Maps of Colorado are an invaluable area of ancestral and family history research, particularly if you live far away from where your ancestor resided.
Since Colorado’s political boundaries have often changed over the years, historic maps are important when it comes to helping you find out the exact location of your ancestor’s hometown, just what land they owned, who their neighbors happened to be, and a lot more besides.
Maps of Colorado are an excellent resource for getting started with your own research as they provide reliable information and facts right away and present them in a clear and easily understandable format.
Colorado borders Arizona, Kansas, Nebraska, New Mexico, Oklahoma, Utah, and Wyoming. Colorado’s 10 largest cities are Denver, Colorado Springs, Aurora, Fort Collins, Lakewood, Thornton, Westminster, Arvada, Pueblo, and Centennial.
Learn more historical facts about Colorado counties here.
Interactive Map of Colorado County Formation History
AniMap Plus 3.0, with the permission of the Goldbug Company
List of Every Colorado County
Adams County
Established in 1901, Adams County is located in the north-central part of the state with a population of over 520,000 people as of 2020. It is home to a variety of urban, suburban, and rural areas.
Alamosa County
Established in 1913, Alamosa County is located in the southern part of the state and has a population of just over 16,000 people as of 2020. It is known for its scenic beauty and outdoor recreation opportunities.
Arapahoe County
Established in 1903, Arapahoe County is located in the eastern part of the state and has a population of over 657,000 people as of 2020. It is home to a diverse range of communities and has a thriving economy.
Archuleta County
Established in 1885, Archuleta County is located in the southwestern part of the state and has a population of just over 14,000 people as of 2020. It is known for its natural beauty and outdoor recreation opportunities.
Baca County
Established in 1887, Baca County is located in the southeastern part of the state and has a population of just over 3,500 people as of 2020. It is home to a variety of small communities and is known for its agricultural heritage.
Bent County
Established in 1870, Bent County is located in the southeastern part of the state and has a population of just over 5,500 people as of 2020. It is known for its historic sites and outdoor recreation opportunities.
Boulder County
Established in 1861, Boulder County is located in the north-central part of the state and has a population of over 327,000 people as of 2020. It is known for its progressive culture, natural beauty, and outdoor recreation opportunities.
Chaffee County
Established in 1879, Chaffee County is located in the central part of the state and has a population of just over 20,000 people as of 2020. It is known for its scenic beauty and outdoor recreation opportunities.
Cheyenne County
Established in 1889, Cheyenne County is located in the eastern part of the state and has a population of just over 1,800 people as of 2020. It is known for its small communities and agricultural heritage.
Clear Creek County
Established in 1861, Clear Creek County is located in the central part of the state and has a population of just over 9,000 people as of 2020. It is known for its scenic beauty and outdoor recreation opportunities, particularly in its mountainous areas.
Conejos County
Established in 1861, Conejos County is located in the southern part of the state and has a population of just over 8,000 people as of 2020. It is known for its historic sites, natural beauty, and agricultural heritage.
Costilla County
Established in 1861, Costilla County is located in the southern part of the state and has a population of just over 3,500 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and historic sites.
Crowley County
Established in 1911, Crowley County is located in the southeastern part of the state and has a population of just over 2,000 people as of 2020. It is known for its agricultural heritage and small communities.
Custer County
Established in 1877, Custer County is located in the central part of the state and has a population of just over 5,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and historic sites.
Delta County
Established in 1883, Delta County is located in the western part of the state and has a population of over 31,000 people as of 2020. It is known for its agricultural heritage, scenic beauty, and outdoor recreation opportunities.
Denver County
Established in 1901, Denver County is located in the central part of the state and has a population of over 733,000 people as of 2020. It is the state capital and largest city in Colorado, known for its urban culture, thriving economy, and outdoor recreation opportunities.
Dolores County
Established in 1881, Dolores County is located in the southwestern part of the state and has a population of just over 1,800 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and historic sites.
Douglas County
Established in 1861, Douglas County is located in the central part of the state and has a population of over 375,000 people as of 2020. It is known for its suburban and rural communities, thriving economy, and outdoor recreation opportunities.
Eagle County
Established in 1883, Eagle County is located in the central part of the state and has a population of over 55,000 people as of 2020. It is known for its scenic beauty, outdoor recreation opportunities, and thriving tourism industry.
Elbert County
Established in 1874, Elbert County is located in the eastern part of the state and has a population of just over 27,000 people as of 2020. It is known for its rural communities, agricultural heritage, and outdoor recreation opportunities.
El Paso County
Established in 1861, El Paso County is located in the central part of the state and has a population of over 730,000 people as of 2020. It is known for its thriving economy, military presence, and outdoor recreation opportunities.
Fremont County
Established in 1861, Fremont County is located in the central part of the state and has a population of over 48,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and historic sites.
Garfield County
Established in 1883, Garfield County is located in the western part of the state and has a population of over 60,000 people as of 2020. It is known for its scenic beauty, outdoor recreation opportunities, and energy industry.
Gilpin County
Established in 1861, Gilpin County is located in the central part of the state and has a population of just over 6,000 people as of 2020. It is known for its historic sites, natural beauty, and gambling industry.
Grand County
Established in 1874, Grand County is located in the central part of the state and has a population of over 16,000 people as of 2020. It is known for its scenic beauty, outdoor recreation opportunities, and tourism industry.
Gunnison County
Established in 1877, Gunnison County is located in the central part of the state and has a population of over 17,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and thriving arts scene.
Hinsdale County
Established in 1874, Hinsdale County is located in the southwestern part of the state and has a population of just over 800 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and small communities.
Huerfano County
Established in 1861, Huerfano County is located in the southern part of the state and has a population of just over 6,000 people as of 2020. It is known for its historic sites, natural beauty, and agricultural heritage.
Jackson County
Established in 1909, Jackson County is located in the northern part of the state and has a population of just over 1,400 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and small communities.
Jefferson County
Established in 1861, Jefferson County is located in the central part of the state and has a population of over 586,000 people as of 2020. It is known for its suburban and rural communities, thriving economy, and outdoor recreation opportunities.
Kiowa County
Established in 1889, Kiowa County is located in the southeastern part of the state and has a population of just over 1,300 people as of 2020. It is known for its agricultural heritage, natural beauty, and small communities.
Kit Carson County
Established in 1889, Kit Carson County is located in the eastern part of the state and has a population of over 7,000 people as of 2020. It is known for its agricultural heritage, historic sites, and natural beauty.
La Plata County
Established in 1874, La Plata County is located in the southwestern part of the state and has a population of over 60,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and historic sites.
Lake County
Established in 1861, Lake County is located in the central part of the state and has a population of just over 8,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and historic mining towns.
Larimer County
Established in 1861, Larimer County is located in the northern part of the state and has a population of over 357,000 people as of 2020. It is known for its diverse landscapes, outdoor recreation opportunities, and thriving economy.
Las Animas County
Established in 1866, Las Animas County is located in the southeastern part of the state and has a population of over 14,000 people as of 2020. It is known for its agricultural heritage, natural beauty, and historic sites.
Lincoln County
Established in 1889, Lincoln County is located in the eastern part of the state and has a population of over 5,000 people as of 2020. It is known for its agricultural heritage, historic sites, and natural beauty.
Logan County
Established in 1887, Logan County is located in the northeastern part of the state and has a population of over 21,000 people as of 2020. It is known for its agricultural heritage, historic sites, and outdoor recreation opportunities.
Mesa County
Established in 1883, Mesa County is located in the western part of the state and has a population of over 156,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and agricultural industry.
Mineral County
Established in 1893, Mineral County is located in the southwestern part of the state and has a population of just over 700 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and small communities.
Moffat County
Established in 1911, Moffat County is located in the northwestern part of the state and has a population of over 13,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and historic sites.
Montezuma County
Established in 1889, Montezuma County is located in the southwestern part of the state and has a population of over 26,000 people as of 2020. It is known for its archaeological sites, natural beauty, and outdoor recreation opportunities.
Montrose County
Established in 1883, Montrose County is located in the western part of the state and has a population of over 43,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and thriving agriculture and energy industries.
Morgan County
Established in 1889, Morgan County is located in the northeastern part of the state and has a population of over 29,000 people as of 2020. It is known for its agricultural heritage, historic sites, and outdoor recreation opportunities.
Otero County
Established in 1889, Otero County is located in the southeastern part of the state and has a population of over 17,000 people as of 2020. It is known for its agricultural heritage, natural beauty, and historic sites.
Ouray County
Established in 1877, Ouray County is located in the southwestern part of the state and has a population of just over 5,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and historic mining towns.
Park County
Established in 1861, Park County is located in the central part of the state and has a population of over 20,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and historic sites.
Phillips County
Established in 1889, Phillips County is located in the northeastern part of the state and has a population of over 4,000 people as of 2020. It is known for its agricultural heritage, historic sites, and outdoor recreation opportunities.
Pitkin County
Established in 1881, Pitkin County is located in the central part of the state and has a population of over 18,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and affluent ski resort communities.
Prowers County
Established in 1889, Prowers County is located in the southeastern part of the state and has a population of over 11,000 people as of 2020. It is known for its agricultural heritage, natural beauty, and historic sites.
Pueblo County
Established in 1861, Pueblo County is located in the southeastern part of the state and has a population of over 167,000 people as of 2020. It is known for its steel industry, natural beauty, and historic sites.
Rio Blanco County
Established in 1889, Rio Blanco County is located in the northwestern part of the state and has a population of over 6,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and historic sites.
Rio Grande County
Established in 1874, Rio Grande County is located in the southwestern part of the state and has a population of over 11,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and historic sites.
Routt County
Established in 1877, Routt County is located in the northwestern part of the state and has a population of over 25,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and historic sites.
Saguache County
Established in 1866, Saguache County is located in the central part of the state and has a population of over 6,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and historic sites.
San Juan County
Established in 1876, San Juan County is located in the southwestern part of the state and has a population of just over 700 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and historic mining towns.
San Miguel County
Established in 1883, San Miguel County is located in the southwestern part of the state and has a population of over 8,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and affluent ski resort communities.
Sedgwick County
Established in 1889, Sedgwick County is located in the northeastern part of the state and has a population of over 2,000 people as of 2020. It is known for its agricultural heritage, historic sites, and outdoor recreation opportunities.
Summit County
Established in 1861, Summit County is located in the central part of the state and has a population of over 31,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and affluent ski resort communities.
Teller County
Established in 1899, Teller County is located in the central part of the state and has a population of over 25,000 people as of 2020. It is known for its natural beauty, outdoor recreation opportunities, and historic sites.
Washington County
Established in 1887, Washington County is located in the northeastern part of the state and has a population of over 4,000 people as of 2020. It is known for its agricultural heritage, historic sites, and outdoor recreation opportunities.
Weld County
Established in 1861, Weld County is located in the northeastern part of the state and has a population of over 330,000 people as of 2020. It is known for its agricultural heritage, oil and gas production, and outdoor recreation opportunities.
Yuma County
Established in 1889, Yuma County is located in the northeastern part of the state and has a population of over 10,000 people as of 2020. It is known for its agricultural heritage, historic sites, and outdoor recreation opportunities.
Old Antique Atlases & Maps of Colorado
Disclaimer: All Colorado maps are free to use for your own genealogical purposes and may not be reproduced for resale or distribution.
Source: David Rumsey Historical Map Collection
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Map of Colorado – 1866
1866 Map of Public Surveys in Colorado Territory
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Map of Colorado – 1880
1880 Colorado
D.O.T. County Road and Highway Maps of Colorado
To View the Map: Just click the image to view the map online. In order to make the image size as small as possible they were saved on the lowest resolution.
Colorado Map Links
- Colorado State Parks Map (mapofus.org)
- Colorado Lakes and Rivers Map (mapofus.org)
- Colorado Map With Cities and Highways (mapofus.org)
- Colorado Digital Map Library (usgwarchives.net)
- Old Historical Maps of Colorado (alabamamaps.ua.edu)
- Colorado Maps, Atlases & Gazetteers (ancestry.com)
- Colorado Maps – The Perry-Castañeda Library Map Collection (lib.utexas.edu)
- U.S., Indexed County Land Ownership Maps, 1860-1918 (ancestry.com)
- Colorado Atlas of Panoramic Aerial Images
- GeoEye
- Colorado Maps (colorado-mapsite.com)
- Colorado Congressional Districts (nationalatlas.gov)
- Colorado DOT Bicycling Maps coloradodot.info)
- Colorado Dept. of Transportation (coloradodot.info)
- Colorado Judicial Districts
- Colorado Map Books (amazon.com)
