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Rio, IL
Village in Knox County, Illinois.
Population
205
Land area
0.3sq mi
People per sq mi
656
ZIP codes
0
Rio and its ZIP codes
Rio at a glance
- Rio is about 2.9 times as dense as Illinois as a whole.
Local data for Rio, IL
Counts from official public data
Economy and federal money
Jobs, pay, income and spending are for Knox County. PPP loans are for Rio.
Unemployment rate
4.4%
Aug 2026, -1.2 pts in a year
Average annual pay
$49,451
17,188 jobs, 2025
Income per person
$51,995
BEA, 2024
Federal spending
$351M
FY 2026, $7,027 per person
Environment and hazard risk
Rio, IL, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: strong wind
Storm events since 1996
476
Countywide, mostly thunderstorm wind
Flood insurance policies
29
0.1% of homes, county
July high / Jan low
84° / 14°F
39.0 inches of rain a year
Health statistics
Share of adults in Rio, IL, CDC PLACES estimates
Obesity
34.6%
U.S. 33.3% +1.3 pts
Diabetes
11.3%
U.S. 12.1% -0.8 pts
Smoking
11.8%
U.S. 12.8% -1.0 pts
Uninsured (18-64)
6.5%
U.S. 11.1% -4.6 pts
Cities near Rio
| Name | Distance | Land area (sq mi) |
|---|---|---|
| North HendersonVillage | 4.3 mi | 0.2 |
| AlphaVillage | 5.8 mi | 0.3 |
| WoodhullVillage | 6.2 mi | 0.9 |
| HendersonVillage | 6.3 mi | 0.3 |
| WindsorVillage | 6.9 mi | 0.4 |
| WatagaVillage | 8.5 mi | 0.8 |
| AlexisVillage | 8.9 mi | 0.5 |
| OneidaCity | 9.3 mi | 0.8 |
| OphiemCensus-designated place | 10 mi | 1.2 |
| GalesburgCity | 11 mi | 17.8 |
| NekomaCensus-designated place | 12 mi | 0.1 |
| ViolaVillage | 12 mi | 0.8 |
| SwedonaCensus-designated place | 12 mi | 0.3 |
| East GalesburgVillage | 12 mi | 1.4 |
| AltonaVillage | 12 mi | 0.9 |
| Lynn CenterCensus-designated place | 13 mi | 0.2 |
Frequently asked questions
- What county is Rio, IL in?
- Rio is in Knox County, Illinois.
- What is the population of Rio, IL?
- About 205 people live in Rio, based on American Community Survey 5-year estimates.
- What cities are near Rio?
- Nearby places include North Henderson (4.3 mi), Alpha (5.8 mi), Woodhull (6.2 mi), Henderson (6.3 mi), Windsor (6.9 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023