The Towaco branch of the United States Postal Service is one of three post offices serving the Township. The Towaco office is located on 202, not far from the Towaco train station and the Towaco Volunteer Fire Department. Those living on the west side of the town would be best served at this office, as residents do not have to bother with traffic from Changebridge Avenue or Highway 287.
- Fax: 650-357-6537
- Hours: Lobby: Mon - Fri: 7:30am - 5pm, Sat: 8am - 3pm Window: Mon - Fri: 7:45am - 4:45pm, Sat: 8am - 12pm
- Handicap Accessible: Yes
- Parking: Free lot
- Public restrooms: No