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Ottawa, IL
Full City Profile · Illinois · LaSalle County County
3.1
/5.0
B
Good
18,714
Population
1,256/sq mi density
$73,011
Median Income
$37,776 per capita
$144,500
Home Value
$205,721 Zillow
$922
Median Rent
27.0% income on rent
50°F
Avg Temperature
275 sunny days/yr
150
Violent Crime/100K
1,513 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$73,011 median income, 4.0% unemployment
A+
Affordability
5.0 / 5.0
$144,500 home value, $922/mo rent
F
Safety
1.0 / 5.0
150 violent crimes/100K
C+
Education
2.8 / 5.0
21.9% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
+0.5%
18,640 → 18,741
over 10 years
Annual Pop. Growth
+0.05%
Compound annual growth rate
Median Income Change
+55.9%
$46,819 → $73,011
nominal, not inflation-adjusted
Annual Income Growth
+4.54%
Compound annual growth rate
Population Over Time
Total population for Ottawa across each available Census ACS release.
Median Household Income Over Time
Median household income reported by U.S. Census ACS. Values are nominal (not adjusted for inflation).
Projected 2030
Simple projections extrapolating the 2013–2023 compound annual growth rate forward. These are mathematical extensions of recent trends, not forecasts — real outcomes depend on migration, policy and economic shifts.
Projected Population 2030
18,807
+66 from 2023 (18,741)
Projected Median Income 2030
$99,624
+$26,613 from 2023 ($73,011)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 18,640 | — | $46,819 | — |
| 2015 | 18,439 | -1.1% | $46,477 | -0.7% |
| 2017 | 18,267 | -0.9% | $50,250 | +8.1% |
| 2019 | 18,139 | -0.7% | $51,288 | +2.1% |
| 2021 | 18,749 | +3.4% | $61,083 | +19.1% |
| 2023 | 18,741 | +-0% | $73,011 | +19.5% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.