Daycare Cost in San Mateo 2026: What Parents Actually Pay
Based on 76 state-licensed commercial child care centers (3,915 authorized slots) across Beresford Park, Baywood, Hillsdale, Aragon, Shoreview, and Foster City border, plus California SB 1162 educator wage filings in San Mateo County, here is what San Mateo parents actually pay for infant, toddler, and preschool care in 2026.
Per month • 0–24 months • 1:4 state mandatory ratio
Per month • 2–5 years • 1:12 state mandatory ratio
San Mateo County benchmark • CA SB 1162 audited data
1. San Mateo Child Care Pricing Breakdown by Age Cohort (2026)
Monthly daycare tuition in San Mateo is governed primarily by California Title 22 staffing ratios and classroom square-footage requirements:
| Age Cohort | Title 22 Staff Ratio | Monthly Tuition Range (San Mateo) |
|---|---|---|
| Infants (0–18 mos) | 1 teacher per 4 infants | $2,500 – $3,400 / mo |
| Toddlers (18–30 mos) | 1 teacher per 6 toddlers | $2,200 – $2,900 / mo |
| Preschool (2.5–5 yrs) | 1 teacher per 12 children | $1,900 – $2,550 / mo |
| TK / Pre-K Readiness | 1 teacher per 12 children | $1,700 – $2,300 / mo |
2. Top Audited Daycare Centers in San Mateo (76 Licensed Centers)
Compare CDSS inspection records, licensed capacities, and Staff Stability Scores before requesting a tuition rate sheet on tour.
Compare San Mateo Tuition Against Safety & Inspection Records
Families earning below 85% of the California State Median Income (SMI) can check eligibility for $0 or capped 1% family-fee child care through Child Care Coordinating Council (4Cs) of San Mateo County. Always verify a center's 36-month CDSS inspection record alongside its tuition sheet.
Frequently Asked Questions (San Mateo Daycare Costs)
What is the average monthly cost of daycare in San Mateo, CA in 2026?
Full-time infant child care (0–24 months) in San Mateo averages $2,500 – $3,400 per month. Full-time toddler care (18–30 months) ranges from $2,200 – $2,900 per month, and preschool care (ages 2–5) averages $1,900 – $2,550 per month across 76 licensed centers.
How many licensed daycare centers operate in San Mateo?
According to California CDSS licensing records (updated October 20, 2026), San Mateo has 76 commercial child care centers providing 3,915 licensed child care slots across Beresford Park, Baywood, Hillsdale, Aragon, Shoreview, and Foster City border.
Are child care subsidies available for families in San Mateo?
Yes. Families earning below 85% of the California State Median Income (SMI) can apply for tuition assistance and sliding-scale vouchers through Child Care Coordinating Council (4Cs) of San Mateo County.
Get citation alerts when a San Mateo daycare receives a new CDSS citation
California State Social Services (CDSS) conducts unannounced annual and complaint inspections. We continuously scan the state licensing docket and email you immediately if a new Type A hazard or staffing ratio citation is posted.