Riley, Illinois

Riley: human settlement in Illinois, United States of America

About

Riley is a city located in the county of McHenry in the U.S. state of Illinois. Its population at the 2010 census was 2,922. After 10 years in 2020 city had an estimated population of 2,823 inhabitants.

Quick Facts about Riley

Population 2,823 (2020)
Country United States of America
State Illinois (United States)
County McHenry County
Latitude & Longitude 42.1914,-88.6326
Altitude 2,648 feet / 807 meters
Time Zone America/Chicago
Local time 10:25:16 (18th April 2026)
Population growth -3.51% (2010-2020)
Weather 50℉ Rain Showers Likely then Mostly Sunny 7-days weather

Geography

Riley is located at 42°11'29"N 88°37'57"W (42.1914100, -88.6325900).

Riley map

Click "full screen" full screen map icon to open full mode. View satellite images

Weather

50°F
Rain Showers Likely then Mostly Sunny
15 to 20 mph WNW Saturday

Rain showers likely before 9am. Mostly sunny, with a high near 50. Chance of precipitation is 70%.

7-Day Forecast

Demographics

According to census records, the population of Riley decreased by 3.51% in 10 years.

Year Population % Change Method
2010 2,922 - census
2011 2,922 0% estimation process
2012 2,912 -0.34% estimation process
2013 2,893 -0.66% estimation process
2014 2,884 -0.31% estimation process
2015 2,876 -0.28% estimation process
2016 2,862 -0.49% estimation process
2017 2,861 -0.03% estimation process
2018 2,859 -0.07% estimation process
2019 2,847 -0.42% estimation process
2020 2,823 -0.85% estimation process

Nearby Schools and Colleges

Schools and campuses linked to Riley, IL. Select a name to open its map and contact details.

Code Name City ZIP
147004 McHenry County College Crystal Lake (IL) 60012-2761

Nearby Transit Stations (19)

Rail and bus stations connected to Riley, IL. Select a station to open its map and address details.

Code Name Address Type
RCK Rockford, Illinois 7559 Walton St. BUS
BET South Beloit, Illinois 15766 Manchester Road BUS
PLO Plano 101 West Main Street RAIL
NPV Naperville 105 E. Fourth Ave. RAIL
JVL Janesville, Wisconsin 3120 North Pontiac Drive BUS

Closest post offices linked to Riley.

Post Office Name City ZIP
Mareng Post Office Marengo (IL) 60152

Other places with the same name (3)

  • Riley, Michigan township in Clinton County, Michigan with a population of 3,272 people.
  • Riley, Kansas City in Riley County, Kansas, United States with a population of 955 people.
  • Riley, Indiana human settlement in Vigo County, Indiana, United States of America with a population of 217 people.

Other cities in McHenry County

Cities, towns, neighborhoods & other populated places in McHenry County , IL. (more)

City Name Population Title
Crystal Lake 39,642 City located in McHenry County, Illinois, USA
Algonquin 30,730 Village in Illinois
Lake in the Hills 28,345 Village in Illinois
Huntley 27,256 Village in McHenry and Kane counties, Illinois, United States
McHenry 27,100 City in Illinois
Cary 17,929 Village in Illinois, United States
Harvard 8,979 Private research university in Cambridge, Massachusetts, United States
Chemung 8,702 Township in McHenry County, Illinois
Marengo 7,377 City in McHenry County, Illinois, United States
Johnsburg 6,310 Village in United States of America
Lakemoor 5,912 City in Illinois, United States of America
Spring Grove 5,679 City in Houston County, Minnesota, United States
Fox River Grove 4,518 City in United States of America
Lawrence 4,380 Township in Lawrence County, Illinois
Wonder Lake 3,837 Human settlement in Illinois, United States of America
Pistakee Highlands 3,454 Census designated place

Distance to Other Cities

Riley distances to largest Illinois cities