Colorado’s population has grown from 4.3 million in 2000 to 5.6 million today, or a 30 percent increase. More than half that growth has been in the six-county metro area, which jumped 684,000 residents from 2.4 million to 3.1 million.
- Arapahoe County’s 32 percent growth moves it from the 3rd largest county to second, behind Denver (704,000) and third statewide behind El Paso (699,000).
- Boulder and Jefferson counties are the metro laggards with 11% and 9% growth, respectively. Boulder dropped to the smallest population in the six-county metro area behind Douglas. Jefferson added only 47,000 new residents.
- Denver’s addition of 150,000 new residents has been extraordinary, especially in the last 7 years. It has changed the politics of the metro area (more Democratic) and made growth a political issue in Denver (traffic, density, gentrification, stress on city services and facilities).
- Adams and Douglas counties, the north and south counties on the metro Front Range, have the fastest growth rates and still have room for considerable growth.