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Colorado Department of Revenue
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2018 Individual Statistics of Income
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Table 20. Income and Tax Data by Region 1
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This table uses mailing addresses to categorize full-year resident returns by Colorado region. A region is a group of one or more counties. Aggregate income and tax data are summarized for each region.
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I. Number of Returns, Income, and Tax Data
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Region Number of Returns Federal AGI Federal Taxable Income Colorado Gross Tax Colorado Net Tax Federal Tax
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Central Mountains49,142$2,866,026,498 $2,046,271,971 $81,389,967 $78,510,122 $306,518,351
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Eastern Plains58,182$3,135,512,912 $2,281,811,163 $94,961,393 $90,042,878 $335,893,082
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Front Range2,042,089$174,776,953,406 $136,868,139,731 $5,949,500,917 $5,744,904,112 $24,637,536,715
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San Luis Valley17,590$810,234,119 $549,707,553 $22,209,212 $20,376,981 $79,318,438
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Western Slope249,110$19,161,223,526 $14,755,466,236 $630,738,259 $586,415,086 $2,682,579,735
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Total2,416,113$200,749,950,461 $156,501,396,654 $6,778,799,748 $6,520,249,179 $28,041,846,321
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II. Average Dollar Amounts per Return
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Region Federal AGI Federal Taxable Income Colorado Gross Tax Colorado Net Tax Federal Tax
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Central Mountains$58,321 $41,640 $1,656 $1,598 $6,237
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Eastern Plains$53,891 $39,219 $1,632 $1,548 $5,773
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Front Range$85,587 $67,024 $2,913 $2,813 $12,065
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San Luis Valley$46,062 $31,251 $1,263 $1,158 $4,509
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Western Slope$76,919 $59,233 $2,532 $2,354 $10,769
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Average$83,088 $64,774 $2,806 $2,699 $11,606
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Source: Federal and Colorado individual income tax returns (full-year residents only)
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1 This table includes all returns matched to a Colorado region by zip code. Returns with zip codes that do not fit into the Colorado regions defined by the Colorado Department of Local Affairs are excluded.
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Prepared by: Office of Research and Analysis, Colorado Department of Revenue | dor_ora@state.co.us
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Data extracted: August 20, 2020
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Publish date: November 2021
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