The State of Colorado wants to ensure everyone is able to access the information they need. If you feel this app is not accessible to you, please email the State Demography Office and we will be happy to assist you.
The Colorado Municipal Boundaries Project is a collaborative effort between private, local, county, and state sources. Please contact Todd Bleess for questions.
Data: The Municipalities dataset was created by combining a Base Boundary dataset with an Annexation dataset.
The Base Boundaries are a compilation of voluntary contributions and publicly available downloads from local and regional authorities.
The Annexation dataset was created by transcribing areas from annexation maps; either by freehand drawing or by digitally copying when available.
Currency of data depends upon having accurate base data as well as timely annexation updates (sent from each County Clerk to DOLA per Colorado statutory requirements).The creator (DOLA) and contributors to this project do not guarantee the accuracy of any information presented, are not liable for any errors or omissions and are not responsible for determining fitness for use, either in this map or in its associated data. This data should not be considered an authoritative source of information.
Annexation Filter