Colorado Genealogy, Family Trees and Family History Records online
Colorado genealogy search, look up ancestors, browse CO archived records, history, census information and more online
State Archives & Libraries
State archives, libraries, and official repositories are the best starting point for manuscripts, local histories, newspapers, and curated research guides.
- Colorado State Archives Historical Records IndexStart your search using the records description list or indexed database that is searchable by name, record type or by time span
- Colorado Marriage and Divorce DatabaseResearch historical state archives of marriage records and certificates and county divorce records online
- Colorado State Archives and Libraries SearchAccess for genealogists and family historians to research resources and search birth, death and marriage records
- Colorado Archives Military Online DatabaseCivil War, New Mexico Campaign, Spanish American War, grave registration, World War II enlistments, Vietnam War casualties and World War I civilian...
- Colorado State Archives Court and Judicial RecordsRepository for case files from the State Supreme Court, Court of Appeals, county and county district courts
- Colorado Probate Court Indexes from State ArchivesFind historical probate files, wills and tax records by county
- Colorado State Archives Family History PageSearch the vast historical records database by name, county, time span or record type
- Colorado State Penitentiary Prisoner IndexDownload archived files from 1871 to 1973 of penitentiary and reformatory records
- Colorado Virtual LibrarySearch the digital collections for your family heritage, including the western history and genealogy photo collection
Census & Historical Collections
Census indexes, historical collections, and broad research databases can help you place individuals in time and location before requesting deeper records.
- Colorado Online School ArchivesIndex of county teacher certificates, census and grade promotions historical records for public access
- National Archives Colorado Rocky Mountain RegionResearch family history including federal population censuses, Revolutionary War records, pension and bounty land warrants, Indian censuses and state.
Vital Records & Family History
Birth, death, marriage, divorce, adoption, cemetery, and family-history resources that support lineage and family-tree research.
- Colorado Department of Public Health and EnvironmentCertificates and vital records available to find early birth, death, marriage and dissolution records for genealogy investigations
Societies, GenWeb & Community Projects
Genealogical societies, volunteer projects, surname forums, and local organizations often provide finding aids and specialized local knowledge.
- Colorado Historic Newspapers CollectionReview feature stories, society news, classified and picture advertisements, school and church announcements, news from surrounding towns, editorials
- USGenWeb Archives ColoradoUse the CO GenWeb project to research census transcriptions, family ancestors, courthouses, gravestones, military, civilian conservation corps and...
Related Colorado Search Topics
- Colorado Public Records HubReturn to the main Colorado public-record directory and browse more official record categories.
- Colorado Vital RecordsBirth, death, marriage, and divorce record guidance for Colorado.
- Colorado Background ChecksBackground-check and identity-research resources for Colorado.
- Colorado Court RecordsCourt, probate, and case-search resources relevant to family-history research.
- Military RecordsNational military and service-record research tools that can support family-history projects.