Table The table below presents the following information:
The rank of the county within the state by population as of July 1, 2018, as estimated by the U.S. Census Bureau .[1] The official name of the county.[2] The county population as of July 1, 2018, as estimated by the U.S. Census Bureau.[1] The county population as a percentage of the Colorado state population as of July 1, 2018, as estimated by the U.S. Census Bureau.[1] The rank of the municipality within the county by population within the county as of July 1, 2018, as estimated by the U.S. Census Bureau.[1] The official name of the municipality.[3] bold .[4] [1] The municipal population within the county as of July 1, 2018, as estimated by the U.S. Census Bureau.[1] The municipal population within the county as a percentage of the county population as of July 1, 2018, as estimated by the U.S. Census Bureau.[1] A map showing the location of the county within the State of Colorado.[5]
Colorado Municipalities by County Rank County Population % State Rank Municipality Population % County Map 1 City and County of Denver 716,492 12.58% 1 City and County of Denver 716,492 100% 2 El Paso County 713,856 12.53% 1 City of Colorado Springs 472,688 66.22% 2 City of Fountain 30,454 4.27% 3 Town of Monument 8,010 1.12% 4 City of Manitou Springs 5,346 0.75% 5 Town of Palmer Lake 2,772 0.39% 6 Town of Calhan 834 0.12% 7 Town of Green Mountain Falls (95.47%)674 0.09% 8 Town of Ramah 129 0.02% U unincorporated area 192,949 27.03% 3 Arapahoe County 651,215 11.43% 1 City of Aurora (86.84%)324,897 49.89% 2 City of Centennial 110,831 17.02% 3 City of Littleton 45,298 6.96% 4 City of Englewood 34,690 5.33% 5 City of Greenwood Village 15,801 2.43% 6 City of Cherry Hills Village 6,650 1.02% 7 City of Sheridan 6,164 0.95% 8 City of Glendale 5,170 0.79% 9 Town of Columbine Valley 1,488 0.23% 10 Town of Foxfield 792 0.12% 11 Town of Deer Trail 736 0.11% 12 Town of Bow Mar (70.82%)670 0.10% 13 Town of Bennett (15.88%)399 0.06% U unincorporated area 97,629 14.99% 4 Jefferson County 580,233 10.19% 1 City of Lakewood 156,798 27.02% 2 City of Arvada (97.32%)117,268 20.21% 3 City of Westminster (38.85%)44,085 7.60% 4 City of Wheat Ridge 31,400 5.41% 5 City of Golden 21,254 3.66% 6 City of Edgewater 5,342 0.92% 7 City of Littleton (5.58%)2,678 0.46% 8 Town of Mountain View 537 0.09% 9 Town of Morrison 424 0.07% 10 Town of Bow Mar (29.18%)276 0.05% 11 Town of Lakeside 8 0.00% 12 Town of Superior (0%)0 0% U unincorporated area 200,163 34.50% 5 Adams County 511,868 8.99% 1 City of Thornton (100%)139,436 27.24% 2 City of Westminster (61.15%)69,394 13.56% 3 City of Commerce City 58,449 11.42% 4 City of Aurora (12.75%)47,702 9.32% 5 City of Brighton 40,348 7.88% 6 City of Northglenn (99.95%)38,990 7.62% 7 City of Federal Heights 12,845 2.51% 8 City of Arvada (2.68%)3,224 0.63% 9 Town of Bennett (84.12%)2,113 0.41% 10 Town of Lochbuie (0.03%)2 0.00% U unincorporated area 99,365 19.41% 6 Larimer County 350,518 6.15% 1 City of Fort Collins 167,830 47.88% 2 City of Loveland 77,446 22.09% 3 Town of Wellington 9,994 2.85% 4 Town of Berthoud (97.38%)7,738 2.21% 5 Town of Windsor (25.13%)7,279 2.08% 6 Town of Estes Park 6,352 1.81% 7 Town of Timnath (99.95%)3,990 1.14% 8 Town of Johnstown (14.40%)2,130 0.61% U unincorporated area 67,759 19.33% 7 Douglas County 342,776 6.02% 1 Town of Castle Rock 64,827 18.91% 2 Town of Parker 55,636 16.23% 3 City of Lone Tree 14,653 4.27% 4 City of Castle Pines 10,507 3.07% 5 City of Aurora (0.40%)1,515 0.44% 6 Town of Larkspur 205 0.06% 6 City of Littleton (0.06%)31 0.01% U unincorporated area 195,402 57.01% 8 Boulder County 326,078 5.73% 1 City of Boulder 107,353 32.92% 2 City of Longmont (99.39%)95,988 29.44% 3 City of Lafayette 28,924 8.87% 4 City of Louisville 21,163 6.49% 5 Town of Superior (100%)13,175 4.04% 6 Town of Erie (43.98%)11,191 3.43% 7 Town of Lyons 2,155 0.66% 8 Town of Nederland 1,547 0.47% 9 Town of Jamestown 268 0.08% 10 Town of Ward 164 0.05% U unincorporated area 44,150 13.54% 9 Weld County 314,305 5.52% 1 City of Greeley 107,348 34.15% 2 Town of Windsor (74.87%)21,688 6.90% 3 City of Evans 21,236 6.76% 4 Town of Firestone 14,860 4.73% 5 Town of Erie (56.02%)14,256 4.54% 6 Town of Frederick 13,480 4.29% 7 Town of Johnstown (85.60%)12,665 4.03% 8 City of Fort Lupton 8,275 2.63% 9 Town of Milliken 7,674 2.44% 10 Town of Lochbuie (99.97%)6,936 2.21% 11 City of Dacono 5,826 1.85% 12 Town of Eaton 5,529 1.76% 13 Town of Severance 5,064 1.61% 14 Town of Mead 4,737 1.51% 15 Town of Platteville 2,769 0.88% 16 Town of LaSalle 2,346 0.75% 17 Town of Ault 1,843 0.59% 18 Town of Hudson 1,838 0.58% 19 Town of Kersey 1,655 0.53% 20 Town of Keenesburg 1,229 0.39% 21 Town of Pierce 1,132 0.36% 22 Town of Gilcrest 1,108 0.35% 23 City of Brighton (2.20%)906 0.29% 24 City of Longmont (0.61%)589 0.19% 25 Town of Nunn 463 0.15% 26 Town of Garden City 265 0.08% 27 Town of Berthoud (2.62%)208 0.07% 28 Town of Grover 153 0.05% 29 Town of Raymer 110 0.03% 30 City of Northglenn (0.05%)20 0.01% 31 Town of Timnath (0.05%)2 0.00% 32 City of Thornton (0%)0 0% U unincorporated area 48,095 15.30% 10 Pueblo County 167,529 2.94% 1 City of Pueblo 111,750 66.70% 2 Town of Boone 362 0.22% 3 Town of Rye 162 0.10% U unincorporated area 55,255 32.98% 11 Mesa County 153,207 2.69% 1 City of Grand Junction 63,374 41.36% 2 City of Fruita 13,406 8.75% 3 Town of Palisade 2,714 1.77% 4 Town of Collbran 698 0.46% 5 Town of De Beque 503 0.33% U unincorporated area 72,512 47.33% 12 City and County of Broomfield 69,267 1.22% 1 City and County of Broomfield 69,267 100% 13 Garfield County 59,770 1.05% 1 City of Glenwood Springs 9,972 16.68% 2 City of Rifle 9,732 16.28% 3 Town of Carbondale 6,879 11.51% 4 Town of New Castle 5,024 8.41% 5 Town of Silt 3,181 5.32% 6 Town of Parachute 1,120 1.87% 7 Town of Carbonate 0 0.00% U unincorporated area 23,862 39.92% 14 La Plata County 56,310 0.99% 1 City of Durango 18,985 33.72% 2 Town of Bayfield 2,705 4.80% 3 Town of Ignacio 888 1.58% U unincorporated area 33,732 59.90% 15 Eagle County 54,993 0.97% 1 Town of Gypsum 7,353 13.37% 2 Town of Eagle 6,961 12.66% 3 Town of Avon 6,482 11.79% 4 Town of Vail 5,450 9.91% 5 Town of Basalt (76.86%)3,202 5.82% 6 Town of Minturn 1,129 2.05% 7 Town of Red Cliff 279 0.51% U unincorporated area 24,137 43.89% 16 Fremont County 48,021 0.84% 1 City of Cañon City 16,750 34.88% 2 City of Florence 3,956 8.24% 3 Town of Williamsburg 702 1.46% 4 Town of Rockvale 512 1.07% 5 Town of Coal Creek 348 0.72% 6 Town of Brookside 260 0.54% U unincorporated area 25,493 53.09% 17 Montrose County 42,214 0.74% 1 City of Montrose 19,512 46.22% 2 Town of Olathe 1,825 4.32% 3 Town of Nucla 717 1.70% 4 Town of Naturita 541 1.28% U unincorporated area 19,619 46.48% 18 Summit County 31,007 0.54% 1 Town of Breckenridge 5,020 16.19% 2 Town of Silverthorne 4,821 15.55% 3 Town of Frisco 3,157 10.18% [a] Town of Keystone [a] [a] 4 Town of Dillon 973 3.14% 5 Town of Blue River 927 2.99% 6 Town of Montezuma 68 0.22% U unincorporated area 16,041 51.73% 19 Delta County 30,953 0.54% 1 City of Delta 8,920 28.82% 2 Town of Orchard City 3,161 10.21% 3 Town of Cedaredge 2,266 7.32% 4 Town of Paonia 1,462 4.72% 5 Town of Hotchkiss 933 3.01% 6 Town of Crawford 424 1.37% U unincorporated area 13,787 44.54% 20 Morgan County 28,558 0.50% 1 City of Fort Morgan 11,359 39.78% 2 City of Brush 5,384 18.85% 3 Town of Wiggins 996 3.49% 4 Town of Log Lane Village 874 3.06% 5 Town of Hillrose 254 0.89% U unincorporated area 9,691 33.93% 21 Elbert County 26,282 0.46% 1 Town of Elizabeth 1,416 5.39% 2 Town of Kiowa 757 2.88% 3 Town of Simla 639 2.43% U unincorporated area 23,470 89.30% 22 Montezuma County 26,158 0.46% 1 City of Cortez 8,721 33.34% 2 Town of Mancos 1,419 5.42% 3 Town of Dolores 958 3.66% U unincorporated area 15,060 57.57% 23 Routt County 25,733 0.45% 1 City of Steamboat Springs 13,212 51.34% 2 Town of Hayden 1,970 7.66% 3 Town of Oak Creek 966 3.75% 4 Town of Yampa 464 1.80% U unincorporated area 9,121 35.44% 24 Teller County 25,083 0.44% 1 City of Woodland Park 7,785 31.04% 2 City of Cripple Creek 1,267 5.05% 3 City of Victor 415 1.65% 4 Town of Green Mountain Falls (4.53%)32 0.13% U unincorporated area 15,584 62.13% 25 Logan County 21,528 0.38% 1 City of Sterling 13,630 63.31% 2 Town of Fleming 404 1.88% 3 Town of Merino 279 1.30% 4 Town of Iliff 263 1.22% 5 Town of Peetz 234 1.09% 6 Town of Crook 108 0.50% U unincorporated area 6,610 30.70% 26 Chaffee County 20,027 0.35% 1 City of Salida 5,963 29.77% 2 Town of Buena Vista 2,823 14.10% 3 Town of Poncha Springs 940 4.69% U unincorporated area 10,301 51.44% 27 Park County 18,556 0.36% 1 Town of Fairplay 762 4.11% 2 Town of Alma 312 1.68% U unincorporated area 17,482 94.21% 28 Otero County 18,432 0.32% 1 City of La Junta 6,998 37.97% 2 City of Rocky Ford 3,828 20.77% 3 Town of Fowler 1,144 6.21% 4 Town of Swink 596 3.23% 5 Town of Manzanola 419 2.27% 6 Town of Cheraw 250 1.36% U unincorporated area 5,197 28.20% 29 Pitkin County 17,950 0.32% 1 City of Aspen 7,365 41.03% 2 Town of Snowmass Village 2,773 15.45% 3 Town of Basalt (23.14%)964 5.37% U unincorporated area 6,848 38.15% 30 Gunnison County 17,246 0.30% 1 City of Gunnison 6,594 38.23% 2 Town of Crested Butte 1,681 9.75% 3 Town of Mount Crested Butte 852 4.94% 4 Town of Marble 144 0.83% 5 Town of Pitkin 72 0.42% U unincorporated area 7,903 45.83% 31 Alamosa County 16,683 0.29% 1 City of Alamosa 9,997 59.92% 2 Town of Hooper 101 0.61% U unincorporated area 6,585 39.47% 32 Grand County 15,525 0.27% 1 Town of Granby 2,098 13.51% 2 Town of Kremmling 1,503 9.68% 3 Town of Fraser 1,302 8.39% 4 Town of Winter Park 1,051 6.77% 5 Town of Hot Sulphur Springs 716 4.61% 6 Town of Grand Lake 504 3.25% U unincorporated area 8,351 53.79% 33 Las Animas County 14,503 0.25% 1 City of Trinidad 8,211 56.62% 2 Town of Aguilar 484 3.34% 3 Town of Cokedale 121 0.83% 4 Town of Branson 69 0.48% 4 Town of Kim 69 0.48% 5 Town of Starkville 55 0.38% U unincorporated area 5,494 37.88% 34 Archuleta County 13,765 0.24% 1 Town of Pagosa Springs 2,005 14.57% U unincorporated area 11,760 85.43% 35 Moffat County 13,188 0.23% 1 City of Craig 8,947 67.84% 2 Town of Dinosaur 329 2.49% U unincorporated area 3,912 29.66% 36 Prowers County 12,164 0.21% 1 City of Lamar 7,656 62.94% 2 Town of Holly 775 6.37% 3 Town of Granada 500 4.11% 4 Town of Wiley 393 3.23% 5 Town of Hartman 75 0.62% U unincorporated area 2,765 22.73% 37 Rio Grande County 11,250 0.20% 1 City of Monte Vista 4,124 36.66% 2 Town of Del Norte 1,563 13.89% 3 Town of South Fork 351 3.12% 4 Town of Center (8.64%)199 1.77% U unincorporated area 5,013 44.56% 38 Yuma County 10,020 0.18% 1 City of Yuma 3,460 34.53% 2 City of Wray 2,334 23.29% 3 Town of Eckley 258 2.57% U unincorporated area 3,968 39.60% 39 Clear Creek County 9,605 0.17% 1 City of Idaho Springs 1,794 18.68% 2 Town of Georgetown 1,088 11.33% 3 Town of Empire 303 3.15% 4 Town of Silver Plume 176 1.83% 5 Central City (0%)0 0% U unincorporated area 6,244 65.01% 40 Conejos County 8,200 0.14% 1 Town of Manassa 993 12.11% 2 Town of Sanford 880 10.73% 3 Town of La Jara 803 9.79% 4 Town of Antonito 753 9.18% 5 Town of Romeo 406 4.95% U unincorporated area 4,365 53.23% 41 San Miguel County 8,191 0.14% 1 Town of Telluride 2,484 30.33% 2 Town of Mountain Village 1,434 17.51% 3 Town of Norwood 591 7.22% 4 Town of Ophir 179 2.19% 5 Town of Sawpit 39 0.48% U unincorporated area 3,464 42.29% 42 Lake County 7,824 0.14% 1 City of Leadville 2,762 35.30% U unincorporated area 5,062 64.70% 43 Kit Carson County 7,163 0.13% 1 City of Burlington 3,178 44.37% 2 Town of Stratton 650 9.07% 3 Town of Flagler 551 7.69% 4 Town of Bethune 237 3.31% 5 Town of Seibert 216 3.02% 6 Town of Vona 104 1.45% U unincorporated area 2,227 31.09% 44 Huerfano County 6,889 0.12% 1 City of Walsenburg 3,046 44.22% 2 Town of La Veta 810 11.76% U unincorporated area 3,033 44.03% 45 Saguache County 6,843 0.12% 1 Town of Center (91.36%)2,105 30.76% 2 Town of Saguache 504 7.37% 3 Town of Crestone 146 2.13% 4 Town of Moffat 120 1.75% 5 Town of Bonanza 19 0.28% U unincorporated area 3,949 57.71% 46 Rio Blanco County 6,336 0.11% 1 Town of Rangely 2,291 36.16% 2 Town of Meeker 2,261 35.68% U unincorporated area 1,784 28.16% 47 Gilpin County 6,121 0.11% 1 Central City 765 12.50% 2 City of Black Hawk 127 2.07% U unincorporated area 5,229 85.43% 48 Bent County 5,882 0.10% 1 City of Las Animas 2,190 37.23% U unincorporated area 3,692 62.77% 49 Crowley County 5,858 0.10% 1 Town of Ordway 1,028 17.55% 2 Town of Olney Springs 329 5.62% 3 Town of Sugar City 246 4.20% 4 Town of Crowley 167 2.85% U unincorporated area 4,088 69.78% 50 Lincoln County 5,610 0.10% 1 Town of Limon 1,924 34.30% 2 Town of Hugo 748 13.33% 3 Town of Arriba 202 3.60% 4 Town of Genoa 145 2.58% U unincorporated area 2,591 46.19% 51 Custer County 4,954 0.09% 1 Town of Silver Cliff 657 13.26% 2 Town of Westcliffe 620 12.52% U unincorporated area 3,677 74.22% 52 Washington County 4,909 0.09% 1 Town of Akron 1,723 35.10% 2 Town of Otis 485 9.88% U unincorporated area 2,701 55.02% 53 Ouray County 4,833 0.08% 1 Town of Ridgway 1,016 21.02% 2 City of Ouray 1,010 20.90% U unincorporated area 2,807 58.08% 54 Phillips County 4,286 0.08% 1 City of Holyoke 2,217 51.73% 2 Town of Haxtun 907 21.16% 3 Town of Paoli 35 0.82% U unincorporated area 1,127 26.29% 55 Costilla County 3,828 0.07% 1 Town of San Luis 644 16.82% 2 Town of Blanca 397 10.37% U unincorporated area 2,787 72.81% 56 Baca County 3,585 0.06% 1 Town of Springfield 1,379 38.47% 2 Town of Walsh 517 14.42% 3 Town of Pritchett 132 3.68% 4 Town of Vilas 107 2.98% 5 Town of Campo 103 2.87% 6 Town of Two Buttes 40 1.12% U unincorporated area 1,307 36.46% 57 Sedgwick County 2,303 0.04% 1 Town of Julesburg 1,180 51.24% 2 Town of Ovid 308 13.37% 3 Town of Sedgwick 140 6.08% U unincorporated area 675 29.31% 58 Dolores County 2,074 0.04% 1 Town of Dove Creek 630 30.38% 2 Town of Rico 232 11.19% U unincorporated area 1,212 58.44% 59 Cheyenne County 1,876 0.03% 1 Town of Cheyenne Wells 853 45.47% 2 Town of Kit Carson 238 12.69% U unincorporated area 785 41.84% 60 Jackson County 1,399 0.02% 1 Town of Walden 600 42.89% U unincorporated area 799 57.11% 61 Kiowa County 1,383 0.02% 1 Town of Eads 592 42.81% 2 Town of Sheridan Lake 82 5.93% 3 Town of Haswell 67 4.84% U unincorporated area 642 46.42% 62 Hinsdale County 811 0.01% 1 Town of Lake City 387 47.72% U unincorporated area 424 52.28% 63 Mineral County 776 0.01% 1 Town of Creede 317 40.85% U unincorporated area 459 59.15% 64 San Juan County 762 0.01% 1 Town of Silverton 694 91.08% U unincorporated area 68 8.92%
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