Head Start draws on the support of local communities. Head Start programs are operated by over 1,400 community-based organizations. Grantees include school districts, universities, community health centers, tribal governments, Alaska Native Corporation city and county governments, Community Action Agencies, and other profit and nonprofit organizations. The U.S. government provides 80% of Head Start program funding through the Department of Health and Human Services. The remaining 20% must come from community sources. This requirement helps to ensure that each Head Start program reflects the strengths, needs, concerns, and cultures of the local community.