Local supply and market context for residential assisted living in Foster City.
Updated July 2026
Foster City, CA has 7 licensed assisted living homes (252 beds, averaging 36.0 per home). It sits in San Mateo County, a moderate RAL market scoring 6.4/10, with 57,623 seniors 75+ growing 8.7%.
Licensed homes
7
Foster City
Licensed beds
252
total
Avg home size
36.0 beds
per home
County opportunity
6.4/10
Moderate
The Foster City assisted living market
Foster City has 7 licensed assisted living homes totaling 252 beds — an average of 36.0 beds per home, skewing toward larger communities. As part of San Mateo County, it draws on a 75+ population of 57,623 growing 8.7%, with a senior median income of $103,766. See the full San Mateo County market or all California top markets.
Frequently asked questions
How many assisted living homes are in Foster City, CA?
Foster City has 7 licensed assisted living homes with about 252 total beds.
Is Foster City a good place to open an assisted living home?
Foster City is in San Mateo County, which scores 6.4/10 (Moderate) on RAL Market Scout; its 75+ population is growing 8.7%. Current local supply is 7 homes.
What county is Foster City in?
Foster City is in San Mateo County, California.
Evaluate a Foster City site
RAL Market Scout builds a full demand-and-supply report for any specific address in Foster City.
Sources: Home and bed counts from the California licensing roster (RAL Market Scout pipeline). County demand, growth, and income from U.S. Census ACS. Snapshot: 2026-07. Informational only — not legal, financial, or investment advice.