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Affordable Senior Apartments in San Mateo County, CA

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

Licensed affordable senior apartments providers: 23

A note on counting: we show 23 licensed senior apartment 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 housing costs

HUD’s fair market rent for San Mateo County sets what a housing voucher covers here. It is a useful floor for what local housing costs, not a price for care.

One-bedroom fair market rent (FY2026)
$2,977per month
Two-bedroom fair market rent (FY2026)
$3,604per month
Income limit, one person (FY2026)
$73,550per year
Income limit, four people (FY2026)
$105,050per year

The income limits are HUD’s very low income threshold, about 50 percent of area median income. They are the line most Section 8 and income-restricted senior housing programs use. HUD publishes a one-person and a four-person figure, so households of two or three fall between the two numbers above.

Source: HUD Fair Market Rents (opens in a new tab) · Updated FY2026.GOVSource: HUD Income Limits (opens in a new tab) · Updated FY2026.GOV

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.

Source: State Medicaid program.GOV

Questions families ask

How many senior apartment communities are listed in San Mateo County, CA?

We currently list 23 licensed senior apartment communities in San Mateo County, CA.

Which cities in San Mateo County have affordable senior apartments listings?

We track 12 cities in San Mateo County with senior apartment 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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Affordable Senior Apartments in San Mateo County, CA · ElderCareCosts