Skip to content

Sections

Maps Timeline Graph Cosmos Life Culture Innovation People Climate Trends Art

© 2026 Vinony · Knowledge from Wikipedia, Wikidata, and 27 public APIs.

Waterloo · Vinony

EntityQ535870· pop 37· linked from 377 articles

Waterloo

Sign in to save

city in Monroe County, Illinois, USA

Key facts

Country: United States
State: Illinois
County: Monroe
Precincts: 16 , 17 , 18 , 19 , 26 , and 27
Total: 8.31 sq mi (21.53 km )
Land: 8.18 sq mi (21.19 km )
Water: 0.14 sq mi (0.35 km )
Elevation: 686 ft (209 m)
Density: 1,352.0/sq mi (522.02/km )
Time zone: UTC-6 ( CST )
Summer dst: UTC-5 ( CDT )
Fips code: 17-79150
Website: www .waterloo .il .us

via Wikipedia infobox

Article

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.

Geography

Connections

race and ethnicity in the United States Census

United States Census Bureau

Categories

1849 establishments in Illinois Cities in Illinois Cities in Monroe County, Illinois County seats in Illinois Metro East Populated places in the United States established in 1849 Waterloo, Illinois

Sources

wikipedia.externallinksexternallink

St. Charles County

Entity

list of municipalities in Illinois

municipal charter

Abraham Lincoln

Mississippi River

geographic coordinate system

What links here377 pages

Washington County

Similar entities

Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).

Entitydist 0.24

Waterloo Township

Entitydist 0.25

Entitydist 0.30

Entitydist 0.39

Entitydist 0.41

Entitydist 0.42

Entitydist 0.43

Category:Cities in Madison County, Illinois

Entitydist 0.43

Category:Cities in Lawrence County, Illinois

Entitydist 0.43

Entitydist 0.45

Category:Lawrence County, Illinois

Entitydist 0.46

Category:Cities in Alexander County, Illinois

Entitydist 0.47