Geography
Where failures cluster
Inspections carry coordinates but no neighbourhood, so we place each one inside its community area — the 77 units every other Chicago dataset joins on.
Inspections placed
Citywide fail rate
Highest
Lowest
The 77 community areas
Areas with fewer than 40 verdicts in the window are left unshaded rather than coloured on noise.
A darker area is not a worse neighbourhood. Fail rates move with what kinds of food business an area has, how many are inspected on complaint rather than schedule, and how many re-inspections follow — all before anything about how the kitchens are run. The map is a place to start a question, not an answer.