One of the most destructive urban fires in U.S. history, killing ~300 people and prompting major rebuilding and fire-code reforms in Chicago.
Key Facts
- Deaths
- Approximately 300
- Structures destroyed
- 17,000
- Area burned
- 3.3 square miles
- Residents left homeless
- More than 100,000
- Duration
- October 8–10, 1871
By the Numbers
Location
Cause → Event → Consequence
A prolonged period of hot, dry, and windy weather, combined with the predominantly wooden construction of Chicago's buildings and infrastructure, created conditions in which a fire starting in a southwest neighborhood could spread with exceptional speed across the city.
The fire burned from October 8 to 10, 1871, leaping the south branch of the Chicago River to devastate central Chicago, then crossing the main stem of the river to consume the Near North Side, destroying roughly 17,000 structures over approximately 3.3 square miles and killing around 300 people.
Relief poured in from across the United States and abroad, including a donation from the United Kingdom that helped establish the Chicago Public Library. City authorities revised building codes to require more fire-resistant construction, and Chicago rebuilt rapidly under those higher standards, accelerating its growth into a major American metropolis.
Human Cost
Each dot represents approximately 10,000 deaths. Total estimated: 300 (fire)