This is the Colorado State Archives official website. Under the Menu icon you can select “Archives Search” to search online records at the Colorado State Archives Historical Records Index Search.  This will search their database by name, record type, and time span. They have instructions for helping make searches more successful. They also have many records that are not currently online.





Birth Marriage and Death records #OnGenealogy

Colorado State Archives Birth, Marriage, and Death Records


Colorado Birth Records

Boulder County Birth Index 1892-1906 

Denver Birth Index 1875-1909 

Elbert County Birth Index 1869-1906 

Kit Carson County Birth Report Register 1892-1907

Lake County Births to 1909 

Ouray County Births 1891-1902 



Colorado Marriage and Divorce Records

Divorce Index (Statewide) 1880-1939 

Adams County Divorces 1904-1913 

Bent County Divorce 1907-1921 

Boulder County Divorce 1904-1918 

Conejos County Divorces 1899-1915 

Elbert County Divorce 1870-1910 

El Paso County Divorce 1903-1941

Garfield County Divorce Record 1906-1916 

Park County Divorce Record 1957-1974 

Pitkin County Divorce Record 1931-1964 

Gilpin County Marriages 1864-1944 

Mesa County Divorce Cases 1950-1970




Colorado Death Records

Denver Death Index 1870-1909 

Kit Carson County Death Register 1893-1907 

Rio Blanco Burial Permits & Removals 1917-1951 

Saguache County Burial Records 1923-1925 




Colorado Wills and Probate Records

Adams County Wills 1903-1938 

Arapahoe County Probate Cases 1902-1937 

Boulder County Probates 1862-1900 

Chaffee County Probates 1878-1979 

Clear Creek County Wills 1950-1964 

Clear Creek County Will Record 1881-1947 

Conejos County Probate Cases 1894-1918 

Costilla County Probate Record 1876-1914 

Custer County Probates 1879-1989 

Douglas County Probate Cases 1865-1962 

Douglas County Wills 1886-1961 

Eagle County Probate 1884-1935

Elbert County 8th Grade Promotions 1918-1930 Elbert County Wills 1887-1966 

Elbert County 8th Grade Promotions 1918-1930 Elbert County Wills 1887-1966 

Gilpin County Probate Court Civil Case Filings 1874-1892 Gilpin County Inheritance Tax 1910-1922 

Jefferson County Probates 1862-1977 

Lincoln County Probate Cases 1890-1981 

Mesa County Probate 1883-1910 

Mineral County Old Age Pension 1935-1936 Mineral County Probate 1894-1970 

Moffat County Inheritance Tax 1920-1943 Montrose County Probate Cases (1883 – 1939) 0

Morgan County Mothers Compensation 1935 Morgan County Old Age Pension 1933-1936 Morgan County Probates 1890-1964 

Ouray County Probate Cases 1878-1919

Park County Will Record 1895-1926 & 1959-1976 

Pitkin County Probate 1881-1953 

Pueblo County Probate Cases 1862-1961 

Rio Grande Probate Cases (1874 – 1921) 

Routt County Will Record 1888-1905 

Summit County Probate Cases/Record 1877-1916 

Teller County Wills 1894-1971

Weld County Probate Cases (1876 – 1981) 






Residence records census land migration voting taxation #OnGenealogy

Colorado State Archives Residence Records

Census Records

1870 Federal Census 



Land Records

Kit Carson County Land Registration Receipts 1913-1939

Pitkin County Quit Claim Deeds (1881-1883) 




Naturalization Records

Clear Creek County Naturalization Records 1867-1906 

Larimer County Naturalization Index 1885-1958

Las Animas County Naturalizations 1878-1906




Pension Records

Adams County Old Age Pension 1933-1936 

Arapahoe County Old Age Pension 1933-1936 

Boulder County Old Age Pension 1933-1936 

Clear Creek County Old Age Pensions 1933-1935 

Denver Old Age Pension 1933-1936 

Douglas County Old Age Pension 1933-1936

Elbert County Old Age Pension 1933-1936 

El Paso County Old Age Pension 1933-1936 

Fremont County Old Age Pensions 1933-1936 

Kit Carson County Old Age Pension 1933-1936 

Larimer County Mothers Compensations 1920-1933

Larimer County Old Age Pensions 1933-1936

Las Animas County Old Age Pensions 1933-1936 

Lincoln County Old Age Pension 1933-1936

Prowers County Old Age Pensions 1933-1936 

San Miguel County Old Age Pension 1934 

Weld County Old Age Pensions 1931 




Poor Records

Costilla County Poor Record 1890-1932 

Huerfano County Poor Records 1916-1923 

Saguache County Poor Records 1915-1926 

Washington County Pauper Record 1896-1897 

Weld County Poor Record 1902-1913 




Tax Records

Adams County Inheritance Tax 1929-1943 

Denver Inheritance Tax 1909-1912 

Boulder County Inheritance Tax Records 1941-1943 

Conejos County Inheritance Tax 1918-19230

Douglas County Inheritance Tax 1911-1944 

Custer County Inheritance Tax 1907-1946 

Fremont County Inheritance Tax 1913-1943 

Garfield County Inheritance Tax 1909-1919, 1926-1942 

Huerfano County Inheritance Tax 1910-1946 

Huerfano County Tax List 1873 

Jefferson County Inheritance Tax 1913-1945 

Logan County Inheritance Tax 1913-1942

Mesa County Inheritance Tax 1920-1934

Pitkin County Inheritance Tax 1938-1956 

Routt County Inheritance Tax 1918-1923 

Teller County Inheritance Tax 1917-1936 




Voter Records

Arapahoe County Voter Registrations 1893-1905 






Daily Life Records school work church court government library social life #OnGenealogy

Colorado State Archives Daily Records


Court Records

Arapahoe County Civil Docket Book 1867-1869 

Court of Appeals Case Files 1891-1911 

Douglas County Justice of the Peace Docket 1871-1892

Denver War Risk Insurance Applications 1914-1917 Dolores County Court Cases 1881-1953 

El Paso County Civil District Court 1946-1961

Elbert County Inheritance Proceedings 1922-1941 Elbert County Judges Docket 1928-1938 

Gilpin County Bankruptcy Docket 1867-1876 

Gilpin County Chancery Cases 1862-1878 

Gilpin County District Court Filings 1861-1882 

Jefferson County Civil Cases 1864-1886 

Lake County Justice of the Peace Cases 1883-1884

Larimer County Water Cases 1899-1926 

Supreme Court Case Files 1861-1933




Ethnic Records

Amache Japanese Internment Camp Teachers List 1942-1945

Indian Industrial Schools Census 1900 




Medical Records

Arapahoe County Hospital 1891-1899 

Arapahoe County Poor Hospital 1895-1899 

Jefferson County Coroner Reports (1868-1930) 




School Records

Adams County Teachers 1913-1935 

Amache Japanese Internment Camp Teachers List 1942-1945

Arapahoe County Teachers Cards Dist 1 & 6 1953 

Chaffee County Teacher Certificate Register 1879-1889 

Clear Creek County School Census 1874 

Costilla County Teacher Exams 1917-1923 

Custer County Teachers Registers of Students 1880-1896 Custer County Wills 1887-1966 

Dearfield and surrounding area School Census 1909-1946 

El Paso County School Census Dist. 3 1911 0

El Paso County School Census Dist.11 (Colo. Spgs.) 1910, 1920 

Huerfano County School Census 1913-1915, 1919

Indian Industrial Schools Census 1900 

Lake County School District #6 1880-1903 

Lake County School District #12 1893-1900 

Lake County School District #15 1952-1958

Leadville School Census 1883-1910 

Logan County School Census 1915-1920 

Park County School Board Oaths 1918-1959 

Pitkin County School Census #16 1896, 1898 

Rio Grande County Teacher Certificate Applications 1874-1893 

Rio Grande School Census #22 1917-1918 

Rocky Ford School Census 1877-1892 

Routt County School Census 1910 

Routt County School Census 1920 

Saguache County Teacher Certificate Registers (Certificates of Like Grade) 1894-1914 

San Miguel Teacher Exams 1885-1906 

Teacher Experience Cards 1899-1958




Prisons, Prisoners, Arrests

Prohibition Arrests 1918-1926 

Penitentiary Index, State 1871-1973

Reformatory Index, State 1887-1939




Uncategorized collections

Boulder County Mothers 1914-1934 

Boulder County Rights of Way Cases 1871-1872 

Denver Lot and Block Index 1862-1917 

La Plata County WPA Enrollments 1935-1942 

Mesa County CCC Enrollments 1934-1942

Mesa County Motor Vehicle Licenses 1913-1917

Routt County Ditch Claim Statements 1902-1903 

Miscellaneous records 

Bar Admission Files 1899-1950 

Civilian Conservation Corps Enrollments (Statewide) 1936-1942 Civil War Casualties 

Governor’s Appointments 1861-1981 

Horse (Docked) Register 1899-1907 

Horseshoers 1897-1920 

Horticulture Awards 1894-1899 

Incorporation Index 1861-1914 

Land Commissioners Patents 1878-1970 

Mine Accidents, Non-fatal 1883-1900 

Mine Location Certificates 1905-1910 

Trademarks 1877-1903 




Military records Wars Veterans #OnGenealogy

Colorado State Archives Military Records



Transcript of Records 1861-1865

Mesa County Persons Subject to Military 1885-1887

Mesa County Persons Exempt from Military 1887

Spanish-American War Volunteers 1898-1899

World War I Civilian Service Questionnaires

Weld County WW1 Vets 

Vietnam Deaths 1966, 1968 


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