Island United is at the heart of Foster City.

Worship with us

Join the Sunday Celebration Livestream

Every Sunday at 10 am Pacific

Join us Live on Zoom

No Sunday Celebration Service on Sunday, December 28, 2025

Our staff is taking a much-deserved break this Sunday and Island United’s sanctuary will be closed. Please join our congregation for a field trip to the Congregational Church of San Mateo (225 Tilton Ave, San Mateo) at 10:30 am for their in-person service or online.

Visit CCSM
Give to Island United

Watch our Livestreams

See More on our Youtube Channel

WHO WE ARE

IUC at a Glance​

Everything you need to know before you walk through the doors of our sanctuary—in-person or virtually.

Vibrant illustration celebrating diversity, depicting people of all races, ages, and gender expressions. Include individuals using wheelchairs, people with hearing aids, those wearing glasses, and individuals accompanied by seeing-eye dogs, presented in a joyful and inclusive scene.

We are an Open & Affirming Congregation

We celebrate our differences. All of them: differences of color, gender, age, ethnicity, sexual orientation and expression, socio-economic background or any other social delimiter, seen or unseen.

Vibrant digital illustration in a painterly style. A large, glowing golden question mark, intricately detailed with subtle iridescent highlights, floats serenely above soft, ethereal, cumulus clouds. The background depicts a celestial, heavenly realm bathed in warm, golden light, with subtle hints of pastel colors blending into the sky. The composition is a medium shot, focusing on the question mark and the heavenly expanse.

We Have Questions, Not Answers​

We believe faith is more about questions than answers. Bring your doubts – this is the tradition of the United Church of Christ. 

A vibrant illustration depicting a communion table laden with bread and juice. The table setting, made of earthen materials, features off-white plates and chalices, bathed in warm, inviting light, creating a serene and sacred atmosphere.

Communion Every Sunday​

We have an open table.  All are invited to share in a simple feast of bread and grape juice (including children) regardless of beliefs, faith tradition, or none.  You have only to desire to share with us in love and community.

POSTED FRESH EACH THURSDAY

Pastor’s Weekly Message

Read Past Messages

WEEKLY EVENTS AT ISLAND UNITED

Get together with us

The Sunday Celebration and Worship Service isn’t the only way to connect with us every week. Check out our book group, crafting social group, and mid-week check-in & prayer group. All free, all on Zoom.

Chat n’ Chew Book Group

Tuesdays at 1:30 pm on Zoom.

Knitting & Crafts Social Group

Wednesdays at 1 pm on Zoom.

Midweek Check-in & Prayer

Thursdays at 6 pm on Zoom.

COMMUNITY AND SOCIAL JUSTICE

Become A Part Of Something Great​

Community and social justice activism are just a few reasons we say that Island United is at the heart of Foster City. Come experience us outside the sanctuary at any of these events.

Explore our Events

    • 28

    DEC 2025

    Church Field Trip to CCSM

    • Sunday, December 28, 2025
    • 10:30 am – 11:30 am
    • Congregational Church of San Mateo

    Worship with us every sunday at 10 am

    1130 Balclutha Drive, Foster City, CA 94404

    ENTRANCE AND FREE PARKING LOT
    ON COMET DRIVE

    (650) 349-3544​