193k | 100% |
| 50134 | Kelley | 770 | 40 | $111k | $300k | 73% |
| 50154 | McCallsburg | 394 | 17 | $69k | $188k | 84% |
Partly in Story County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 50161 | Maxwell | 2,296 | 29 | $99k | $257k | 41% |
| 50244 | Slater | 1,729 | 69 | $120k | $251k | 38% |
| 50243 | Sheldahl | 361 | 450 | $81k | $185k | 32% |
| 50247 | State Center | 2,004 | 24 | $92k | $181k | 7% |
| 50239 | Saint Anthony | 354 | 18 | $151k | $354k | 6% |
| 50206 | New Providence | 349 | 8 | $79k | $113k | 3% |
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?
13 ZIP codes of Story County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Story | Elsewhere |
|---|---|---|
| 50014 | 56% | Boone County 44% |
| 50124 | 74% | Polk County 26% |
| 50248 | 54% | Hamilton County 36%; Boone County 11% |
| 50161 | 41% | Polk County 56%; Jasper County 3% |
| 50247 | 7% | Marshall County 93% |
| 50244 | 38% | Polk County 60%; Boone County 2% |
| 50046 | 73% | Polk County 27% |
| 50055 | 65% | Jasper County 31%; Marshall County 4% |
| 50134 | 73% | Boone County 27% |
| 50154 | 84% | Hardin County 16% |
| 50243 | 32% | Polk County 37%; Boone County 31% |
| 50239 | 6% | Marshall County 94% |
| 50206 | 3% | Hardin County 81%; Marshall County 16% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 50011 | Ames |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Story County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Story County's ZIP codes use 3 prefixes: 500, 501 and 502.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 500 | Des Moines, IA (SCF 500) | 8 | 68 |
| 501 | Des Moines, IA (SCF 500) | 5 | 69 |
| 502 | Des Moines, IA (SCF 500) | 9 | 65 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.