City of Costa Mesa
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Costa Mesa has two branch libraries which are operated by the Orange County Public Libraries.
The Donald Dungan Library
1855 Park Ave., (949) 646-8845. Open Monday through Thursday, 10 a.m. to 7 p.m.; Friday, Saturday and Sunday, 9 a.m. to 5 p.m.
The Mesa Verde Library
2969 Mesa Verde Drive, (714) 546-5274. Open Monday through Thursday, 10 a.m. to 7 p.m.; Friday, Saturday and Sunday, 9 a.m. to 5 p.m.
Friends of Costa Mesa Libraries is the library support group.