Independent community site, not affiliated with any government.
HelpSponsor a town
USATownHub
Join your town
RI

Rio, Knox County, Illinois

Village in Knox County, Illinois · ZIP 61472

  • Knox County
  • Within Rio Township
  • Census data · ACS 2019-2023
Join RioAsk RioBusinessesPeople
  • 205 (2024 estimate)Population
  • 77Households
  • $62,917Median household income
  • $104,700Median home value
  • 1ZIP codes

About Rio

This page shows only what has been published about Rio: Census facts with their sources first, then its businesses, jobs, events, people in public roles, housing and questions as they are added. Nothing here is written by the town government.

Town intelligenceOfficial sources, refreshed yearly

Population, 2000 to 2020−12.9%
2002202402000: 24020002010: 22020102020: 2092020240209
Population of Rio at each census
CensusPopulation
2000240
2010220
2020209

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2000 Summary File 1: total population, place level, state 17, retrieved November 14, 2026; Census 2010 Summary File 1: total population, place level, state 17, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, place level, state 17, retrieved November 14, 2026.

Household income in Rio
Under $50k33.8%
$50k to $100k41.6%
$100k to $150k16.9%
$150k to $200k2.6%
$200k and over5.2%

Median household income $62,917 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.

Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, place level, state 17, retrieved November 14, 2026.

Housing tenure in Rio
Owner occupied
58 units
Renter occupied
19 units
Vacancy rate
10.5%

Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.

Source: American Community Survey 5-year data profile 2019–2023, place level, state 17, retrieved November 14, 2026.

Rio compared with its county and state
Rio compared with its county and state, American Community Survey 2019-2023
MeasureRioKnox CountyIllinois
Population21049,29412,692,653
Median household income$62,917$53,291$81,702
Median age36.042.438.9
Median home value$104,700$104,900$250,500
Bachelor’s degree or higher13.8%20.3%37.2%
Foreign-born residents1.9%3.3%14.4%
Owner-occupied homes75.3%69.8%66.8%
Mean commute to work25.2 minutes20.6 minutes28.1 minutes

Source: American Community Survey 5-year data profile 2019–2023, place level, state 17, retrieved November 14, 2026.

CommunityRules and moderation

Log in to post in Rio.
Latest in RioEvery post is checked before neighbours see it.

Loading…

Events in RioAll events

Coming up in RioAll events

No upcoming event is listed in Rio yet. Members and businesses add events from the Events page; each is screened before it shows.

Schools

No public school is listed for Rio: either the NCES directory for Illinois is not loaded yet, or no school's address falls inside Rio’s boundary. Schools in neighbouring towns are on their pages.

Frequently asked about RioPromoted from questions people asked

No question about Rio has been asked often enough to publish an answer yet. Ask Rio and the answer, once a person checks it, appears here.

Nearby towns

Other towns in Knox County

All towns in Knox County

Other places named Rio in Illinois