San Mateo, CA has 59 licensed assisted living communities listed on ElderCareCosts. The median estimated cost is $7,234/mo. That's above the California state median by about 3%. Compare providers below, or request a personalized shortlist to start your search.
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Median monthly price, San Mateo
$7,234/mo
● San Mateo $7,234 ○ National median $6,230
1. Call the county aging agency
Free: (844) 868-0938 (San Mateo County Area Agency on Aging)
2. Shortlist 3 options
3. Tour with the checklist
San Mateo figures as of 2025. Method and sources below.
Median costs for assisted living in San Mateo versus California and the middle state nationally. The 25th and 75th percentile rows are the modeled range explained on the methodology page; in the national column they are percentiles across state medians. Figures are estimates, not quotes.
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A dash means the underlying source can't support that figure for this area. We leave the cell empty rather than estimate around it.
The $7,882 monthly figure assumes 44 hours of care a week. The survey standard. At San Mateo's implied rate of about $41 an hour:
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Medicare generally does not cover long-term custodial care. State-specific Medicaid waiver guides are coming soon.
Nearby: Hillsborough $7,234 · Baywood Park $7,234 · Foster City $7,234 · Belmont $7,234 · Highlands $7,234
Every family starts with a number. Here's what different monthly budgets realistically cover in San Mateo, grounded in local medians on this page.
A note on counting: we show 59 licensed assisted living communities listed for San Mateo proper. Other sites show bigger numbers when they count a wide radius. Nearby options are linked below, labeled by city.
Providers appear with their government data: license status, capacity, inspection history, and a CMS star rating where the service has one. The order is the date we last verified each record, newest first. Nobody pays to appear, and nobody pays to move up. If a listing says "Sponsored," a provider paid for that placement and the label says so.
Looking for a transparent sort by CMS stars, inspection records, and staffing? That is a separate data ranking, not an editorial pick.
Most listings publish no price. The San Mateo assisted living median is $7,234/mo, an estimate; ask each community for its own number in writing.
Sponsored placements, when they appear, are always labeled. How we make money →
In the last 365 days: 107 newly licensed · 10 closed. Counts come from our ingestion diffs, not a complete state registry dump.
San Mateo has an estimated population of 103,105. About 17,563 residents (17%) are age 65 or older. San Mateo is located in San Mateo County, California. The median household income is $153,504. Our directory currently lists 59 licensed assisted living communities in San Mateo. Estimated median cost in San Mateo is $7,234 per month, compared with $7,000 per month statewide in California.
Source: US Census Bureau (ACS) · Updated Jul 2026.GOVThese services are public and free. We list them before anything we could earn from.
Area Agency on Aging serving this city.
State Long-Term Care Ombudsman program.
State Health Insurance Assistance Program (SHIP).
Aging & Disability Resource Center hub for this state.
San Mateo
VA Medical Center in Menlo Park.
Can help pay for care if your parent qualifies. Rules change. Confirm on the official page.
Free national starting points. Official sites only; we do not scrape these directories.
Free nationwide connection to local aging services.
Local health and human services referrals.
Screen for benefits you may qualify for.
ACL Disability Information and Access Line.
Veterans health care and long-term care programs.
Veterans & surviving spouses: VA Aid & Attendance can help wartime veterans who qualify. Official info only. How Aid & Attendance works →
We currently list 59 licensed assisted living communities in San Mateo, CA.
San Mateo's median assisted living cost is about 3% higher than the California state median.
Tell us needs and budget once. We email you licensed options with the cost data we publish, the same day. Data stays free either way.
Reading up first? Assisted Living across California → · Assisted Living cost breakdown → · Adult Day Care vs Assisted Living →
Touring this week? Print our checklist: what to ask on a tour, what to notice, and the license paperwork to request. Free, no email required. Optional send-to-email when you want it on your phone.
How to cite this page
Cite this: According to ElderCareCosts' 2026 index, assisted living in San Mateo, CA costs $7,234/month (median).
APA: ElderCareCosts Research. (2026). Assisted Living in San Mateo, CA. ElderCareCosts. Retrieved September 18, 2026, from https://www.eldercarecosts.com/assisted-living/california/san-mateo/
Chicago: ElderCareCosts Research. "Assisted Living in San Mateo, CA." ElderCareCosts. Last modified August 10, 2026. Accessed September 18, 2026. https://www.eldercarecosts.com/assisted-living/california/san-mateo/.
These figures may be quoted and reproduced with attribution and a link back to this page. No permission needed. Methodology · Data sources · Who produces this · Corrections