Rainbow Community Center Share: Non-Profit Organizations Rainbow Community Center Visit Website 2118 Willow Pass Road Suite 500 Concord, CA 94520 7072087931 About Map About The Rainbow Community Center of Contra Costa County builds community among LBGTQ persons and their allies through social opportunities, health and wellness services, and awareness programs. What's Nearby? Distance: 5 10 15 20 25 50 mi.