Category:20th century in California by city

• 1930s in California by city‎ (3 C)
• 1940s in California by city‎ (3 C)
• 1950s in California by city‎ (3 C)
• 1960s in California by city‎ (4 C)
• 1970s in California by city‎ (5 C)
• 1980s in California by city‎ (6 C)
• 1990s in California by city‎ (7 C)

0–9

• 1900s in California by city‎ (3 C)
• 1910s in California by city‎ (3 C)
• 1920s in California by city‎ (3 C)

A

• 20th century in Anaheim, California‎ (3 C, 5 P)

B

• 20th century in Berkeley, California‎ (11 P)

L

• 20th century in Los Angeles‎ (10 C, 34 P)

O

• 20th century in Oakland, California‎ (4 C, 6 P)

P

• 20th century in Pasadena, California‎ (101 P)

S

• 20th century in Sacramento, California‎ (1 C, 4 P)
• 20th century in San Diego‎ (10 C, 3 P)
• 20th century in San Francisco‎ (12 C, 26 P)
• 20th century in San Jose, California‎ (2 C, 4 P)
• 20th century in Santa Monica, California‎ (12 P)