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    Jan 1990    
 
 
    Dec 2018
Persons
Name Dec 2018 Nov 2018 Dec 2017
Adams County
271,280 271,043 264,405
Alamosa County
8,727 8,825 8,384
Arapahoe County
364,221 364,251 355,038
Archuleta County
6,914 7,016 6,479
Baca County
2,257 2,302 2,166
Bent County
2,070 2,125 1,997
Boulder County
194,860 195,553 189,048
Broomfield County/city
39,350 39,316 38,345
Chaffee County
9,622 9,462 9,163
Cheyenne County
1,191 1,240 1,202
Clear Creek County
6,034 6,059 5,902
Conejos County
4,155 4,198 4,009
Costilla County
1,963 2,015 1,880
Crowley County
1,579 1,592 1,483
Custer County
2,064 2,075 2,017
Delta County
15,177 15,517 14,472
Denver County/city
411,708 411,673 401,313
Dolores County
1,225 1,246 1,178
Douglas County
189,993 190,044 185,186
Eagle County
38,579 35,341 37,331
Elbert County
14,931 14,964 14,576
El Paso County
349,709 349,284 329,377
Fremont County
15,430 15,580 15,004
Garfield County
33,818 31,643 32,975
Gilpin County
3,716 3,723 3,628
Grand County
10,556 9,454 10,448
Gunnison County
11,568 10,719 10,970
Hinsdale County
410 396 480
Huerfano County
2,627 2,613 2,656
Jackson County
1,042 1,083 989
Jefferson County
336,877 336,964 328,638
Kiowa County
1,026 1,034 1,000
Kit Carson County
4,693 4,827 4,654
Lake County
5,188 4,823 4,980
La Plata County
32,381 32,518 31,928
Larimer County
205,101 206,277 196,349
Las Animas County
6,662 6,882 6,282
Lincoln County
2,518 2,560 2,474
Logan County
11,342 11,506 11,328
Mesa County
76,620 76,870 74,943
Mineral County
520 460 404
Moffat County
7,847 7,769 7,476
Montezuma County
13,477 13,703 12,841
Montrose County
22,560 22,758 21,087
Morgan County
16,924 17,119 16,156
Otero County
8,953 9,059 8,510
Ouray County
2,372 2,406 2,207
Park County
10,519 10,523 10,243
Phillips County
2,698 2,812 2,663
Pitkin County
11,743 11,350 11,414
Prowers County
6,536 6,669 6,328
Pueblo County
76,331 76,462 75,134
Rio Blanco County
2,869 2,954 2,804
Rio Grande County
5,800 5,858 5,616
Routt County
17,744 16,803 16,737
Saguache County
3,763 3,784 3,481
San Juan County
447 384 497
San Miguel County
6,025 4,938 5,942
Sedgwick County
1,315 1,343 1,271
Summit County
25,245 22,519 24,660
Teller County
12,959 12,936 12,223
Washington County
3,172 3,268 3,182
Weld County
165,552 166,718 160,310
Yuma County
6,083 6,239 5,966
   

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