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Petersburg, Illinois

City · Population 2,156 · #466 in Illinois
Petersburg, Illinois

Petersburg is a city in and the county seat of Menard County, Illinois, United States, on the bluffs and part of the floodplain overlooking the Sangamon River. It is part of the Springfield, Illinois metropolitan area.

Photo & intro: Wikipedia

About Petersburg

Set in the western part of Illinois, Petersburg is a small town with an estimated population of 2,156.

Officially, Petersburg is an incorporated city with its own municipal government. The community covers 1.56 square miles, giving it a balanced suburban layout with room to breathe at roughly 1,382 residents per square mile.

What Makes Petersburg Unique

  • One of 13 places in the US named Petersburg — but the Illinois one has a character all its own.
  • Positioned in western 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

  • A tight community feel that bigger cities can't replicate.
  • Housing dollars stretch further here than in the nearest metro.
  • Well connected: 3+ neighboring communities within 8 miles.

🍽️ Where to Eat in Petersburg

  • Gillmore's Cafe — home style

Local spots mapped by the OpenStreetMap community.

🎡 Fun Things to Do

  • Menard County Historical Museum · Museum

Attractions mapped by the OpenStreetMap community.

🏞️ Parks & Outdoors in Petersburg

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

🏫 Schools in Petersburg

  • Petersburg Elem School
  • Porta Central
  • Porta High School

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

⚡ Quick Facts

TypeCity
Population (2024)2,156
Rank in state#466 of 1,294
Land area1.56 sq mi
Density1,382/sq mi
Coordinates40.0143, -89.8453

🗺️ Map of Petersburg