Counties in Colorado, United States

County Name	Population	Water Area Percentage	Land Area Percentage
Adams County, CO	363,857	0.48%	99.52%
Alamosa County, CO	14,966	0.11%	99.89%
Arapahoe County, CO	487,967	0.28%	99.72%
Archuleta County, CO	9,898	0.39%	99.61%
Baca County, CO	4,517	0.05%	99.95%
Bent County, CO	5,998	1.77%	98.23%
Boulder County, CO	291,288	1.19%	98.81%
Broomfield, CO	58,298	1.09%	98.55%
Chaffee County, CO	16,242	0.15%	99.85%
Cheyenne County, CO	2,231	0%	100%
Clear Creek County, CO	9,322	0.25%	99.75%
Conejos County, CO	8,400	0.28%	99.72%
Costilla County, CO	3,663	0.27%	99.73%
Crowley County, CO	5,518	1.42%	98.58%
Custer County, CO	3,503	0.14%	99.86%
Delta County, CO	27,834	0.56%	99.44%
Denver County, CO	554,636	1.03%	98.97%
Dolores County, CO	1,844	0.11%	99.9%
Douglas County, CO	175,766	0.31%	99.69%
Eagle County, CO	41,659	0.23%	99.77%
El Paso County, CO	516,929	0.15%	99.85%
Elbert County, CO	19,872	0.01%	99.99%
Fremont County, CO	46,145	0.07%	99.93%
Garfield County, CO	43,791	0.29%	99.71%
Gilpin County, CO	4,757	0.26%	99.75%
Grand County, CO	12,442	1.23%	98.77%
Gunnison County, CO	13,956	0.64%	99.36%
Hinsdale County, CO	790	0.49%	99.51%
Huerfano County, CO	7,862	0.15%	99.85%
Jackson County, CO	1,577	0.48%	99.52%
Jefferson County, CO	527,056	0.77%	99.23%
Kiowa County, CO	1,622	0.83%	99.17%
Kit Carson County, CO	8,011	0.03%	99.97%
La Plata County, CO	43,941	0.46%	99.54%
Lake County, CO	7,812	1.83%	98.17%
Larimer County, CO	251,494	1.24%	98.76%
Las Animas County, CO	15,207	0.06%	99.94%
Lincoln County, CO	6,087	0.01%	99.99%
Logan County, CO	20,504	0.34%	99.66%
Mesa County, CO	116,255	0.4%	99.6%
Mineral County, CO	831	0.23%	99.77%
Moffat County, CO	13,184	0.18%	99.82%
Montezuma County, CO	23,830	0.16%	99.84%
Montrose County, CO	33,432	0.09%	99.91%
Morgan County, CO	27,171	0.66%	99.34%
Otero County, CO	20,311	0.54%	99.46%
Ouray County, CO	3,742	0.32%	99.68%
Park County, CO	14,523	0.45%	99.55%
Phillips County, CO	4,480	0.02%	99.98%
Pitkin County, CO	14,872	0.29%	99.71%
Prowers County, CO	14,483	0.24%	99.76%
Pueblo County, CO	141,472	0.38%	99.62%
Rio Blanco County, CO	5,986	0.06%	99.94%
Rio Grande County, CO	12,413	0.06%	99.94%
Routt County, CO	19,690	0.27%	99.73%
Saguache County, CO	5,917	0.06%	99.94%
San Juan County, CO	558	0.22%	99.78%
San Miguel County, CO	6,594	0.15%	99.85%
Sedgwick County, CO	2,747	0.25%	99.75%
Summit County, CO	23,548	1.79%	98.21%
Teller County, CO	20,555	0.34%	99.66%
Washington County, CO	4,926	0.12%	99.88%
Weld County, CO	180,936	0.72%	99.28%
Yuma County, CO	9,841	0.14%	99.86%

State Information	Safety and Environment
Official Site of Colorado State Population: 5,355,866 Colorado Counties	Natural Resource Office