CountyAtlas

CountyAtlas Colorado

Colorado County Map with Cities — All 64 Counties

All 64 of Colorado's counties, mapped from official U.S. Census boundaries with population, income, and unemployment for every one. Colour the map by any measure, tap a county for its data, or download a print-ready copy.

Colorado CountiesFIPS 08
Adams CountyAlamosa CountyArapahoe CountyArchuleta CountyBaca CountyBent CountyBoulder CountyBroomfield CountyChaffee CountyCheyenne CountyClear Creek CountyConejos CountyCostilla CountyCrowley CountyCuster CountyDelta CountyDenver CountyDolores CountyDouglas CountyEagle CountyElbert CountyEl Paso CountyFremont CountyGarfield CountyGilpin CountyGrand CountyGunnison CountyHinsdale CountyHuerfano CountyJackson CountyJefferson CountyKiowa CountyKit Carson CountyLake CountyLa Plata CountyLarimer CountyLas Animas CountyLincoln CountyLogan CountyMesa CountyMineral CountyMoffat CountyMontezuma CountyMontrose CountyMorgan CountyOtero CountyOuray CountyPark CountyPhillips CountyPitkin CountyProwers CountyPueblo CountyRio Blanco CountyRio Grande CountyRoutt CountySaguache CountySan Juan CountySan Miguel CountySedgwick CountySummit CountyTeller CountyWashington CountyWeld CountyYuma County
Albers Equal Area ConicDatum NAD83Census PEP · SAIPE · BLS LAUS · TIGER
CountyAtlasEdition
Colorado’s 64 counties, projected equal-area. Hover or tap a county for its name; select it for full data.
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Tap any county for its population, income, and more.

Colorado at a glance

  • Scale. Colorado is divided into 64 counties across 103,637 sq mi of land — an average of 1,619 sq mi each. Census TIGER
  • People. Its counties are home to 5,877,610 residents — an average of 91,838 each, or 57 per square mile statewide. Census PEP 2023
  • Water. Another 458 sq mi is water — 0.4% of the state’s area, led by Larimer County. Census TIGER

Colorado’s 64 counties, by the numbers

Every county’s population, median household income, unemployment, density, and land area — sortable by any column, so you can find yours or rank by what matters to you. A few patterns run through the data:

  • Concentrated. Half of Colorado’s 5,877,610 residents live in just 5 of 64 counties, and the five largest hold 54.9% of the total. Census PEP 2023
  • Income tracks poverty. The gap from richest to poorest runs 3.9×, and the 10 highest-income counties average 6.8% in poverty against 21.4% for the 10 lowest. Census SAIPE 2023
  • Mostly small. Half of Colorado’s counties have fewer than 15,142 residents, and half report a median household income below $72,982 — a few metros lift the statewide totals well above both. Census PEP 2023 · SAIPE 2023
  • Lopsided density. Only 11 of 64 counties are denser than Colorado’s statewide average of 57 people per square mile — the rest are more rural. Census PEP 2023 · TIGER
Adams County533,365$95,2783.9%457/sq mi1,167 sq miBrighton
Alamosa County16,655$50,0564.3%23/sq mi723 sq miAlamosa
Arapahoe County656,061$97,5603.6%822/sq mi798 sq miLittleton
Archuleta County14,189$74,4322.9%11/sq mi1,350 sq miPagosa Springs
Baca County3,344$47,4212.4%1/sq mi2,555 sq miSpringfield
Bent County5,681$44,9604.1%4/sq mi1,513 sq miLas Animas
Boulder County326,831$97,1703.6%450/sq mi726 sq miBoulder
Broomfield County76,860$113,1623.6%2,331/sq mi33 sq mi—
Chaffee County20,617$75,2983.1%20/sq mi1,013 sq miSalida
Cheyenne County1,727$63,1772.2%1/sq mi1,778 sq miCheyenne Wells
Clear Creek County9,147$94,0933.3%23/sq mi395 sq miGeorgetown
Conejos County7,521$53,1743.5%6/sq mi1,287 sq miConejos
Costilla County3,628$38,7316.3%3/sq mi1,228 sq miSan Luis
Crowley County5,636$46,9793.6%7/sq mi787 sq miOrdway
Custer County5,534$77,1372.7%7/sq mi739 sq miWestcliffe
Delta County31,746$57,0754.7%28/sq mi1,142 sq miDelta
Denver County716,577$93,5723.8%4,681/sq mi153 sq miDenver
Dolores County2,513$57,7015.0%2/sq mi1,067 sq miDove Creek
Douglas County383,906$144,8073.3%457/sq mi840 sq miCastle Rock
Eagle County54,381$110,5984.6%32/sq mi1,684 sq miEagle
El Paso County744,215$88,7943.8%350/sq mi2,126 sq miColorado Springs
Elbert County28,806$123,0833.2%16/sq mi1,851 sq miKiowa
Fremont County50,318$61,0154.6%33/sq mi1,534 sq miCañon City
Garfield County62,707$94,6963.2%21/sq mi2,947 sq miGlenwood Springs
Gilpin County5,926$88,5893.0%40/sq mi150 sq miCentral City
Grand County15,935$93,2573.3%9/sq mi1,847 sq miHot Sulphur Springs
Gunnison County17,321$79,6583.9%5/sq mi3,239 sq miGunnison
Hinsdale County765$71,5412.8%1/sq mi1,117 sq miLake City
Huerfano County7,055$47,8555.7%4/sq mi1,591 sq miWalsenburg
Jackson County1,309$96,8113.2%1/sq mi1,614 sq miWalden
Jefferson County576,366$102,1463.4%754/sq mi764 sq miGolden
Kiowa County1,384$55,5232.6%1/sq mi1,768 sq miEads
Kit Carson County6,994$55,3042.4%3/sq mi2,161 sq miBurlington
La Plata County56,407$83,5423.2%33/sq mi1,690 sq miDurango
Lake County7,365$86,2154.4%20/sq mi377 sq miLeadville
Larimer County370,771$88,5193.4%143/sq mi2,596 sq miFort Collins
Las Animas County14,348$52,0675.5%3/sq mi4,773 sq miTrinidad
Lincoln County5,480$58,0344.8%2/sq mi2,578 sq miHugo
Logan County20,619$55,4153.1%11/sq mi1,839 sq miSterling
Mesa County159,681$66,3393.6%48/sq mi3,329 sq miGrand Junction
Mineral County944$37,1084.3%1/sq mi876 sq miCity of Creede
Moffat County13,327$73,8754.1%3/sq mi4,743 sq miCraig
Montezuma County26,531$60,8094.3%13/sq mi2,029 sq miCortez
Montrose County44,156$67,1133.6%20/sq mi2,241 sq miMontrose
Morgan County29,524$68,5413.9%23/sq mi1,280 sq miFort Morgan
Otero County18,136$52,1695.1%14/sq mi1,262 sq miLa Junta
Ouray County5,176$92,7603.6%10/sq mi541 sq miOuray
Park County18,117$103,7203.6%8/sq mi2,194 sq miFairplay
Phillips County4,476$59,3672.7%7/sq mi688 sq miHolyoke
Pitkin County16,640$109,2686.6%17/sq mi971 sq miAspen
Prowers County11,751$50,3653.8%7/sq mi1,638 sq miLamar
Pueblo County169,422$63,8015.1%71/sq mi2,387 sq miPueblo
Rio Blanco County6,569$72,0883.4%2/sq mi3,221 sq miMeeker
Rio Grande County11,188$55,5743.6%12/sq mi912 sq miDel Norte
Routt County25,064$112,3774.0%11/sq mi2,362 sq miSteamboat Springs
Saguache County6,688$47,8294.0%2/sq mi3,169 sq miSaguache
San Juan County802$102,6893.1%2/sq mi388 sq miSilverton
San Miguel County7,868$94,9277.1%6/sq mi1,287 sq miTelluride
Sedgwick County2,299$45,9993.0%4/sq mi548 sq miJulesburg
Summit County30,465$105,1354.0%50/sq mi608 sq miBreckenridge
Teller County24,617$88,0893.4%44/sq mi557 sq miCripple Creek
Washington County4,855$54,2553.2%2/sq mi2,518 sq miAkron
Weld County359,442$90,6754.0%90/sq mi3,985 sq miGreeley
Yuma County9,862$61,8702.1%4/sq mi2,364 sq miWray

All 64 counties, sortable by any column — click a heading. A suppressed estimate (coefficient of variation ≥ 0.30) shows a marker, never a guess. County seats are from Wikidata (CC0), each validated to a Census place inside its county; a county with no validated seat is left blank. See the methodology.

Download & print this Colorado map

Map of Colorado's 64 counties — on official U.S. Census boundaries

Free, print-ready maps of Colorado — all 64 counties on official U.S. Census boundaries, no watermark. Public domain (CC0).

  • Full map — counties + major cities: PNG · PDF
  • Blank outline — print & label it yourself: PNG · PDF
  • Counties only — clean labeled reference: PNG · PDF

Colorado maps, coloured by the data

Map of Colorado counties shaded by population — official U.S. Census data
Population Map by County · Census PEP 2023
Map of Colorado counties shaded by median household income — official U.S. Census data
Median Household Income Map by County · Census SAIPE 2023
Map of Colorado counties shaded by unemployment rate — U.S. Bureau of Labor Statistics
Unemployment Rate Map by County · BLS LAUS

Cities in Colorado

Colorado has 273 incorporated cities and towns. The largest is Denver in Denver County with 713,734 residents. Use the search on the map above to find any city and highlight the county it sits in.

DenverDenver County713,734
Colorado SpringsEl Paso County483,099
AuroraArapahoe County390,201
Fort CollinsLarimer County169,705
LakewoodJefferson County156,309
ThorntonAdams County142,878
ArvadaJefferson County122,835
WestminsterJefferson County115,546
PuebloPueblo County111,514
GreeleyWeld County109,421
CentennialArapahoe County107,386
BoulderBoulder County106,274
LongmontBoulder County98,958
LovelandLarimer County77,350
Castle Rock (town)Douglas County76,614
BroomfieldBroomfield County75,110
Grand JunctionMesa County67,027
Commerce CityAdams County64,640
Parker (town)Douglas County60,115
LittletonArapahoe County45,092
BrightonAdams County41,196
NorthglennAdams County37,953
Windsor (town)Weld County35,918
EnglewoodArapahoe County33,774
Wheat RidgeJefferson County32,158
Erie (town)Weld County31,927
LafayetteBoulder County30,471
FountainEl Paso County29,327
EvansWeld County22,265
LouisvilleBoulder County20,788
MontroseMontrose County20,703
GoldenJefferson County20,467
DurangoLa Plata County19,257
Johnstown (town)Weld County18,075
Firestone (town)Weld County17,353
Cañon CityFremont County17,098
Frederick (town)Weld County15,893
Greenwood VillageArapahoe County15,485
Federal HeightsAdams County14,160
Lone TreeDouglas County14,136
FruitaMesa County13,578
Steamboat SpringsRoutt County13,341
SterlingLogan County13,273
Superior (town)Boulder County13,136
Castle PinesDouglas County12,573
Berthoud (town)Weld County11,684
Wellington (town)Larimer County11,538
Fort MorganMorgan County11,521
Monument (town)El Paso County11,035
RifleGarfield County10,466

Showing the 50 most populous — and 223 more. Search the map above for any Colorado city or village.

A city can span more than one county; each is listed in its primary county — the one its center falls in.

Which Colorado county is the richest, largest, most crowded? The answers

  • Colorado’s highest median household income is in Douglas County ($144,807); the lowest is in Mineral County ($37,108). Census SAIPE 2023
  • Colorado’s most populous county is El Paso County (744,215); the least populous is Hinsdale County (765) — a 973× spread. Census PEP 2023
  • Colorado’s largest county by land area is Las Animas County (4,773 sq mi); the smallest is Broomfield County (33 sq mi). Census TIGER
  • Colorado’s highest population density is in Denver County (4,681/sq mi); the lowest is in Hinsdale County (1/sq mi). Census PEP 2023 · TIGER
  • Colorado’s highest poverty rate is in Crowley County (37.5%); the lowest is in Douglas County (3.7%). Census SAIPE 2023
  • In Colorado, unemployment is highest in San Miguel County (7.1%) and lowest in Yuma County (2.1%), for May 2026. BLS LAUS
  • Colorado’s highest median age is in Custer County (58.6); the lowest is in Alamosa County (33.1). Census ACS 2019–2023
  • Colorado’s highest share of bachelor’s degrees is in San Miguel County (65.2% of adults); the lowest is in Crowley County (12.7%). Census ACS 2019–2023

Every figure is a current official estimate from the source named — not a crowd-sourced or copied value. Suppressed estimates (coefficient of variation ≥ 0.30) are omitted, never guessed. See the full methodology.

Colorado counties: common questions

How many counties are in Colorado?

Colorado has 64 counties covering 103,637 sq mi and about 5.9M residents. Every one is on the map above and in the table below.

What is the largest county in Colorado?

It depends on the measure. By land area it’s Las Animas County (4,773 sq mi); by population it’s El Paso County (744,215 residents).

What county is Denver in?

Denver (population 713,734) is in Denver County. Use the search on the map to find any Colorado city’s county.

What is the richest county in Colorado?

By median household income, Douglas County is the richest at $144,807; the poorest is Mineral County at $37,108 (Census SAIPE 2023).

What is the most populous county in Colorado?

El Paso County, with 744,215 residents — about 12.7% of Colorado’s people, and 973× the least populous, Hinsdale County (765).

Sources & vintages

  • Population — PEP Vintage 2023 (July 1, 2023) — pep/charv
  • Median household income & poverty — SAIPE 2023
  • Unemployment — BLS LAUS May 2026 (preliminary)
  • Geometry & boundaries — Census TIGERweb
  • Cities & city population — Census TIGERweb Incorporated Places + ACS 5-year 2019–2023

Data current through .