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Waterloo, Illinois

City · Population 11,165 · #207 in Illinois

About Waterloo

Waterloo, IL is a close-knit town located in southwestern Illinois with an estimated population of 11,165.

Officially, Waterloo is an incorporated city with its own municipal government. The community covers 8.29 square miles, giving it a balanced suburban layout with room to breathe at roughly 1,347 residents per square mile.

What Makes Waterloo Unique

  • One of 10 places in the US named Waterloo — but the Illinois one has a character all its own.
  • Positioned in southwestern Illinois, convenient to the region's corridors and crossings.
  • Part of the fabric of Illinois — one of 1,461 recognized communities statewide.

Why People Love It Here

  • The sweet spot: real amenities without big-city congestion.
  • Local businesses and schools anchored by a stable resident base of 11,165.
  • Well connected: 3+ neighboring communities within 9 miles.

🍽️ Where to Eat in Waterloo

  • Applebee's — american
  • China King — chinese
  • Pizza Hut — pizza
  • Tequila Mexican Restaurant — mexican
  • Denny's — american
  • Family Kitchen — american
  • Gallager's
  • Ja Bowl Asian Express — chinese
  • Washy's Saloon

Local spots mapped by the OpenStreetMap community.

🎡 Fun Things to Do

  • Bellefontaine House · Museum
  • Historic Peterstown House · Museum

Attractions mapped by the OpenStreetMap community.

🏞️ Parks & Outdoors in Waterloo

Parks mapped by the OpenStreetMap community · "reviews" opens each park's live Google reviews.

🏫 Schools in Waterloo

  • Gardner Elementary School
  • Rogers Elem School
  • W J Zahnow Elem School
  • Waterloo High School
  • Waterloo Junior High School

Public schools, U.S. Dept. of Education (NCES) 2023–24 directory.

⚡ Quick Facts

TypeCity
Population (2024)11,165
Rank in state#207 of 1,294
Land area8.29 sq mi
Density1,347/sq mi
Coordinates38.3412, -90.1527

🗺️ Map of Waterloo