Epidemiology

What We Do

Analyze and disseminate data on life expectancy, and vital statistics in Los Angeles County

Mission Statement

To ensure the availability of high-quality and comprehensive health data on the Los Angeles County population and to facilitate its use for public health assessment, policy development, and program planning and evaluation

What is Epidemiology?

Epidemiology is a core science in public health. It's the study of the distribution and determinants of health conditions in populations.

Organization Overview

The Epidemiology team is part of the Office of Health Assessment and Epidemiology overseen by the Los Angeles County Department of Public Health (Public Health) Chief Science Officer. Under the leadership of Dr. Alex Ho, the Epidemiology team consists of a group of researchers specialized in the field of epidemiology.

Key Activities

The Epidemiology team collaborates with Public Health offices and programs as well as community partners to provide services in the following areas: (1) standardize and provide data on life expectancy, vital statistics, and other indicators of community health; (2) conduct special research studies and publish public health reports.

News Releases

Los Angeles County Demographic Profile 2024

The latest population estimates for county residents by demographic characteristic and service Planning Area


Published July 2025 | Download PDF
Access previous demographic profiles