La Cañada Flintridge Los Angeles CountyCalifornia www.lacanadaflintridge.com Map Population 19,730 (2020)Area 8.63 sq mi (22.35 km²), 0.02 sq mi waterGovernment CITY OF LA CANADA FLINTRIDGEGovernment office 1327 FOOTHILL BLVD, LA CANADA FLINTRIDGE, CA 91011