Johnston ZIP code, Iowa
The ZIP code for Johnston, IA is 50131, and its area code is 515.
- USPS city name
- 1 ZIP code
- Overlapping the city
- 3 more
- Population
- 24,384
- Area code
- 515
- County
- Polk County
- State
- Iowa
NANPA lists no telephone rate centre for Johnston itself, so these are the area codes of the nearest one, Des Moines (5.4 miles). A town on an area-code boundary can differ from its neighbour.
Mail addressed to Johnston uses the ZIP code above. 3 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.
Johnston in numbers
About 24,384 people live in Johnston, in 9,259 households, the 21st-largest of Iowa's 1,017 census places. The median household income is $106,551 a year, 42% above the Iowa median of $75,059 (US: $80,734). The median owner-occupied home is valued at $369,100 (77% above the Iowa median), and median gross rent is $1,338 a month. The median age is 37.4; 57.8% of adults 25 and over hold a bachelor's degree or higher (31.4% across Iowa); the average commute takes 20 minutes.
| Population | 24,384 |
|---|---|
| Households | 9,259 |
| Median age | 37.4 |
| Median household income | $106,551 |
| Median home value | $369,100 |
| Median gross rent | $1,338 |
| Bachelor's degree or higher | 57.8% |
| Mean commute | 19.7 min |
| Population density | 1,251 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Johnston city. Survey estimates carry margins of error, wider for small places. Sources and methods.
ZIP codes addressed as Johnston
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
50131 | Johnston , IA | Standard | 24,583 | $106,551 | $369,400 |
Other ZIP codes overlapping Johnston
These ZIP codes cover part of Johnston but are addressed as somewhere else.
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
50109 | Granger , IA | Standard | 3,309 | $118,669 | $370,100 |
50111 | Grimes , IA | Standard | 16,865 | $120,769 | $308,800 |
50322 | Urbandale , IA | Standard | 31,931 | $92,085 | $276,200 |
Map of Johnston ZIP codes
The ZIP codes of Johnston, IA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Johnston
The nearest larger towns are Urbandale (46,595 people, 4.8 mi), Ankeny (72,615 people, 6.9 mi) and Des Moines (212,421 people, 10 mi).
| Town | Population | Distance |
|---|---|---|
| Grimes | 16,366 | 4.1 mi |
| Urbandale | 46,595 | 4.8 mi |
| Saylorville | 3,366 | 5.1 mi |
| Windsor Heights | 5,143 | 6.1 mi |
| Polk City | 6,037 | 6.2 mi |
| Clive | 19,012 | 6.6 mi |
| Ankeny | 72,615 | 6.9 mi |
| Des Moines | 212,421 | 10.1 mi |
| West Des Moines | 71,083 | 10.2 mi |
| Waukee | 29,236 | 10.8 mi |
| Altoona | 21,495 | 12.9 mi |
| Pleasant Hill | 11,136 | 13.0 mi |
| Madrid | 2,808 | 13.6 mi |
| Bondurant | 8,560 | 14.1 mi |
More nearby: every ZIP code in Polk County · Iowa ZIP codes
Cite this page
zipcodes.pro. “Johnston, IA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ia/johnston
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