Public toilets and restrooms in Foster City, CA

Foster City has 16 restrooms on the map: 11 open to the public and 5 in businesses for customers. 1 is confirmed free, 1 is open 24 hours, and 2 are wheelchair accessible.

Highest-rated first. Updated November 5, 2026. All of California

Public restrooms

• Boothbay Park restroom

  Park restroom · No ratings yet

  Foster City, CA

• Catamaran Park restroom

  Park restroom · No ratings yet

  Foster City, CA

  Open to the public

• Edgewater Park restroom

  Park restroom · No ratings yet

  Foster City, CA

• Erckenbrack Park restroom

  Park restroom · No ratings yet

  Foster City, CA

• Farragut Park restroom

  Park restroom · No ratings yet

  Foster City, CA

  All-gender

• Gull Park restroom

  Park restroom · No ratings yet

  Foster City, CA

• Leo J Ryan Memorial Park restroom

  Park restroom · No ratings yet

  Foster City, CA

  All-gender

• Port Royal Park restroom

  Park restroom · No ratings yet

  Foster City, CA

  All-gender

• Public restroom

  Public toilet · No ratings yet

  Foster City, CA

  dawn-dusk

• Public restroom

  Public toilet · No ratings yet

  Foster City, CA

  Open to the public · Free · Wheelchair accessible

• Shorebird Park restroom

  Park restroom · No ratings yet

  Foster City, CA

  Open to the public · All-gender

Customers-only restrooms

Stores, cafés, and restaurants that usually let customers use the restroom. Buy something or ask staff first.

• Costco

  Business (ask staff) · No ratings yet

  1001 Metro Center Boulevard, Foster City, CA 94404-2177

  Customers only

  Mo-Fr 09:00-20:30; Sa,Su 09:00-19:00

• McDonald's

  Business (ask staff) · No ratings yet

  1101 Triton Drive, Foster City, CA 94404-1213

  Customers only

  24/7

• Panera Bread

  Business (ask staff) · No ratings yet

  1297 Chess Drive, Foster City, CA 94404

  Customers only

  Mo-Sa 06:00-21:00; Su 07:00-21:00

• Starbucks

  Business (ask staff) · No ratings yet

  1000 Metro Center Boulevard, Foster City, CA 94404

  Customers only

  Mo-Su 04:30-19:00; Fr,Sa 04:30-19:30

• Starbucks

  Business (ask staff) · No ratings yet

  Foster City, CA

  Customers only · Wheelchair accessible

Nearby cities

San Mateo (36) Belmont (18) San Carlos (3) Redwood City (19) Burlingame (9) San Mateo County (123) Menlo Park (9) San Bruno (9)