RAL Market ScoutMarketsCaliforniaSan Mateo County
RAL MARKET SCOUT Assisted living in SanMateo County, CA 213 homes · opportunity 6.4/10 (Moderate) ralmarketscout.com
San Mateo County, California · County Market Snapshot

Assisted living in San Mateo County, California

Demand, supply, and opportunity for small assisted living homes in San Mateo County — from the RAL Market Scout dataset.

Updated July 2026
San Mateo County, CA scores 6.4/10 (Moderate) for assisted living opportunity. It has 57,623 residents aged 75+, growing 8.7%, against 213 licensed homes — a moderate small-home market on RAL Market Scout's demand-vs-supply scoring.
Opportunity score
6.4/10
Moderate
Population 75+
57,623
8.7% growth
Licensed homes
213
current supply
Demand rating
5.4/10
Moderate

Why San Mateo County ranks here

San Mateo County scores 6.4/10 (Moderate) because its 57,623 seniors 75+ are growing 8.7% against just 213 licensed homes, with referral capacity of 1.3 per 1,000 seniors from nearby hospitals, hospice, and home-health agencies. A senior median income of $103,766 and median home value of $1,559,600 signal the local private-pay base.

San Mateo County demand & supply detail

Population 75+57,623
75+ growth (10-yr)8.7%
Dementia prevalence (65+)6.0%
Licensed assisted living homes213
Referral facilities nearby (hospital · hospice · SNF · home health · FQHC)77
Referral capacity / 1k seniors1.3
Senior median income$103,766
Median home value$1,559,600
Opportunity score6.4 / 10 (Moderate)

Assisted living by city in San Mateo County

CityHomesBeds
San Mateo601,160
South San Francisco32440
Redwood City30725
San Bruno22133
Daly City15497
Millbrae12448
Burlingame12441
Foster City7252
San Carlos7213

Licensed assisted living homes in San Mateo County

FacilityCityBeds
PENINSULA REGENT (THE)San Mateo435
SEQUOIAS-PORTOLA VALLEY, THEPortola Valley328
ATRIA AT FOSTER SQUAREFoster City216
MAGNOLIA OF MILLBRAEMillbrae180
ATRIA PARK OF SAN MATEOSan Mateo175
CADENCE MILLBRAEMillbrae165
PENINSULA DEL REYDaly City150
TROUSDALE, THEBurlingame140
SAN CARLOS ELMSSan Carlos130
BROOKDALE REDWOOD CITYRedwood City130
OAKMONT OF REDWOOD CITYRedwood City127
SERRA HIGHLANDS SENIOR LIVINGDaly City120
IVY PARK OF BELMONTBelmont117
SILVERADO SENIOR LIVING - BELMONT HILLSBelmont112
AEGIS LIVING SAN FRANCISCOSouth San Francisco100

Frequently asked questions

How many assisted living homes are in San Mateo County?
San Mateo County has 213 licensed assisted living homes, serving 57,623 residents aged 75 and older.
Is San Mateo County a good market for assisted living?
San Mateo County scores 6.4 out of 10 (Moderate) on RAL Market Scout, which weighs 75+ demand and projected senior growth against current bed supply. Its 75+ population is growing 8.7%.
How fast is the senior population growing in San Mateo County?
The 75+ population in San Mateo County is projected to change 8.7% over the coming decade, with dementia prevalence around 6.0% of seniors 65+.

Go deeper on San Mateo County

RAL Market Scout maps demand and supply down to the ZIP and builds a full site report for any specific address in San Mateo County.

Sources: Licensed-home count from the California state roster (RAL Market Scout pipeline). 75+ population, growth, income, and home value from U.S. Census ACS. Dementia prevalence from CMS chronic-condition data. Opportunity score is RAL Market Scout's model. Snapshot: 2026-07. Informational only — not legal, financial, or investment advice.