Transit Feasibility Study

With a population of over 70,000 and an expected ultimate LetsTalkTransitpopulation of about 140,000, the Town has decided now is the time to explore the possibility of future transit services for the community. The goal of the current Castle Rock Transit Feasibility Study is to understand realistic options considering the Town’s finite revenue resources.

Throughout the study, community feedback has been collected through an online survey, an open house, meetings with various stakeholders and informational booths at public events. Transit needs and opportunities were identified, and many options were considered for feasibility and how well they addressed such needs.

Final Transit Feasibility Study

View the results of the study.


In 2017, the Town updated the Transportation Master Plan (TMP) to identify transportation improvements throughout the Town. However, it only included a brief look at the possibility of future transit service. 

The Town does not currently offer transit service to the entire public. Existing services consist of a Taxi Voucher Program, which provides service to limited Town residents. The Town also contributes funds to the Castle Rock Senior Center Transportation Program, which also provides limited services in Town.

History of transit in Castle Rock

Prior to 2005, the Town was part of the Regional Transportation District, which operates the Denver area light rail and bus systems, along with other services. Service to Castle Rock was very limited, and residents A diagram showing the brief history of transit service in Castle Rock, as described in the history sdid not believe they were getting adequate service for the amount of taxes paid. In 2005, Castle Rock voters opted out of RTD and the associated sales tax.

From 1994 through 2010, the Town contracted with a small transit provider, the Clean Air Transportation Co., to provide a bus service to much of Castle Rock at little to no cost to riders. The Town discontinued this service during the Great Recession due to budget constraints.

From 2004 to 2012, the Front Range Express bus service served Castle Rock, providing connectivity to Colorado Springs, Monument, Greenwood Village and Denver. This service was discontinued due to budget concerns.