OpenColorado in collaboration with the Colorado Information Marketplace provides a data sharing platform that allows Colorado government organizations to make public data available and accessible to all Colorado constituents. OpenColorado works closely with counties and municipalities whereas the Colorado Information Marketplace focuses on state data.

Boundaries data from the State Demography Office for Colorado Municipalities provided by the Department of Local Affairs (DOLA).

Annexation data for Colorado Municipalities, from 2010 to the present from the Department of Local Affairs (DOLA).

Locations and areas of Colorado cities, towns, municipal perimeters, and FIPS codes from the Colorado Department of Transportation (CDOT).