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U.S. Census Bureau · 2025 Population Estimates Program (PEP)

Colorado County Population — 2025 PEP

July 1, 2025 resident population estimates for 64 counties. State total (sum of these county estimates): 6,012,561 persons.

Separate 2025 TIGER/Line county boundaries validate county identity; these are not ACS 2024 survey estimates.

Official Vintage 2025 county identities and unsimplified TIGER coordinates; separate-period ACS housing is joined only by exact full GEOID. Original 2020 counts require separately evidenced compatible geography; incompatible observations remain null with reasons. The revised April estimates base is not an original census count; no boundary allocation is invented.

Source and downloads

2025 Census PEP county estimates, 2020–2025 series; counts are persons, migration counts are persons, published rates are per 1,000, and unavailable values remain null (not zero). 2020 rates are unavailable for the partial-year interval. County totals and characteristics are verified against the pinned raw Census CSV receipts and independent 2025 county geometry.

Official Census PEP county source · Download JSON · Download CSV · Download source metadata

Official state totals and county summaries

Official NST July 1, 2025 state total: 6,012,561 persons (SUMLEV 040, PEP Vintage 2025). County sum: 6,012,561 persons; comparison status: equal.

Official NST July 2020: 5,786,873 persons; July 2020–July 2025 change: +225,688 persons; growth: 3.899999 percent (denominator: official July 2020 population).

County July 2024–July 2025: Growing: 30 · Shrinking: 33 · Unchanged: 1 · Missing: 0. Median county growth: -0.025480 percent.

Largest county: El Paso County (GEOID 08041): 757040 persons.

Fastest county growth: Elbert County (GEOID 08039): 4.055344 percent.

Greatest numeric increase: Weld County (GEOID 08123): 7146 persons.

no minimum population; missing excluded per measure; median of county percentages, not population weighted; equal values use ascending full GEOID.

Official state demographics

Resident population · SUMLEV 040 · July 1, 2025 · Census PEP Vintage 2025. Denominator for every share: 6,012,561 resident persons. Six exclusive race groups; Hispanic origin overlaps race and must not be added to it. Release: June 2026; exact day unproved; PEP estimates have no ACS sampling MOE.

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Official state age, sex, race and overlapping Hispanic origin
MeasureCountShare
Female2,992,400 persons49.769142 percent
Male3,020,161 persons50.230858 percent
Ages 18–24561,081 persons9.331814 percent
Ages 25–441,832,068 persons30.470676 percent
Ages 45–641,370,021 persons22.785981 percent
Ages 65 and older1,029,188 persons17.117298 percent
Under 181,220,203 persons20.294231 percent
American Indian or Alaska Native alone135,776 persons2.258206 percent
Asian alone257,440 persons4.281703 percent
Black or African American alone294,603 persons4.899792 percent
Native Hawaiian or other Pacific Islander alone15,038 persons0.250110 percent
Two or more races337,037 persons5.605548 percent
White alone4,972,667 persons82.704641 percent
Hispanic (any race)1,448,876 persons24.097485 percent
Not Hispanic4,563,685 persons75.902515 percent

Official state median age: 38.0 years. Published state SYASEX median age; not a county aggregation, not ACS.

Download all state demographic observations (CSV)

Revised April 1, 2020 estimates base (official NST): 5,775,326 persons; county base sum: 5,775,326 persons; comparison: equal. This is not the original decennial census count.

Original April 1, 2020 Census count: 64 compatible counties; 0 unavailable. Published Census county centers-of-population POPULATION, original 2020 Gazetteer and official 2020–2025 geographic-change evidence; no boundary allocation. Original count, revised April estimates base and July 2020 estimate are separate observations. Documentation: November 2021; exact file release day unproved; retrieval is not release. Official original count source. Original 2020 Gazetteer identity plus Census geographic-change notes 2014–2025; no county-level change recorded from 2020 onward, exact full modern name, and original count required. Any recorded county-level change or referenced counterparty is conservatively unavailable, including unresolved internal redistricting. Same GEOID alone is insufficient. Not a claim of identical cartographic coordinates; no invented allocations.

Source release date unavailable: retained pins do not attest an official release date; retrieval is not release. Reference dates and Vintage 2025 are explicit; no current-vintage refresh is implied.

County population and demographic explorer

Choose a measure, observation year and county without downloading boundaries. Rankings, search, trends and CSV work without a map. Load map explicitly to download the full, unsimplified 2025 TIGER boundaries; this defers rather than removes their payload. The table remains available without JavaScript.

PEP population · persons · July 1, 2025. Denominator: none. Calculation/source: CO POPESTIMATEy. Vintage 2025; null with metric_status reason; measured zero remains zero; no imputation.

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After loading, Tab to a county and press Enter or Space; colors and the legend indicate signed direction and magnitude. Outlines show selection. The county picker works before and after map loading.

Selected county demographic breakdown

July 1, 2025 · El Paso County (GEOID 08041). Same-period county population is the share denominator. Hispanic origin overlaps race; do not add origin to race counts. Other overlapping classifications are not additive. Official county median age is from PEP AGESEX MEDIAN_AGE_TOT, not ACS.

County demographics: counts, shares and official median age
Classification / sourceCount or statisticShare / status
Sex · PEP male380,449 persons50.254808 percent
Sex · PEP female376,591 persons49.745192 percent
Age bands · PEP under18168,317 persons22.233568 percent
Age bands · PEP age18 2478,226 persons10.333140 percent
Age bands · PEP age25 44230,070 persons30.390732 percent
Age bands · PEP age45 64160,998 persons21.266776 percent
Age bands · PEP age65plus119,429 persons15.775785 percent
Race alone (partition) · PEP white alone597,978 persons78.988957 percent
Race alone (partition) · PEP black alone53,328 persons7.044278 percent
Race alone (partition) · PEP aian alone13,474 persons1.779827 percent
Race alone (partition) · PEP asian alone28,081 persons3.709315 percent
Race alone (partition) · PEP nhpi alone3,428 persons0.452816 percent
Race alone (partition) · PEP two or more60,751 persons8.024807 percent
Hispanic origin (overlaps race) · PEP hispanic any race154,577 persons20.418604 percent
Hispanic origin (overlaps race) · PEP not hispanic602,463 persons79.581396 percent
Other overlapping classifications (not additive) · PEP white alone or combination655,133 persons86.538756 percent
Other overlapping classifications (not additive) · PEP not hispanic white alone480,860 persons63.518440 percent
Official county median age · AGESEX MEDIAN_AGE_TOT35.7 yearsNot a share; not ACS or an average of county medians

Use Ctrl/Command or Shift to select multiple counties. The following trend uses exact resident persons, not percentages; county size affects the scale. Missing observations break lines; the revised April estimates base is a separate dashed partial interval.

2025 county population rankings

All 64 county estimates are present without JavaScript, ranked by 2025 population (largest first). Signed changes compare July 1, 2024 to July 1, 2025. Unavailable is not zero; equal values break ties by GEOID (ascending).

Showing all 64 counties; ranked by 2025 population, descending.

Colorado County Population — 2025 PEP — July 1, 2025; rank reflects the selected ordering
RankCountyGEOIDPopulation (persons)Signed change (persons)Signed change (percent)
1El Paso County08041757,040+4684 persons+0.622578%
2Denver County08031740,613-978 persons-0.131879%
3Arapahoe County08005673,820-1940 persons-0.287084%
4Jefferson County08059580,451+92 persons+0.015852%
5Adams County08001554,668+5411 persons+0.985149%
6Douglas County08035399,396+6345 persons+1.614294%
7Weld County08123378,426+7146 persons+1.924693%
8Larimer County08069377,292+3092 persons+0.826296%
9Boulder County08013328,560-925 persons-0.280741%
10Pueblo County08101169,277-885 persons-0.520093%
11Mesa County08077162,845+1445 persons+0.895291%
12Broomfield County0801479,174+771 persons+0.983381%
13Garfield County0804563,474-346 persons-0.542150%
14La Plata County0806756,898-32 persons-0.056209%
15Eagle County0803754,291-344 persons-0.629633%
16Fremont County0804350,039+35 persons+0.069994%
17Montrose County0808544,591-96 persons-0.214828%
18Delta County0802932,178-116 persons-0.359200%
19Summit County0811731,517-126 persons-0.398192%
20Elbert County0803930,534+1190 persons+4.055344%
21Morgan County0808730,306-10 persons-0.032986%
22Montezuma County0808326,678-16 persons-0.059939%
23Routt County0810725,329-142 persons-0.557497%
24Teller County0811924,756+13 persons+0.052540%
25Chaffee County0801520,831+35 persons+0.168302%
26Logan County0807520,654-36 persons-0.173997%
27Park County0809318,314-35 persons-0.190746%
28Otero County0808917,683-205 persons-1.146020%
29Gunnison County0805117,439+32 persons+0.183834%
30Alamosa County0800316,688-3 persons-0.017974%
31Pitkin County0809716,625-141 persons-0.840988%
32Grand County0804916,496+213 persons+1.308113%
33Las Animas County0807114,391-120 persons-0.826959%
34Archuleta County0800714,306+172 persons+1.216924%
35Moffat County0808113,122-182 persons-1.368010%
36Prowers County0809911,884-20 persons-0.168011%
37Rio Grande County0810511,087-56 persons-0.502558%
38Yuma County081259,896+23 persons+0.232959%
39Clear Creek County080198,994-29 persons-0.321401%
40San Miguel County081137,753-65 persons-0.831415%
41Lake County080657,552+81 persons+1.084192%
42Conejos County080217,529+5 persons+0.066454%
43Kit Carson County080637,069+42 persons+0.597695%
44Huerfano County080557,011+18 persons+0.257400%
45Saguache County081096,732+46 persons+0.688005%
46Rio Blanco County081036,683-109 persons-1.604829%
47Gilpin County080476,073+118 persons+1.981528%
48Bent County080115,716-29 persons-0.504787%
49Crowley County080255,677+29 persons+0.513456%
50Lincoln County080735,645+43 persons+0.767583%
51Custer County080275,590+23 persons+0.413149%
52Ouray County080915,265+92 persons+1.778465%
53Washington County081214,732-16 persons-0.336984%
54Phillips County080954,420-34 persons-0.763359%
55Costilla County080233,679+6 persons+0.163354%
56Baca County080093,347-39 persons-1.151802%
57Dolores County080332,466+14 persons+0.570962%
58Sedgwick County081152,247-24 persons-1.056803%
59Cheyenne County080171,713+21 persons+1.241135%
60Kiowa County080611,412+9 persons+0.641483%
61Jackson County080571,211-66 persons-5.168363%
62Mineral County08079910-14 persons-1.515152%
63San Juan County08111813-8 persons-0.974421%
64Hinsdale County080537530 persons0.000000%

County population trend · 2020–2025

Resident population (persons), not ACS housing. April 1, 2020 estimates base is distinct from the July 1, 2020 estimate. The April–July 2020 change is partial-year; the July 2020–July 2021 interval is the first July-to-July comparison. No 2020 annual rate is shown. Missing observations are unavailable, never zero.

Showing El Paso County (GEOID 08041). Select a county on the map or in the rankings table to update this trend.

Horizontal axis: year (2020–2025); vertical axis: resident population (persons). The 2020 base is a separate April 1 observation; July 1 estimates run from 2020 through 2025. Focus the chart viewport and use Left/Right arrows to scroll on narrow screens. Complete axis labels stay here outside the scrolling chart; the table gives exact values and availability.

Population observations for El Paso County (GEOID 08041), persons
DatePopulation (persons)Interval
April 1, 2020 base731,786Estimates base; not July 1
July 1, 2020733,721April–July partial-year; no annual rate
July 1, 2021738,405July 2020–July 2021 comparison
July 1, 2022741,819July-to-July estimate
July 1, 2023745,819July-to-July estimate
July 1, 2024752,356July-to-July estimate
July 1, 2025757,040July-to-July estimate

County population and median home value · different vintages

Each point pairs a county’s PEP July 1, 2025 resident population (persons) with its ACS 2024 5-year median owner-occupied home value (B25077, U.S. dollars). These are different reference periods and different statistical programs. This descriptive comparison does not imply causality or matched vintages. Suppressed, missing or invalid ACS estimates are unavailable, not zero and not plotted. A valid zero remains zero.

The exact-value table below works without JavaScript; chart loading requires JavaScript.

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County comparison: PEP July 1, 2025 population (persons) and ACS 2024 5-year median owner-occupied home value (U.S. dollars); unavailable values identified
CountyGEOIDPEP July 1, 2025 population (persons)ACS 2024 5-year median home value (U.S. dollars)
Adams County08001554,668$484,200
Alamosa County0800316,688$239,100
Arapahoe County08005673,820$561,200
Archuleta County0800714,306$478,100
Baca County080093,347$122,900
Bent County080115,716$146,900
Boulder County08013328,560$756,300
Broomfield County0801479,174$664,500
Chaffee County0801520,831$665,700
Cheyenne County080171,713$187,500
Clear Creek County080198,994$608,500
Conejos County080217,529$193,400
Costilla County080233,679$184,700
Crowley County080255,677$116,200
Custer County080275,590$392,100
Delta County0802932,178$343,200
Denver County08031740,613$616,000
Dolores County080332,466$247,600
Douglas County08035399,396$713,600
Eagle County0803754,291$839,500
Elbert County0803930,534$709,800
El Paso County08041757,040$461,000
Fremont County0804350,039$324,000
Garfield County0804563,474$527,800
Gilpin County080476,073$573,900
Grand County0804916,496$601,500
Gunnison County0805117,439$621,800
Hinsdale County08053753$437,900
Huerfano County080557,011$247,800
Jackson County080571,211$239,600
Jefferson County08059580,451$637,600
Kiowa County080611,412$161,500
Kit Carson County080637,069$239,500
Lake County080657,552$466,100
La Plata County0806756,898$591,500
Larimer County08069377,292$569,100
Las Animas County0807114,391$237,600
Lincoln County080735,645$246,500
Logan County0807520,654$245,300
Mesa County08077162,845$378,600
Mineral County08079910$430,500
Moffat County0808113,122$289,500
Montezuma County0808326,678$331,400
Montrose County0808544,591$388,400
Morgan County0808730,306$338,600
Otero County0808917,683$168,900
Ouray County080915,265$739,800
Park County0809318,314$532,100
Phillips County080954,420$258,200
Pitkin County0809716,625$1,139,100
Prowers County0809911,884$160,600
Pueblo County08101169,277$291,300
Rio Blanco County081036,683$274,400
Rio Grande County0810511,087$239,500
Routt County0810725,329$854,700
Saguache County081096,732$212,600
San Juan County08111813$432,500
San Miguel County081137,753$720,700
Sedgwick County081152,247$149,000
Summit County0811731,517$939,900
Teller County0811924,756$479,900
Washington County081214,732$226,200
Weld County08123378,426$471,700
Yuma County081259,896$211,700