LA County Public Health - Health Assessment Unit

Community Health Assessment
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Office of Health Assessment & Epidemiology


Contact Information

    Los Angeles County
    Department of Public Health,
    Office of Health Assessment &
    Community Health Assessment Unit,
    313 N. Figueroa Street, Room 127
    Los Angeles, CA 90012

    Phone:(213) 288-7785
    Fax:(213) 250-2594
Click Here for Driving Directions

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The Community Health Assessment Unit makes up part of the Office of Health Assessment and Epidemiology (OHAE), along with the Epidemiology Unit, the Data Collection and Analysis Unit, the Policy Analysis Unit and the Institutional Review Board, in the Department of Public Health. OHAE is overseen by the Chief Science Officer.


The Community Health Assessment Unit oversees the development of the Los Angeles County Health Survey (LACHS), a population-based telephone survey which collects data on health conditions, health behaviors, and health care access and utilization of services from a representative sample of Los Angeles County residents. The unit also provides data support, along with the other units of OHAE, for Area Health Officers and their respective staffs for the purpose of improving community health.



LA County Health Survey

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The Los Angeles County Health Survey is a population based telephone survey that provides information concerning the health of Los Angeles County residents. The data are used for assessing health-related needs of the population, for program planning and policy development, and for program evaluation. The relatively large sample size allows users to obtain health indicator data for large demographic subgroups and across geographic regions of the County, including Service Planning Areas and Health Districts.

 2023 Los Angeles County Health Survey Data (available now)


Key Indicators of Health

Health indicators represent one available tool for monitoring the overall health of the population, and for communicating with the public about key opportunities for health improvement. A broad array of health and health-related indicators are presented including: health conditions and health behaviors, as well as factors in the social and physical environments that strongly influence health and contribute to disparities in health outcomes. The data in these reports were designed to be shared with concerned community groups, such as health care providers, schools, neighborhoods, and non-profit and business associations, to help us work together toward achieving better health for all.

  Key Indicator of Health 2016 image


  Health Indicators for Women in Los Angeles County


Query System

LA Health Data Now

The 2015, 2011, 2007 & 2005 LACHS datasets are available for analysis--Disconnected!

Public Health has made reasonable efforts to provide accurate translation. However, no computerized translation is perfect and is not intended to replace traditional translation methods. If questions arise concerning the accuracy of the information, please refer to the English edition of the website, which is the official version.
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