County ZIP codes · Iowa · FIPS 19015
Boone County, IA ZIP Codes
Boone County, Iowa has 23 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 21 residential and 2 for PO boxes or a single organization. 8 of the residential ones lie mainly in Boone County and 13 mainly in a neighboring county; 16 cross the county line. Median household income ranges from $60,731 in 50014 (Ames) to $100,864 in 50248 (Story City) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Boone 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 $71,671 and $91,827.
They carry 21 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 21 residential ZIP codes in Boone County
8 ZIP codes lie mainly in Boone County; 13 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 50036 | Boone | 16,154 | 84 | $79k | $194k | 98% |
| 50156 | Madrid | 4,575 | 52 | $98k | $244k | 77% |
| 50212 | Ogden | 2,993 | 23 | $82k | $221k | 100% |
| 50276 | Woodward | 2,679 | 32 | $92k | $289k | 51% |
| 50223 | Pilot Mound | 236 | 8 | $47k | $87k | 100% |
| 50040 | Boxholm | 168 | 112 | $49k | $87k | 100% |
| 50152 | Luther | 138 | 355 | $94k | $183k | 100% |
| 50031 | Beaver | 51 | 241 | $74k | $56k | 100% |
Partly in Boone County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 50014 | Ames | 32,958 | 608 | $61k | $337k | 44% |
| 50220 | Perry | 9,216 | 92 | $72k | $149k | 33% |
| 50243 | Sheldahl | 361 | 450 | $81k | $185k | 31% |
| 50134 | Kelley | 770 | 40 | $111k | $300k | 27% |
| 50217 | Paton | 561 | 8 | $67k | $135k | 16% |
| 50107 | Grand Junction | 764 | 15 | $69k | $92k | 12% |
| 50249 | Stratford | 1,312 | 17 | $61k | $119k | 11% |
| 50064 | Dana | 100 | 5 | $97k | $162k | 11% |
| 50248 | Story City | 4,216 | 51 | $101k | $240k | 11% |
| 50235 | Rippey | 431 | 9 | $90k | $223k | 10% |
| 50039 | Bouton | 344 | 17 | $86k | – | 6% |
| 50530 | Dayton | 1,090 | 17 | $73k | $168k | 4% |
| 50244 | Slater | 1,729 | 69 | $120k | $251k | 2% |
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?
16 ZIP codes of Boone County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Boone | Elsewhere |
|---|---|---|
| 50014 | 44% | Story County56% |
| 50036 | 98% | Hamilton County2% |
| 50220 | 33% | Dallas County63%; Greene County4% |
| 50156 | 77% | Polk County16%; Dallas County7% |
| 50248 | 11% | Story County54%; Hamilton County36% |
| 50276 | 51% | Dallas County49% |
| 50244 | 2% | Polk County60%; Story County38% |
| 50249 | 11% | Hamilton County70%; Webster County19% |
| 50530 | 4% | Webster County96% |
| 50134 | 27% | Story County73% |
| 50107 | 12% | Greene County88% |
| 50217 | 16% | Greene County84% |
| 50235 | 10% | Greene County86%; Dallas County4% |
| 50243 | 31% | Polk County37%; Story County32% |
| 50039 | 6% | Dallas County94% |
| 50064 | 11% | Greene County89% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Boone County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Boone County's ZIP codes use 4 prefixes: 500, 501, 502 and 505.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 500 | Des Moines, IA (SCF 500) | 8 | 68 |
| 501 | Des Moines, IA (SCF 500) | 4 | 69 |
| 502 | Des Moines, IA (SCF 500) | 10 | 65 |
| 505 | Des Moines, IA (SCF 500) | 1 | 75 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.