Chicago logs 198 sunny days a year to San Francisco's 276 — San Francisco wins by 78. Chicago and San Francisco match on outdoor-dinner months (4 vs 4).

Chicago runs about $3,665/mo for a balanced lifestyle against San Francisco's $5,450/mo — Chicago comes in $1,785 cheaper each month, roughly 49% less.

On mobility, San Francisco scores 4.0 vs Chicago's 3.4 (0–5 scale), with the biggest gap on airport accessibility. Chicago still holds an edge on cycling infrastructure.

Chicago and San Francisco score neck-and-neck on culture (4.4 vs 4.3, 0–5 scale).

San Francisco's nature & outdoors score of 4.5 sits well above Chicago's 3.5, with the biggest gap on sea access. Chicago still holds an edge on lakes & rivers.

Chicago's safety score of 2.5 sits well above San Francisco's 2.2, with the biggest gap on wildfire safety.

Chicago and San Francisco score neck-and-neck on career (4.7 vs 4.7, 0–5 scale).

Chicago and San Francisco score neck-and-neck on social & community (4.0 vs 4.1, 0–5 scale).

On food & dining, San Francisco scores 5.0 vs Chicago's 4.6 (0–5 scale), with the biggest gap on vegan & vegetarian options.

Chicago and San Francisco score neck-and-neck on family (4.0 vs 3.9, 0–5 scale).

On healthcare, San Francisco scores 3.5 vs Chicago's 2.8 (0–5 scale), with the biggest gap on private healthcare quality.

Chicago averages 8.5 µg/m³ (good) PM2.5 annually versus San Francisco's 7.5 µg/m³ (good) — San Francisco breathes ~12% cleaner air (1.0 µg/m³ lower).

Who Thrives Here