Introduction to Waterloo, Illinois

Waterloo, Illinois, in Monroe county, is 21 miles S of St. Louis, Missouri. The city is included in the Saint Louis metropolitan area.

Waterloo History

Waterloo was first settled in by French explorers in the 1600s. American settlement in the area began with the arrival of James Garretson, Larken Rutherford and James Moore, who came from Virginia and Maryland. This was the first permanent settlement in the Northwest Territory. The plot of land, on which the community of Waterloo was established was purchased by Illinois State Senator George Forquer in 1818. German settlers began to arrive in the 1830s, which marked a considerable rise in the population of the area. Waterloo was officially incorporated in 1888.

Waterloo and nearby Attractions

  • Eugene Field House and Toy Museum
  • Peabody River State Fish & Wildlife Area
  • Fort de Chartres
  • Illinois Caverns State Natural Area
  • Missouri Botanical Garden

Things To Do In Waterloo

Local golfers can enjoy a round at Acorns Golf Links or at the Ridge Golf and Country Club. The St. Louis Zoo and World Aquarium is a popular local recreational spot. Local museums include the Eugene Field House and Toy Museum, the Carondelet Historic Center, the International Bowling Museum and Hall of Fame and the Museum of Westward Expansion. The community hosts the Monroe County Fair every July.

Waterloo Transportation

Lambert-St. Louis International Airport is nearby.

Waterloo Higher Education

Universities near Waterloo include Webster University, the University of Missouri-St. Louis and Washington University.


Total Population 10,151
Male Share of the Population 47.4%
Female Share of the Population 52.6%
Senior Citizens 15.3%
Employed Population 16+ 5,229
Age of the Population 41


% of people married 60.5%
Average household size 3

Education and Earnings

Population % with Bachelor Degree or Higher 24.4%
Median Earnings25+ $45,612
Median Earnings Without High School Qualification $27,292
Median Earnings With High School Degree $35,759


Median Family Income $84,293
% Above Poverty Level 96.3%
% Below Poverty Level 3.7%

Commute & Sprawl

Average Commute Time 30 minutes
% Working from Home 4.9%
% Walking and Biking to Work 0.6%
% Using Public Transportation 1.6%


People Living Alone 25.5%
Median Gross Rent $849
Median House Value $180,200


Other(often includes Hispanic and African American) 7.9%
US/American 0%
English 8.7%
Irish 21.5%

Source: American Community Survey, U.S. Census Bureau, 2015, www.census.gov/programs-surveys/acs/.

Waterloo Almanac

Category Value
Nearest Large City 21 miles S of St. Louis, Missouri
County Monroe
Metro Area Saint Louis
Standard Zip Codes 62298
Phone Area Codes 618
Time Zone Central (-6 hours from GMT)
Daylight Savings The city observes Daylight Saving Time.
Latitude 38.335
Longitude -90.149

Waterloo Climate

Nearest Weather Stations


  • Temp ranges are avg daily min and max for the month
  • Precipitation is rainfall (and rainfall equiv of snowfall)

Distance 0.2 miles
Jan Temp 20 to 38 F
Apr Temp 45 to 66 F
Jul Temp 68 to 89 F
Oct Temp 47 to 69 F
Annual Precip 42.1 inches
Station FESTUS
Distance 14.4 miles
Jan Temp 18 to 39 F
Apr Temp 41 to 67 F
Jul Temp 64 to 88 F
Oct Temp 42 to 70 F
Annual Precip 39.9 inches
Distance 26.7 miles
Jan Temp 22 to 39 F
Apr Temp 45 to 68 F
Jul Temp 68 to 91 F
Oct Temp 46 to 71 F
Annual Precip 39.6 inches

Neighborhood and Nearby Area Names

According to the US Postal Service, Waterloo, its neighborhoods, and/or surrounding areas are also referred to as:

Burksville (62298)

Floraville (62298)

Foster Pond (62298)

Lou del (62298)

Madonnaville (62298)

Monroe City (62298)

New Hanover (62298)

Paderborn (62298)

Saint Joe (62298)

Tipton (62298)

Wartburg (62298)

Note that not all alternate names are acceptable for use in US Post Office addresses.

Nearby Cities and Towns

Location Population Median Family Income
Columbia 10,029 $90,500
Hecker 467 $65,833

Source: American Community Survey, U.S. Census Bureau, 2015, www.census.gov/programs-surveys/acs/.

Waterloo Public Libraries

Morrison-talbott Library
Waterloo, Illinois
(618) 939-6232
Library Web Site

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More Information for Librarians

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Waterloo High Schools

Serves 877 students.
Student/teacher ratio: 16.8

Study Online in Waterloo

Career and College Resources

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Info for Waterloo Government Officials

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