- County Data Page - Government contact information, elected officials, some with email addresses, list of cities, links to census data. From the National Association of Counties.
- County of Los Angeles Registrar-Recorder - A wealth of official information about LA County. Search for Businesses who filed DBA (Fictitious Name) statements.
- Department of Health Services - This county department operates numerous Health Centers and Hospitals, regulates Restaurants, and controls potentially harmful chemical, physical, and biological agents in the environment.
- Department of Public Works, Environmental Programs Division - Programs to minimize water pollution, reduce waste at landfills, promote recycling, and keep neighborhoods clean and healthy.
- Homeless Services Authority - an independent unit of local government, formed to address the problems of homelessness on a regional basis.
- L.A. County Assessor - Property tax assessment information and data on individual parcels with maps and sales searches.
- Los Angeles County Child Support Services Department - CSSD offers information and resources to assist residents in seeking and receiving child support payments.
- Los Angeles County Code - Provides access to the general and permanent ordinances and building codes in a searchable, easy to read format.
- Los Angeles County Community Development Commission - CDC features services to improve the quality of life in low- and moderate-income neighborhoods.
- Los Angeles County Department of Public Works - Responsible for building code enforcement, roads, sewers, and the environment in unincorporated county areas.
- Los Angeles County Property Tax Portal - Includes instructions on how to read property tax bills, the assessment process, appeals, and agency contacts. [English/Spanish]
- Los Angeles Department of Public Social Services - Information on financial assistance, welfare, employment, health care, child care and special programs and services offered to the community.
- Main San Gabriel Basin Watermaster - Public board which administers water rights within the Main San Gabriel Basin of eastern LA county.
- MapStats: Los Angeles County - County statistics collected by the Federal Interagency Council on Statistical Policy, including agriculture, census, business, crime, energy and environment, and general profile.
- Profile for Los Angeles County - Includes government officials and county offices, list of cities in the county, population estimates, lookup for Federal campaign contributions, links to other information.
- San Gabriel Valley Council of Governments - Agendas for public meetings, list of member cities and information on valley affairs. Board profiles and contacts provided.
- YBLost - Los Angeles County - Directory of government agencies and departments.
