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Assisted Living in San Mateo County, CA

County directory of licensed assisted living providers, cities in San Mateo County, and real Area Agency on Aging / state Medicaid contacts. We never invent county Medicaid offices.

Licensed assisted living providers: 50

A note on counting: we show 50 licensed assisted living communities listed for San Mateo County proper. Other sites show bigger numbers when they count a wide radius. Nearby options are linked below, labeled by city.

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Cities in San Mateo County

Local aging & Medicaid contacts

Area Agency on Aging

San Mateo County Area Agency on Aging · (844) 868-0938

Official AAA website

Source: State aging agency.GOV

Aging & Disability Resource Center

California Aging & Disability Resource Connection · 1-800-510-2020

Official ADRC page

Source: Aging & disability resource center.GOV

California Medicaid HCBS / LTSS programs

State-level Medicaid waiver contacts (not invented county Medicaid offices). Official agency pages only.

  • Assisted Living Waiver. Medi-Cal HCBS waiver administered by DHCS. Requires living in a Residential Care Facility for the Elderly (RCFE), an Adult Residential Care Facility (ARF), or subsidized public housing -- not a benefit for care in one's own home. Confirmed on the DHCS ALW page (2026-07-26).
  • Medi-Cal long-term services and supports (LTSS). State Medicaid / LTSS entry point (DHCS Medi-Cal). Use for HCBS pathway discovery alongside named waivers.
Source: State Medicaid program.GOV

Questions families ask

How many assisted living communities are listed in San Mateo County, CA?

We currently list 50 licensed assisted living communities in San Mateo County, CA.

Which cities in San Mateo County have assisted living listings?

We track 17 cities in San Mateo County with assisted living communities. See the city list on this page.

Who is the Area Agency on Aging for San Mateo County?

San Mateo County Area Agency on Aging is the Area Agency on Aging covering San Mateo County. Contact details on this page come from official aging-network sources.

How do families in San Mateo County learn about Medicaid long-term care options?

California publishes named Medicaid HCBS / LTSS waiver programs. We link official state pages on this county page and do not invent county Medicaid office contacts.

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Assisted Living in San Mateo County, CA · ElderCareCosts