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2021 Colorado Individual Statistics of Income
State Return Data
Table 5. Income and Tax Data by County
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This table summarizes income and tax data as reported on full-year resident Colorado returns by Colorado county. Mailing address zip codes are used to categorize the Colorado county.
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Intentionally left blank
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CountyNumber
of Returns		Federal AGIFederal
Taxable Income		Colorado
Taxable Income ¹		Colorado
Gross Tax ²		Colorado
Net Tax
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Adams229,266$16,066,857,777 $11,979,558,149 $10,946,094,604 $514,175,717 $506,168,555
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Alamosa7,143$392,624,568 $274,761,099 $228,754,716 $11,214,649 $10,530,018
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Arapahoe327,266$33,694,011,548 $27,225,389,939 $25,413,180,405 $1,176,878,103 $1,127,557,824
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Archuleta6,486$530,041,099 $402,117,818 $330,059,248 $15,984,067 $13,452,257
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Baca1,497$59,559,573 $45,974,164 $20,978,546 $1,791,100 $1,632,678
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Bent2,350$75,554,343 $48,449,320 $35,317,178 $1,946,253 $1,867,941
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Boulder161,115$23,523,965,717 $19,958,465,154 $18,767,792,791 $867,139,436 $816,731,041
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Broomfield38,398$4,878,016,125 $4,081,842,337 $3,822,763,235 $175,678,920 $170,620,775
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Chaffee10,199$914,313,207 $712,651,711 $610,705,909 $28,878,560 $26,962,135
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Cheyenne786$52,860,541 $43,365,311 $32,002,341 $1,827,626 $1,516,565
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Clear Creek2,908$210,950,620 $159,201,794 $141,719,996 $6,628,169 $6,531,521
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Conejos3,360$149,486,144 $98,950,134 $70,759,928 $3,892,378 $3,581,276
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Costilla1,493$60,181,654 $37,851,639 $25,011,511 $1,431,576 $1,332,169
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Crowley1,870$53,516,438 $35,658,684 $24,306,629 $1,406,105 $1,365,675
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Custer2,334$178,604,125 $136,408,160 $98,600,226 $5,094,283 $4,879,782
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Delta14,496$825,960,125 $583,144,538 $435,576,628 $22,780,372 $21,836,177
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Denver346,005$41,771,725,652 $35,016,966,279 $34,438,022,951 $1,580,984,875 $1,499,874,760
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Dolores878$43,493,483 $32,083,553 $21,422,306 $1,277,673 $1,139,242
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Douglas170,348$26,165,181,012 $22,038,408,053 $20,924,213,210 $957,962,861 $925,330,744
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Eagle24,023$4,105,271,201 $3,525,768,152 $3,386,807,810 $156,310,404 $137,547,084
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El Paso313,197$25,897,516,248 $19,847,048,208 $17,693,921,010 $829,715,618 $806,679,818
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Elbert9,134$929,857,663 $738,975,561 $663,964,439 $31,072,251 $30,208,357
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Fremont21,137$1,132,157,496 $800,119,541 $618,227,736 $30,904,936 $29,663,275
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Garfield31,201$3,008,148,005 $2,361,182,444 $2,185,190,746 $102,110,810 $97,599,796
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Gilpin2,623$252,552,588 $203,509,065 $184,725,222 $8,666,122 $7,581,825
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Grand7,458$725,989,393 $582,849,562 $524,091,038 $24,690,688 $23,937,149
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Gunnison8,349$810,441,135 $654,198,028 $591,159,850 $28,020,445 $26,469,555
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Hinsdale351$30,459,743 $23,375,478 $19,038,270 $897,808 $877,895
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Huerfano2,910$149,086,871 $104,087,139 $72,908,017 $3,960,383 $3,794,811
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Jackson624$38,118,399 $28,398,693 $21,575,913 $1,142,464 $1,096,237
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Jefferson316,784$34,726,565,552 $28,337,896,319 $26,112,353,851 $1,207,925,947 $1,168,633,070
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Kiowa628$37,530,927 $27,662,041 $19,899,092 $1,102,185 $952,706
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Kit Carson3,245$212,628,910 $163,681,546 $127,043,904 $6,742,694 $5,696,883
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La Plata26,389$2,682,717,417 $2,145,090,571 $1,919,600,030 $90,145,323 $82,522,218
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Lake3,607$226,576,133 $164,444,919 $147,573,547 $6,931,370 $6,729,419
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Larimer167,268$15,869,459,408 $12,705,034,782 $11,402,110,854 $535,680,180 $514,341,063
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Las Animas6,249$307,704,151 $212,730,765 $150,262,286 $8,181,869 $7,749,725
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Lincoln2,184$113,564,095 $82,070,350 $62,743,194 $3,285,303 $3,125,104
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Logan9,240$542,724,072 $393,305,957 $324,179,785 $15,921,307 $14,665,355
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Mesa72,802$5,155,248,272 $3,829,661,063 $3,250,555,649 $156,435,906 $150,778,099
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Mineral410$31,830,487 $23,190,784 $18,450,814 $881,808 $814,228
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Moffat5,932$361,823,332 $265,444,563 $212,393,567 $10,882,333 $10,638,755
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Montezuma11,887$960,026,034 $756,082,829 $635,569,052 $31,073,684 $28,783,238
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Montrose20,511$1,314,989,527 $955,665,802 $754,911,470 $37,750,262 $36,085,801
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Morgan13,980$838,236,437 $601,203,763 $510,314,941 $25,070,202 $24,018,420
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Otero8,314$368,733,603 $248,925,656 $174,971,376 $9,769,485 $9,564,555
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Ouray2,284$357,635,116 $309,904,457 $280,707,709 $13,128,597 $11,600,427
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Park7,386$586,376,466 $446,046,734 $382,997,467 $18,219,369 $17,799,915
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Phillips2,161$140,112,075 $102,213,531 $81,043,842 $4,157,140 $3,588,329
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Pitkin11,800$5,262,160,872 $4,616,731,516 $4,514,659,954 $207,378,944 $184,608,546
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Prowers5,203$253,201,212 $174,439,804 $130,548,999 $7,073,266 $6,448,611
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Pueblo77,253$4,632,943,032 $3,324,198,582 $2,762,505,483 $134,402,828 $132,130,718
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Rio Blanco2,605$188,021,617 $141,674,802 $117,426,380 $5,795,933 $5,628,856
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Rio Grande5,406$339,420,729 $244,921,402 $201,450,393 $10,033,884 $9,262,296
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Routt12,896$2,603,075,068 $2,220,370,813 $2,118,181,807 $97,913,828 $85,274,442
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Saguache2,999$137,032,960 $103,389,736 $68,139,441 $4,244,570 $3,768,116
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San Juan368$24,321,675 $18,148,571 $14,978,453 $736,326 $660,092
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San Miguel4,144$786,886,973 $688,522,156 $666,471,127 $30,811,785 $25,545,088
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Sedgwick1,000$45,935,819 $31,346,462 $19,596,984 $1,191,975 $1,049,415
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Summit16,302$2,079,702,754 $1,729,285,469 $1,654,080,651 $75,933,554 $71,678,235
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Teller12,051$963,865,989 $728,309,152 $604,353,233 $29,103,902 $28,183,021
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Washington1,931$104,819,734 $72,357,504 $54,654,166 $2,885,362 $2,515,921
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Weld155,406$13,224,355,858 $10,235,771,665 $9,326,169,248 $437,828,263 $428,185,643
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Yuma4,401$271,877,811 $198,693,224 $158,722,519 $8,196,094 $7,155,143
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Intentionally left blank
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Source: Colorado individual income tax returns (full-year residents only)
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¹ Colorado Taxable Income (CTI) can be positive, zero, or negative. CTI is negative when losses and/or subtractions exceed income and additions.
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² Colorado Gross Tax is calculated by multiplying positive CTI by the income tax rate. To find the positive CTI subject to tax, divide the Colorado Gross Tax by the income tax rate.
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Prepared by: Office of Research and Analysis, Taxation Division, Colorado Department of Revenue | dor_ora@state.co.us
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Data extracted: August 24, 2023
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Publish date: October 2025
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End of worksheet
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