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Ottawa, IL
City in LaSalle County, Illinois. ZIP codes: 61350.
Population
18,447
Land area
14.9sq mi
People per sq mi
1,238
ZIP codes
1
Ottawa and its ZIP codes
Ottawa at a glance
- Ottawa is about 5.4 times as dense as Illinois as a whole.
- By population, it ranks 136th among 1,445 cities and towns in Illinois.
- The median household income is $71,413, 14% below the Illinois median of $83,390.
- A typical owner-occupied home is valued at $154,000 (42% below Illinois) and median rent is $920 a month.
Local data for Ottawa, IL
Counts from official public data
Housing and community stats
Ottawa, IL, American Community Survey 2020-2024
Median household income
$71,413
Poverty rate
17.3%
Median home value
$154,000
Median rent
$920/mo
Homeownership
69.7%
Bachelor's or higher
23.3%
Median age
39.8
Average commute
22.7 min
Largest reported origins and ancestries: German Americans (4,719), Irish Americans (3,025), Mexican Americans (1,699).
Economy and federal money
Jobs, pay, income and spending are for LaSalle County. PPP loans are for Ottawa.
Unemployment rate
4.4%
Aug 2026, -1.2 pts in a year
Average annual pay
$60,975
38,720 jobs, 2025
Income per person
$57,510
BEA, 2024
Federal spending
$719M
FY 2026, $6,555 per person
PPP loans
$50.28M
805 loans, 6,399 jobs reported
How people get to work
Ottawa, IL, workers 16 and older. American Community Survey 5-year estimates
- Drove alone82.2%
- Carpooled9.9%
- Public transit0.2%
- Walked0.6%
- Bicycle0.3%
- Taxi, ride-hailing, motorcycle or other1.5%
- Worked from home5.2%
Average one-way commute: 22.7 minutes for people who do not work from home.
Environment and hazard risk
Ottawa, IL, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Moderate
Top: cold wave
Storm events since 1996
825
Countywide, mostly thunderstorm wind
Flood insurance policies
222
0.5% of homes, county
July high / Jan low
83° / 15°F
36.2 inches of rain a year
Hazards, floods and storm historyCheck a flood zone4 historic places
Health statistics
Share of adults in Ottawa, IL, CDC PLACES estimates
Obesity
38.1%
U.S. 33.3% +4.8 pts
Diabetes
12.6%
U.S. 12.1% +0.5 pts
Smoking
15.6%
U.S. 12.8% +2.8 pts
Uninsured (18-64)
9.1%
U.S. 11.1% -2.0 pts
ZIP codes in Ottawa
1 in or overlapping Ottawa. Population shown
Cities near Ottawa
| Name | Distance | Land area (sq mi) |
|---|---|---|
| NaplateVillage | 2.5 mi | 0.2 |
| DaytonCensus-designated place | 3.4 mi | 1.8 |
| WedronCensus-designated place | 6.8 mi | 0.5 |
| Grand RidgeVillage | 8.1 mi | 0.5 |
| MarseillesCity | 9.2 mi | 9 |
| North UticaVillage | 9.2 mi | 3.5 |
| LaSalleCity | 11 mi | 13.5 |
| SerenaCensus-designated place | 11 mi | 0.2 |
| HardingCensus-designated place | 11 mi | 0.2 |
| SenecaVillage | 12 mi | 6.2 |
| OglesbyCity | 13 mi | 5 |
| LeonoreVillage | 14 mi | 0.1 |
| TriumphCensus-designated place | 14 mi | 0.1 |
| KangleyVillage | 14 mi | 0.3 |
| PeruCity | 15 mi | 10.3 |
| Troy GroveVillage | 15 mi | 0.7 |
Frequently asked questions
- What county is Ottawa, IL in?
- Ottawa is in LaSalle County, Illinois.
- What ZIP codes are in Ottawa, IL?
- ZIP codes in or overlapping Ottawa include 61350.
- What is the population of Ottawa, IL?
- About 18,447 people live in Ottawa, based on American Community Survey 5-year estimates.
- What cities are near Ottawa?
- Nearby places include Naplate (2.5 mi), Dayton (3.4 mi), Wedron (6.8 mi), Grand Ridge (8.1 mi), Marseilles (9.2 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023