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Waterloo, Illinois
Waterloo is a city of 11,129 people in Monroe County, Illinois, founded in 1818.
Why visit Waterloo
Townapedia lists 4 museums and landmarks, 10 parks and trails, 19 places to eat, 1 place to stay and 3 attractions in and around town.
Highlights include Fountain Creek Bridge, RMC 8 Cinema, Waterloo Historic District and Peterstown House.
July is the warmest month, with average highs of 88°F; January lows average 22°F.
Weather in Waterloo
Forecast from the National Weather Service. Full forecast
About Waterloo
Waterloo is a city in and county seat of Monroe County, Illinois, United States. The population was 11,013 at the 2020 census, up from 9,811 in 2010.
From the Wikipedia article Waterloo, Illinois (this version), under CC BY-SA 4.0.
Things to do3
Fountain Creek Bridge
Bridge · National Register of Historic Places · 2.6 mi
Bridge in United States of America
Museums and landmarks4
Waterloo Historic District
Monument and historic site · National Register of Historic Places · 0.4 mi
Listed on the National Register of Historic Places
Peterstown House
Monument and historic site · National Register of Historic Places
Parks, trails and playgrounds10
Restaurants and cafes19
Ja Bowl Asian Express
Restaurant · Chinese · 0.4 mi
101 North Market Street, Waterloo
Mo-Th 11:00-21:30; Fr-Sa 11:00-22:00; Su off
7 more on the map.
Where to stay1
Churches and places of worship6
Saints Peter and Paul Catholic Church
Church · Roman Catholic · 0.4 mi
204 West Mill Street, Waterloo
Shopping3
Gas and EV charging5
Schools, colleges and libraries12
Healthcare1
Map of Waterloo
64 places. The map loads OpenStreetMap tiles when you open it.
Climate by month
Monthly table
| Month | High | Low | Rain | Snow |
|---|---|---|---|---|
| Jan | 41°F | 22°F | 2.7 in | 2.1 in |
| Feb | 46°F | 25°F | 2.5 in | 2.7 in |
| Mar | 56°F | 34°F | 4.0 in | 1.1 in |
| Apr | 68°F | 44°F | 4.9 in | 0.2 in |
| May | 76°F | 54°F | 4.8 in | 0.0 in |
| Jun | 85°F | 63°F | 4.7 in | 0.0 in |
| Jul | 88°F | 67°F | 3.8 in | 0.0 in |
| Aug | 87°F | 65°F | 3.6 in | 0.0 in |
| Sep | 81°F | 57°F | 3.4 in | 0.0 in |
| Oct | 70°F | 46°F | 2.8 in | 0.0 in |
| Nov | 56°F | 35°F | 3.5 in | 0.6 in |
| Dec | 45°F | 26°F | 2.8 in | 2.5 in |
U.S. Climate Normals 1991-2020 for Festus (15 mi away), NOAA NCEI.
People and cost of living
American Community Survey 5-year estimates, 2020-2024, U.S. Census Bureau. Estimates have margins of error, larger for small towns.
Disaster history
Monroe County has had 9 federal disaster declarations since 2000, most often for severe storms.
- 2023-08-15: Severe Storms And Flooding (Severe Storm)
- 2020-03-26: Covid-19 Pandemic (Biological)
- 2020-03-13: Covid-19 (Biological)
- 2019-09-19: Severe Storms And Flooding (Flood)
- 2013-05-10: Severe Storms, Straight-Line Winds, And Flooding (Flood)
- 2008-06-24: Severe Storms And Flooding (Severe Storm)
OpenFEMA disaster declarations summaries.
Getting there and nearby towns
Saint Louis Downtown - Parks Airport (CPS) is the nearest airport with scheduled flights listed in OpenStreetMap, 16 miles away.
- Columbia 9 mi northwest, about 14 min by car
- Belleville 15 mi northeast, about 24 min by car
- Cahokia Heights 16 mi north, about 26 min by car
- Swansea 17 mi northeast, about 27 min by car
- East St. Louis 19 mi north, about 31 min by car
- Fairview Heights 19 mi northeast, about 31 min by car
- Shiloh 19 mi northeast, about 31 min by car
- St. Louis 21 mi north, about 34 min by car
- O'Fallon 22 mi northeast, about 35 min by car
- Collinsville 25 mi north, about 40 min by car
Drive times are estimates from straight-line distance, not routes.
Local news
Headlines from INDB, the NEMICO news database.
Reviews, tips and questions
Loading what members have shared...
Sources and licences
- NCES EDGE (Public domain): public schools
- NOAA NCEI U.S. Climate Normals 1991-2020 (Public domain): climate by month
- OpenFEMA (Public domain): disaster declarations
- OpenStreetMap contributors (ODbL 1.0): places, airports, map data
- U.S. Census Bureau (Public domain): population, income, housing, education, commute
- Wikidata (CC0 1.0): elevation, founding date, time zone, website, landmarks and historic places
- Wikimedia Commons (see each image): photos
- Wikipedia (CC BY-SA 4.0): overview and history text
Photo credits
- Monroe County Courthouse, Waterloo, Nyttend, Public domain
- JV's (Waterloo, Illinois), pasa47, CC BY 2.0
- Hidden Mural in Waterloo, pasa47, CC BY 2.0
- Waterloo, Il - 16368365922, pasa47, CC BY 2.0
- Waterloo, Il - 40179279150, pasa47, CC BY 2.0
- Capitol Theater (Waterloo, Illinois), pasa47, CC BY 2.0
- Monroe County Courthouse (Waterloo, Illinois), pasa47, CC BY 2.0
- Waterloo, Il - 16183060289, pasa47, CC BY 2.0
- Church Steeple (Waterloo, Illinois), pasa47, CC BY 2.0
- Independent Order of Odd Fellows (Waterloo, Illinois), pasa47, CC BY 2.0
- Footprints (Waterloo, Illinois), pasa47, CC BY 2.0
- Waterloo, Il, pasa47, CC BY 2.0
- IOOF (Waterloo, Illinois), pasa47, CC BY 2.0
- Waterloo, Il - 40179893870, pasa47, CC BY 2.0
- Waterloo, Il - 16369006505, pasa47, CC BY 2.0
- Statue (Waterloo, Illinois), pasa47, CC BY 2.0
- Waterloo, Il - 41942019302, pasa47, CC BY 2.0
- Waterloo Mansion, pasa47, CC BY 2.0
- Waterloo, Il - 41942018382, pasa47, CC BY 2.0
- Waterloo, Il - 41942022862, pasa47, CC BY 2.0
- Bed & Breakfast (Waterloo, Illinois), pasa47, CC BY 2.0
- Peterstown House, Nyttend, Public domain
- Video Gaming - Play Here, pasa47, CC BY 2.0
- Big Butt Doppelbock, pasa47, CC BY 2.0
- Gallagher's - 16181639758, pasa47, CC BY 2.0
- Gem Cleaners, pasa47, CC BY 2.0
- Gallagher's, pasa47, CC BY 2.0
- T.R. Pullis & Sons, pasa47, CC BY 2.0
- O.B. McClintock Co, pasa47, CC BY 2.0
- Miss Mary Ziebold, pasa47, CC BY 2.0
- Monroe County Courthouse - 15746483124, pasa47, CC BY 2.0
- Sunset Motel, pasa47, CC BY 2.0
- Bean Tree Cafe, pasa47, CC BY 2.0
- Fountain Creek Bridge, Nyttend, Public domain
- Scottrade center 2010, Chris Yunker, CC BY 2.0
- Sunset Motel - No Vacancy, pasa47, CC BY 2.0
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Page built October 30, 2026. Spotted a mistake? Tell us or suggest a place.