The Oklahoma City Health Department was established in 1910 to deal with the basic sanitation and disease control problems of Oklahoma City’s rapidly growing new community. In 1939, Oklahoma County established its own badly needed health department. The two departments merged in 1955, and OCCHD is currently located at 921 NE 23rd Street, just to the east of the State Capitol building.

The Oklahoma City-County Health Department has continued to serve the Oklahoma City metro area and county with programs and services offered to every citizen of Oklahoma County. Since its initial inception, OCCHD has expanded its locations around Oklahoma County to better serve the community.