Ottawa
A city in LaSalle County, Illinois — population 18,097 as of 2020.
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This Afternoon
75°F
Scattered Rain Showers48% precip
Tonight
49°F
Scattered Rain Showers then Patchy Fog27% precip
Monday
76°F
Patchy Fog then Mostly Sunny2% precip
Monday Night
69°F
Partly Cloudy then Chance Showers And Thunderstorms30% precip
In and around Ottawa
See & do
- 807 Conference Center
- Allen Park
- Anytime Fitness
- Cambridge Square Senior Apartments
- Dayton Ridge Golf Course
Eat, drink & stay
- Alfanos pizza and italian foods in Ottawa IL
- Aqua Spa Salon
- Bailey's Place Gaming Cafe
- ALFI Management LLC
- Bar Stars Pub
Shops & services
+311 more on the mapMusicians & bands near Ottawa →
Explore the Greater Ottawa metro →
Ottawa changes faster than we can keep up.
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Ottawa by the numbers
Population
18,097Population figure, 2020
Households & income
- Area
- 14.89 sq mi (38.57 km²), 0.86 sq mi water
- Median age
- 39.8
- Households
- 7,553
- Persons per household
- 2.4
- Median household income
- $71,413
- Median house value
- $154,000
Municipal office
- Office
- CITY CLERK
- Address
- 301 W MADISON ST, OTTAWA, IL 61350
Photo:
IvoShandor · CC BY-SA 3.0