Health Assessment
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Office of Health Assessment & Epidemiology


Contact Information

    Los Angeles County
    Department of Public Health,
    Office of Health Assessment &
    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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Los Angeles County Health Survey

Image showing diversity of LA County residents

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. 



         2022-2023 Los Angeles County Health Survey data collection has been completed!

The survey is conducted by the LA County Department of Public Health in collaboration with RTI International.


Frequently Asked Questions






2018 LA County Health Survey:

- 2018 LACHS Background Summary
pdf icon1 Methodology 2018 (New)
- Topics & Data Tables 2018
- 2018 Questionnaires:
pdf icon3 Adult & Child 2018



2015 LA County Health Survey:
- 2015 LACHS Background Summary
 pdf icon1 Methodology 2015
- Topics & Data Tables 2015
- 2015 Query System - LA HealthDataNow!
- 2015 Questionnaires:
pdf icon3  Adult & Child 2015


Modern Family Reading to Child


 Diabled Dad Playing With Son




2011 LA County Health Survey:




2007 LA County Health Survey:
- 2007 LACHS Background Summary
- pdf icon9 Methodology 2007
- Topics & Data Tables 2007
- 2007 Query System - LA HealthDataNow!
- 2007 Questionnaires:
  pdf icon10 Adult 2007 pdf icon11 Child 2007 pdf icon12 Sub-Sample 2007


           Image of Latina on a scale


Mother and Child Bonding 




2005 LA County Health Survey:

- 2005 LACHS Background Summary
- pdf icon13 Methodology 2005
  - Topics & Data Tables 2005
-2005 Query System - LA HealthDataNow!
- 2005 Questionnaires:
pdf icon14 Adult2005 pdf icon15 Child2005 pdf icon16 Sub-Sample2005




2002 LA County Health Survey:




Patient getting Hypertension Screening


Image encouraging a man not to smoke




1999 LA County Health Survey:





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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