Departments
This directory helps residents, property owners, families, businesses, and visitors identify the appropriate Los Angeles County department for common public service needs. It includes departments responsible for health care, public safety, property assessment, social assistance, legal representation, recreation, elections, tax collection, infrastructure, housing, and administrative services. Each listing provides a brief description of the department’s primary responsibilities and a general phone number for contacting the office.
Finding the Right County Department
County services are divided among specialized departments. Property owners may need the Assessor for valuation questions, the Treasurer & Tax Collector for tax payment matters, or Public Works for infrastructure concerns. Families may contact Children & Family Services, Child Support Services, Public Social Services, or Mental Health depending on the type of assistance required. Legal and justice-related matters are handled by separate offices, including the District Attorney, Public Defender, Alternate Public Defender, Probation, Sheriff, and Justice Care and Opportunities.
Before calling, gather information related to the request, such as a case number, property identification number, account number, address, notice, application, or other official document. Providing accurate details can help staff identify the correct program or determine whether another department handles the issue.
Los Angeles County Department Directory
| Department | Services | Phone Number |
|---|---|---|
| Aging and Disabilities | Programs, referrals, assistance, and supportive services for older adults, people with disabilities, caregivers, and dependent adults. | (800) 510-2020 |
| Agricultural Commissioner/Weights & Measures | Agricultural regulation, pest management, pesticide oversight, commercial weighing and measuring device inspections, and consumer measurement protection. | (626) 575-5451 |
| Alternate Public Defender | Court-appointed criminal defense services for eligible individuals when the Public Defender cannot provide representation because of a conflict. | (213) 974-8150 |
| Animal Care & Control | Animal shelter services, pet adoption, stray animal response, animal licensing, cruelty investigations, and enforcement of animal-related regulations. | (562) 345-0400 |
| Arts and Culture | Arts programs, cultural initiatives, grants, civic art projects, creative workforce development, and support for community cultural organizations. | (213) 202-5858 |
| Assessor | Property assessments, ownership records, parcel information, assessed value notices, exemptions, and questions about real and personal property valuation. | (213) 974-3211 |
| Auditor-Controller | County accounting, financial reporting, payroll administration, audits, disbursements, and oversight of public financial records and controls. | (213) 974-8302 |
| Beaches & Harbors | Management of county beaches, marinas, harbor facilities, recreational programs, boating services, parking areas, and coastal public spaces. | (424) 526-7771 |
| Child Support Services | Establishing parentage, obtaining child support orders, collecting payments, enforcing obligations, and reviewing qualifying support orders. | (866) 901-3212 |
| Children & Family Services | Child safety investigations, foster care, adoption support, family preservation, protective services, and assistance for children and families. | (213) 351-5507 |
| Consumer & Business Affairs | Consumer complaints, business guidance, tenant and landlord information, mediation, wage enforcement, identity theft assistance, and fraud prevention. | (213) 974-9750 |
| District Attorney | Criminal prosecution, victim support, fraud investigations, consumer protection enforcement, and review of cases submitted by law enforcement agencies. | (213) 974-3512 |
| Executive Office, Board of Supervisors | Administrative support for the Board of Supervisors, public meeting records, agendas, official proceedings, and board-related communications. | (213) 974-1401 |
| Fire Department | Fire suppression, emergency medical response, rescue operations, hazardous materials response, fire prevention, inspections, and public safety education. | (323) 881-2401 |
| Health Services | Hospital care, outpatient clinics, emergency treatment, specialty medical services, correctional health care, and health programs for eligible patients. | (844) 804-0055 |
| Homeless Services & Housing | Housing assistance, homelessness response, shelter coordination, outreach programs, housing stability initiatives, and connections to supportive services. | (213) 752-1900 |
| Human Resources | County employment, job examinations, employee benefits, workplace policies, workforce development, classification, and personnel administration. | (213) 974-2406 |
| Justice Care and Opportunities | Justice diversion, reentry support, community-based services, care coordination, and programs intended to reduce involvement in the justice system. | (213) 584-4316 |
| Library | Library cards, books, digital materials, research assistance, public computers, educational programs, literacy support, and community learning services. | (562) 940-8400 |
| Medical Examiner | Death investigations, identification of deceased persons, autopsy findings, case records, cause and manner of death determinations, and related documentation. | (323) 343-0520 |
| Mental Health | Mental health assessment, treatment, crisis response, recovery services, community programs, and support for children, adults, and families. | (800) 854-7771 |
| Military & Veterans Affairs | Benefits assistance, claims support, service record guidance, referrals, and advocacy for veterans, service members, and qualifying family members. | (213) 765-9678 |
| Parks & Recreation | Public parks, sports facilities, recreation classes, youth programs, community centers, trails, swimming facilities, and outdoor activities. | (626) 588-5382 |
| Probation | Adult and juvenile supervision, court-ordered monitoring, rehabilitation programs, community services, investigations, and support for successful reentry. | (562) 940-2501 |
| Public Defender | Legal representation for qualifying individuals accused of crimes who are unable to hire private counsel. | (213) 974-2811 |
| Public Health | Disease prevention, health inspections, environmental health, community health programs, public health records, education, and emergency response. | (213) 240-8117 |
| Public Social Services | Food assistance, cash aid, health coverage support, employment services, eligibility programs, and benefits for qualifying individuals and families. | (866) 613-3777 |
| Public Works | Roads, bridges, flood control, water systems, waste management, building services, engineering projects, and maintenance of public infrastructure. | (626) 458-4002 |
| Regional Planning | Land use planning, zoning information, development review, community plans, environmental review, and planning services for unincorporated areas. | (213) 974-6401 |
| Registrar-Recorder/County Clerk | Elections, voter registration, birth records, death records, marriage records, marriage licenses, real estate document recording, and business filings. | (800) 201-8999 |
| Sheriff | Law enforcement, patrol services, county jail operations, inmate information, court security, investigations, and public safety services. | (213) 229-1700 |
| Treasurer & Tax Collector | Property tax billing and collection, payment processing, delinquent tax accounts, public fund management, and tax-defaulted property administration. | (213) 974-2111 |