Ottawa, IL ZIP code
The ZIP code for Ottawa, Illinois is 61350. It is in LaSalle County.
- Population in these ZIPs
- 23,713
- Avg. median income
- $77,900population-weighted
- Typical home value
- $215,100population-weighted
- Metro area
- Ottawa, IL
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Ottawa, IL ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 61350 | 23,713 | $77,921 | $215,100 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Ottawa
- Utica 7 mi
- Marseilles 9 mi
- Grand Ridge 10 mi
- Oglesby 11 mi
- Serena 11 mi
- La Salle 11 mi
- Triumph 12 mi
- Troy Grove 13 mi
- Seneca 14 mi
- Sheridan 14 mi
- Leonore 14 mi
- Tonica 14 mi
Frequently asked questions
What is the ZIP code for Ottawa, IL?
The ZIP code for Ottawa, IL is 61350.
What county is Ottawa, Illinois in?
Ottawa ZIP codes are in LaSalle County.