Janesville, IA zip code
Janesville, Iowa uses one zip code: 50647. Most of it is in Bremer County. Together these zip codes are home to about 2K people.
Zip codes
1
Population
2K
All zips combined
Largest zip
50647
1,978 residents
Zip codes in Janesville
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 50647 | 1,978 | $104,063 |