CUCC began in the Table Mesa neighborhood while the area was being developed in the 1960s. The church originally spun off from the big UCC congregation in downtown Boulder and was envisioned as the local south-Boulder neighborhood progressive UCC church. 

From the beginning, CUCC has been very involved in social action activities such as protesting nuclear development at Rocky Flats, participating yearly in the CROP Hunger Walk, and, most recently, hosting a Guns to Gardens gun surrender event. In addition, the focus of CUCC is supporting one another, living out the value of protecting the earth, and providing a beautiful and meditative setting right next to Bear Creek.