Washington is a cdp located in Adams County, in the state of Colorado (CO), United States. Nestled in the Mountain division of the West region, it covers an area of 5.3 square miles (14.0 km²) and sits at an elevation of 5190 ft. With a population of approximately 549 residents, Washington offers a peaceful, rural atmosphere.
The town's population is composed of about 52.46% males and 47.54% females, and it has a population density of 103.39 people per square mile (39.92/km²). Washington lies at a latitude of 39.81 and a longitude of -104.98, operating in the UTC-7.
Locals reflect a blend of American ancestry, with roots primarily in United States (0%), followed by English (3.1%), German (20.4%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 80216.