Assumption, Illinois
City · Population 1,123 · #618 in Illinois
About Assumption
Assumption, IL is a small town located in southern Illinois with an estimated population of 1,123.
Officially, Assumption is an incorporated city with its own municipal government. The community covers 0.99 square miles, giving it a balanced suburban layout with room to breathe at roughly 1,134 residents per square mile.
📰 Assumption News Today
- Monthly Weather Forecast for Assumption, Illinois 62510 The Weather Channel · Dec 28
- Joan Odell Walden Obituary May 12, 2026 Howe and Yockey Funeral Homes · May 12
- Assumption Air Quality Index (AQI) and USA Air Pollution IQAir · Jun 22
- Larry Cranmer Obituary - Oklahoma City, OK Dignity Memorial · Jun 12
- Jane S. Beck Obituary (1942 - 2026) - Mendon, IL - WGEM Legacy obituary · Jul 22
Live headlines via Google News — updates through the day.
What Makes Assumption Unique
- The only place in America named Assumption — a truly one-of-a-kind name among 32,000+ US communities.
- Positioned in southern 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
- Small-town pace of life: less traffic, more community, and neighbors who wave.
- Housing dollars stretch further here than in the nearest metro.
- Well connected: 3+ neighboring communities within 9 miles.
🏫 Schools in Assumption
- Bond Primary
- Central A & M Middle School
- Kemmerer Village School
Public schools, U.S. Dept. of Education (NCES) 2023–24 directory.
⚡ Quick Facts
StateIllinois
TypeCity
Population (2024)1,123
Rank in state#618 of 1,294
Land area0.99 sq mi
Density1,134/sq mi
Coordinates39.5180, -89.0477