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County Departments and Agencies
County of Los Angeles

Los Angeles County Department of Parks & Recreation vehicle at Whittier Narrows Recreation Area. Los Angeles Almanac Photo.


County Government General Information
Telephone Number: (213) 974-1234; TDD (800) 735-2929
Website: www.lacounty.gov/government


On July 6, 2022, Los Angeles County announced the launch of its newest department, the Department of Youth Development. The goal of the new agency is to transform the way County systems treat youth and invest in their development, well-being and safety.



Department/Agency Head Office
Aging & Disability 510 S Vermont Ave, 11th Flr, Los Angeles 90020
Phone (213) 291-0028
Agricultural Commissioner/Weights and Measures, Department of 12300 Lower Azusa Rd, Arcadia 91006
Phone (626) 575-5451
Alternate Public Defender 210 W Temple St, 18th Flr, Los Angeles 90012
Phone (213) 974-8150
Animal Care and Control 5898 Cherry Ave, Long Beach 90805
Phone (562) 728-4610
Arts and Culture 1055 Wilshire Blvd, Ste 800, Los Angeles 90017
Phone (213) 202-5858
Assessor 500 W Temple St, Rm 225, Los Angeles 90012
Phone (888) 807-2111; (213) 974-3101
Auditor-Controller 500 W Temple St, Rm 525, Los Angeles 90012
Phone (213) 974-0383
Beaches and Harbors, Department of 13837 Fiji Way, Marina del Rey 90292
Phone (424) 526-7771
Board of Supervisors, Executive Office 500 W Temple St, Rm 383, Los Angeles 90012
Phone (213) 974-1401
Chief Executive Office 500 W Temple St, Rm 713, Los Angeles 90012
Phone (213) 974-1101; TDD (800) 735-2929
Chief Information Office 350 S Figueroa St, Los Angeles 90071
Phone (213) 253-5600
Child Protection, Office of
NOT child protective services - see Children & Family Services
500 W Temple St, Los Angeles 90012
Phone [not provided]
Child Support Services Department 5770 S Eastern Ave, Commerce 90040
Phone (866) 901-3212; (323) 889-3340; TTY (866) 399-4096
Children and Family Services, Department of 425 Shatto Place, Los Angeles 90020
Phone (800) 540-4000 (within California); (213) 351-5600; (213) 639-4500 (outside California)
Community Development Commission 700 W Main St, Alhambra 91801
Phone: (626) 262-4511
Consumer and Business Affairs, Department of 500 W Temple St, Los Angeles 90012
Phone: (800) 593-8222 (within LA County); (213) 974-9750 (outside LA County)
Coroner (see Medical Examiner-Coroner)
County Clerk (see Registrar-Recorder/County Clerk)
County Counsel, Office of 500 W Temple St, Rm 648, Los Angeles 90012
Phone (213) 974-1801
Los Angeles County Development Authority 700 W Main St, Alhambra 91801
Phone (626) 262-4511
District Attorney, Office of 211 W Temple St, Ste 1200, Los Angeles 90012
Phone (213) 974-3512
Economic Opportunity 510 S Vermont Ave, 11th Flr, Los Angeles 90020
Phone (844) 777-2059
Executive Office (see Board of Supervisors, Executive Office)
Fire Department 1320 N Eastern Ave, Los Angeles 90063
Phone (213) 881-2401
Health Services, Department of 313 N Figueroa St, Rm 912, Los Angeles 90012
Phone (213) 240-8101
Human Resources 500 W Temple St, Rm 585, Los Angeles 90012
Phone (213) 267-2406
Information Office (see Chief Information Office)
Inspector General, Office of 500 W Temple St, Rm 383, Los Angeles 90012
Phone (213) 974-6100
Internal Services Department 1100 N Eastern Ave, Los Angeles 90063
Phone (213) 267-2101
Library (see Public Library)
Medical Examiner-Coroner 1104 N Mission Rd, Los Angeles 90033
Phone (213) 343-0522
Mental Health 550 S Vermont Ave, Los Angeles 90020
Phone (800) 854-7771; (213) 738-3700
Military and Veterans Affairs, Department of 1816 S Figueroa St, Los Angeles 90015
Phone (877) 452-8387; (213) 765-9225
Museum of Art 5905 Wilshire Blvd, Los Angeles 90036
Phone (213) 857-6001
Natural History Museum 900 Exposition Blvd, Los Angeles 90007
Phone (213) 763-3301
Parks and Recreation, Department of 1000 S Fremont Ave, Bldg A-9 West, 3rd Flr, Alhambra 91803
Phone (626) 588-5382
Probation Department 9150 E Imperial Hwy, Rm N-31, Downey 90242
Phone (866) 931-2222 (within LA County); (562) 940-2501
Public Defender 210 W Temple St, Rm 19-513, Los Angeles 90012
Phone (213) 974-2811
Public Health, Department of 313 N Figueroa St, Rm 806, Los Angeles 90012
Phone (213) 240-8117
Public Library 7400 E Imperial Hwy, Downey 90242
Phone (562) 940-8400
Public Social Services, Department of 12860 Crossroads Pkwy South, Industry 91746
Phone (866) 613-3777; (562) 908-8400; TDD (800) 660-4026
Public Works, Department of 900 S Fremont Ave, Alhambra 91803
Phone (626) 458-4002
Regional Planning, Department of 320 W Temple St, Los Angeles 90012
Phone (213) 974-6401; TDD (213) 617-2292
Registrar-Recorder/County Clerk 12400 Imperial Hwy, Norwalk 90650
Phone (562) 462-2716; Registrar of Voters (800) 815-2666; Recorder/County Clerk (800) 201-8999
Sheriff's Department Hall of Justice, 211 W Temple St, Los Angeles 90012
Phone (213) 229-1850
Social Services (see Public Social Services)
Treasurer and Tax Collector 500 W Temple St, Rm 437, Los Angeles 90012
Phone (213) 974-2101
Youth Developement Address [Pending]
Phone [Pending]

Source: County of Los Angeles