Transitional kindergarten · Foster City

4 of Foster City’s public and charter campuses ran a TK class in 2025–26, enrolling 155 four-year-olds.

Source: CDE 2025–26 October enrollment count, 4 campuses in Foster City.

Audubon Elementary: 58 in TKBeach Park Elementary: 39 in TKFoster City Elementary: 38 in TKBrewer Island Elementary: 20 in TK
  1. Audubon Elementary58 in TK
  2. Beach Park Elementary39 in TK
  3. Foster City Elementary38 in TK
  4. Brewer Island Elementary20 in TK
Each numbered dot is a campus with a TK class, where it stands in the city. A larger dot has more children in TK. North is up.

Eligibility

Who can start TK in 2027–28?

Children who turn 4 by September 1, 2027 can start, and it’s free.

Age

Is my child old enough?

A birthday from September 2, 2022 through September 1, 2023 (our arithmetic from the rule). A child who turns 5 by September 1 starts kindergarten instead.

Rule: California Education Code § 48000 (opens in a new tab)

Cost

Does TK cost anything?

No. TK is a free public school year before kindergarten, and enrolling is optional. Hours, before- and after-school care and open seats vary by campus, so ask the school.

Starting ages and cutoff dates →

Where to enroll

Through San Mateo-Foster City

Campuses

Which Foster City campuses have a TK class?

4 campuses in Foster City had a TK class in 2025–26.

Campuses by TK headcount

  • 58in TK

    Audubon Elementary

    Grades TK–5 · San Mateo-Foster City

    Scope Score 85Strong · 85th percentile

  • 39in TK

    Beach Park Elementary

    Grades TK–5 · San Mateo-Foster City

    Scope Score 88Strong · 91st percentile

  • 38in TK

    Foster City Elementary

    Grades TK–5 · San Mateo-Foster City

    Scope Score 88Strong · 90th percentile

  • 20in TK

    Brewer Island Elementary

    Grades TK–5 · San Mateo-Foster City

    Scope Score 86Strong · 87th percentile

Each campus’s TK headcount is from the state’s 2025–26 October enrollment count. Each Scope Score and percentile compares a school’s elementary grades with California elementary schools. A campus without elementary results shows none.

Each headcount counts the students enrolled on one October day, so it shows who enrolled, not seats open now. A campus missing here may still run TK; confirm with the school or district.

Before TK

Too young for TK? Where can my child go?

Foster City has 35 licensed child care programs.

13

child care centers

22

family child care homes

A child born after September 1, 2023 isn’t old enough for TK in 2027–28. Until they are, look at Foster City’s centers and family child care homes, and ask each one about ages and openings.

Preschools in Foster CityPre-K vs TK vs preschool in California: a 2026 parent’s guide

Licensed programs from the California Community Care Licensing Division: child care centers as of August 13, 2026, family child care homes as of May 25, 2025. A license is not a quality rating or a current opening.