Statehood: Aug. 1, 1876 Living in CO Today Population
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Adams Co. Alamosa Co. Arapahoe Co. Archuleta Co. Baca Co. Bent Co. Boulder Co. Chaffee Co. Cheyenne Co. Clear Creek Co. Conejos Co. Costilla Co. Crowley Co. Custer Co. Delta Co. Denver Co. Dolores Co. Douglas Co. Eagle Co. El Paso Co. Elbert Co. Fremont Co. Garfield Co. Gilpin Co. Grand Co. Gunnison Co. Hinsdale Co. Huerfano Co. Jackson Co. Jefferson Co. Kiowa Co. Kit Carson Co. La Plata Co. Lake Co. Larimer Co. Las Animas Co. Lincoln Co. Logan Co. Mesa Co. Mineral Co. Moffat Co. Montezuma Co. Montrose Co. Morgan Co. Otero Co. Ouray Co. Park Co. Phillips Co. Pitkin Co. Prowers Co. Pueblo Co. Rio Blanco Co. Rio Grande Co. Routt Co. Saguache Co. San Juan Co. San Miguel Co. Sedgwick Co. Summit Co. Teller Co. Washington Co. Weld Co. Yuma Co.
Census Statistics
Many people begin their genealogy research starting with the widely available U.S. census records. The U.S. began taking a census every 10 years starting in 1790. The records from 1790 to 1840 contain only the name of the head of the household and limited information about the other individuals in the residence. That changed in 1850 when the census began listing each member of the household individually.
Look how Colorado has grown! The following table details the population of the state from it's first census through 1940. The 1940 census is the last year currently available for genealogy use. The 1950 census won't be available until 2022. Information is shown for 1890, but that census was mostly lost due to a fire and mishandling in the 1920's and 1930's.
If the population figure below is underlined click on it to be taken to a free online version of the census
1790 NO 1800 NO 1810 NO 1820 NO 1830 NO 1840 NO 1850 NO 1860 34,277
1870 39,864 1880 194,327 1890 413,249 1900 539,700 1910 799,024 1920 939,629 1930 1,035,791 1940 1,123,296

Helpful Links
This is where you get to help out you're fellow researchers!
If you know of a great Colorado genealogy site, click below to send us an email with the url.
Please provide a short description of whats on the site. We'll post it in the list below.
The links below are provided by your fellow researchers. They're ones they've found to be useful.
Searchable Database
LDS Searchable Database
LDS Searchable Database
Official State of Colorado Site
Click here to send an email with a new link.  Don't forget a description!

If you know of a really useful non State or County specific website, click below to send us an email with the url.
Please provide a short description of whats on the site. We'll post it in the list below.
Interactive Research Tool
Searchable Passenger Database
Grave Registration and Search Website
New Link Click the link to the left to send us a new website url

If you still have family living in Colorado today, they may live in one of the larger cities of: Aurora, Colorado Springs, Denver, Ft. Collins, Lakewood or Thornton. Chances are their ancestors came from Germany, Switzerland, Austria or Ireland. Their religion is likely one of the Christian denominations.

They may work at one of the companies based in Colorado, like Ball Corp., Echostar, First Data, Liberty Global or Liberty Media. Some of them may enjoy eating rocky mountain oysters or buffalo burgers. They probably root for the Colorado Rockies, Denver Broncos or Nuggets or the Buffaloes. You might find them skiing or horseback riding.

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email Updated 9/14/2015
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