Ottawa, IL zip code
Ottawa, Illinois uses one zip code: 61350. Most of it is in LaSalle County. Together these zip codes are home to about 24K people.
Zip codes
1
Population
24K
All zips combined
Largest zip
61350
23,713 residents
Zip codes in Ottawa
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 61350 | 23,713 | $77,921 |