Costa Mesa City Hall is located at 77 Fair Drive, Costa Mesa, Calif. 92626.

The general phone number is (714) 754-5000. The City's hotline number is (714) 754-5100, which provides a listing of various City services, including: code enforcement services, graffiti removal, cable TV services, street parking enforcement, shopping cart removal, street sweeping and pothole repair.

The City Services Directory can be found here.

The City Staff Directory can be found here.

City Hall Office Hours: Monday-Friday, 8 a.m. to 5 p.m., with alternating Fridays closed.

Alternating Fridays City Hall will be closed for 2025:

• January 3, 17, 31 
• February 14, 28
• March 14, 28 
• April 11, 25 
• May 9, 23 
• June 6, 20 
• July 4, 18 
• August 1, 15, 29 
• September 12, 26
• October 10, 24
• November 7, 21
• December 5, 19

Holiday Closures for 2025:

• New Year’s Day 2025 Wednesday January 1
• Martin Luther King Day Monday January 20
• Presidents’ Day Monday February 17
• Memorial Day Monday May 26
• Juneteenth Thursday June 19
• Independence Day
• (Observed) Thursday July 3
• Labor Day Monday September 1
• Veterans’ Day Tuesday November 11
• Thanksgiving Holiday Thursday November 27
• Friday November 28
• City Hall Holiday Closure Wednesday – Friday December 24-
  January 2, 2026
• City Hall Will Reopen Monday January 5, 2026