Chicago 101 covers the basics every visitor and new resident should know: where the city is, how it is laid out, its history, its weather, who runs it and how locals talk. Start with Chicago at a glance, then go deeper.
Chicago basics
- Chicago at a glance — key facts, population, nicknames
- Geography and layout — the lake, the river, the sides and the street grid
- Chicago history — from trading post to global city
- Weather by month — averages, seasons and what to pack
- How Chicago government works — mayor, City Council, wards and 311
- Chicago’s economy — industries, employers and headquarters
- Slang and local tips — talk and get around like a local
- Chicago FAQ — quick answers to common questions
Getting around
- The Chicago L: complete guide — lines, fares and how to ride
- Airports
Related
- Chicago’s 77 community areas — all 77, with a guide to each
- Iconic Chicago foods
- Moving to Chicago
Last updated: October 31, 2026