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Dayton, IL
Census-designated place in LaSalle County, Illinois.
Population
271
Land area
1.8sq mi
People per sq mi
147
ZIP codes
0
Dayton and its ZIP codes
Dayton at a glance
- Dayton is 36% less dense than Illinois as a whole.
Economy and federal money
Jobs, pay, income and spending are for LaSalle County. PPP loans are for Dayton.
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
Environment and hazard risk
Dayton, 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
84° / 14°F
39.0 inches of rain a year
Health statistics
Share of adults in Dayton, IL, CDC PLACES estimates
Obesity
35.3%
U.S. 33.3% +2.0 pts
Diabetes
11.3%
U.S. 12.1% -0.8 pts
Smoking
13.1%
U.S. 12.8% about the same
Uninsured (18-64)
6.5%
U.S. 11.1% -4.6 pts
Cities near Dayton
| Name | Distance | Land area (sq mi) |
|---|---|---|
| OttawaCity | 3.4 mi | 14.9 |
| WedronCensus-designated place | 3.6 mi | 0.5 |
| NaplateVillage | 5.9 mi | 0.2 |
| SerenaCensus-designated place | 7.8 mi | 0.2 |
| MarseillesCity | 8 mi | 9 |
| HardingCensus-designated place | 9.4 mi | 0.2 |
| SenecaVillage | 11 mi | 6.2 |
| Grand RidgeVillage | 11 mi | 0.5 |
| SheridanVillage | 11 mi | 2.1 |
| North UticaVillage | 12 mi | 3.5 |
| LaSalleCity | 13 mi | 13.5 |
| TriumphCensus-designated place | 14 mi | 0.1 |
| NewarkVillage | 15 mi | 1.1 |
| EarlvilleCity | 15 mi | 1.2 |
| MillingtonVillage | 16 mi | 0.7 |
| LelandVillage | 16 mi | 0.5 |
Frequently asked questions
- What county is Dayton, IL in?
- Dayton is in LaSalle County, Illinois.
- What is the population of Dayton, IL?
- About 271 people live in Dayton, based on American Community Survey 5-year estimates.
- What cities are near Dayton?
- Nearby places include Ottawa (3.4 mi), Wedron (3.6 mi), Naplate (5.9 mi), Serena (7.8 mi), Marseilles (8 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023