Waterloo
A city in Monroe County, Illinois — population 10,536 as of 2020.
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Tonight
64°F
Mostly Clear12% precip
Sunday
82°F
Sunny
Sunday Night
61°F
Partly Cloudy
Monday
81°F
Mostly Sunny6% precip
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Waterloo by the numbers
Population
10,536Population figure, 2020
Households & income
- Area
- 8.18 sq mi (21.19 km²), 0.13 sq mi water
- Median age
- 41.5
- Households
- 4,491
- Persons per household
- 2.4
- Median household income
- $98,711
- Median house value
- $249,500
Municipal office
- Office
- COLLECTOR-BUDGET OFFICER
- Address
- 100 W 4TH ST, WATERLOO, IL 62298