Chiang Mai is the digital nomad capital of Southeast Asia. Monthly cost of living: budget 13,300-22,500 THB ($380-640), comfortable 30,500-51,800 THB ($870-1,480), premium 56,800-104,500 THB ($1,620-2,990). Internet: 100+ Mbps fiber widely available. Best neighborhoods: Nimmanhaemin (trendy, cafes, 10-25K THB/month rent), Old City (cultural, walkable, 5-15K THB), Santitham (local, quiet, 5-12K THB), Chang Phueak (foodie, relaxed, 6-14K THB). Top coworking: CAMP at MAYA (free), Punspace (200 THB/day), Hub53 (250 THB/day). Visa options: DTV digital nomad visa (180 days, $280), tourist visa (60 days), education visa (1 year). Pros: affordable, fast internet, great food, large community. Cons: burning season Feb-Apr, expat bubble risk.