Jefferson County, Colorado Genealogy

Guide to Jefferson County, Colorado ancestry, genealogy and family history, birth records, marriage records, death records, census records, family history, and military records.

Description
The County was named for Thomas Jefferson. The County is located in the north central area of the state.

County Courthouse
Jefferson County Courthouse 100 Jefferson County Pkwy #2530 Golden, CO 80419-2530 Phone: 303-271-8168 Jefferson County website Jefferson County Vital Records 800 Jefferson County Parkway Golden, CO 80419 303-271-6450 Fax 303-271-6451 Jefferson Co. website Has Birth and Death Certificates County Clerk has marriage records from 1868 and land records from 1860; County Health Department has birth, death and burial records; Clerk District Court has divorce records; County Court has probate and court records

Populated Places
For a complete list of populated places, including small neighborhoods and suburbs, visit Hometown Locator. The following are the most historically and genealogically relevant populated places in this county:

History Timeline
A chronological history timeline for Jefferson County can be found on the county website.

State and Territory Census Records

 * 1860 - at FamilySearch Historical Records — index and images; Colorado was included in the 1860 Kansas, Nebraska, New Mexico, and Utah Territories Censuses - How to Use this Collection
 * 1870 - at FamilySearch Historical Records — index and images; Colorado Territory Census - How to Use this Collection
 * 1885 - Colorado State Census, 1885 at FamilySearch - Index and images
 * 1885 - Colorado State Census, 1885 at Ancestry - ($), Index and images

Federal Census Records
The 1880 Census was the first Federal Census for Colorado after it became a state in 1876. For links to Federal Census indexes, see Colorado Census.
 * 1860-1940 Colorado Census Records from 1860 to 1940 at FamilySearch.org — index/images

Church Records
Online Church Records
 * 1692-1942 - at FamilySearch — index - How to Use this Collection

Presbyterian Church List of Churches and Church Parishes
 * 1743-1970 - U.S., Presbyterian Records, 1743-1970 at Ancestry — ($); Index and images; Dates vary for each county
 * FamilySearch Places

Court Records

 * 1864-1886 Jefferson County Civil Cases at Colorado State Archives - index, select record type for search

Directories
Online Directories
 * 1932-1933 - U.S. City Directories, 1822-1995 at Ancestry - ($), Index and images, Jefferson County Directories

Land and Property Records
Online Land Records

For more information see Colorado Land and Property
 * Colorado DPA Land Records - Index only; Choose Record Type, and search either "Land Patents" or "Land Records."
 * Land Patent Search - index to federal patents and homesteads on the Bureau of Land Management website, some images available
 * 1796-1907 - U.S. General Land Office Records, 1796-1907 at Ancestry - index, info taken from Bureau of Land Management website
 * 1863-1908 - U.S. Homestead Records 1863-1908 at Ancestry.com - ($), index and images
 * 1862-1908 - Denver Land Office Records, 1862-1908 at Ancestry.com - ($), index only

Local Histories
Online County Histories
 * History of Clear Creek and Boulder Valley, Colorado. 1880. By Sanford Charles Gladden.  Chicago, Illinois : O.L. Baskin. Online at: FamilySearch Digital Library, Hathitrust, Internet Archive;.

Maps and Gazetteers

 * Interactive Formation Boundary Map of Colorado - shows boundary changes for Colorado Counties
 * Colorado Historical Boundary Changes - list of all boundary changes by county provided by Newberry Library
 * FamilySearch Places:Cities and Towns- How to Use FS Places

Online Collections
These collections are unique to Colorado. You will find nationwide databases for military records on U.S. Military Online Genealogy Records and Colorado Military Records.

All Veterans
 * Colorado State Archives Veterans Grave Registration Index at the Colorado State Archives website - Index only; In the Record Type field, select, Military - Grave

Civil War
 * Colorado Civil War Casualties Index at the Colorado State Archives website - Index only; In the Record Type field, select, Civil War Casualty
 * 1861-1865 - Colorado State Archives Volunteers Transcript of Record Index (1861-1865) at the Colorado State Archives website - Index only; In the Record Type field, select, Transcript of Record

Spanish-American War (1898)
 * 1898 - Colorado Volunteers in the Spanish American War, 1898 - at the Colorado State Archives website - Index only; In the Record Type field, select, Span-Am War Soldiers

World War I
 * 1916-1919 - Colorado State Archives Denver War Risk Insurance Applicants, 1916-1919 - at the Colorado State Archives website - Index only; In the Record Type field, select, War Risk Insurance
 * 1917-1922 - Colorado State Archives World War I Civilian Service Questionnaires, 1917-1922 - at the Colorado State Archives website - Index only; In the Record Type field, select, WWI Questionnaire
 * 1917-1918 - Colorado Soldiers in WWI, 1917-1918 at Ancestry.com — ($), index

World War II
 * 1940-1945 - at FamilySearch — index and images - How to Use this Collection

Vietnam War
 * 1966 & 1968 - Colorado State Archives Vietnam War Casualties - June-December 1966 & January-December 1968 - at the Colorado State Archives website - Index only; In the Record Type field, select, Vietnam Deaths

For further information see Colorado Military Records.

Naturalization and Citizenship
Online Records
 * 1868-1990 - Colorado, State and Federal Naturalization Records, 1868-1990 at Ancestry ($); Index and images
 * 1876-1990 - at FamilySearch — index and images; District Court records - How to Use this Collection

Newspapers
Colorado Newspapers Online
 * Colorado Online Historical Newspapers online - in the Colorado Historic Newspaper Collection by the Colorado State Library
 * Colorado Newspapers at Ancestry.com - ($)
 * GenealogyBank - ($), contains images of Colorado newspapers
 * Newspaper Archive - ($), contains images of Colorado newspapers
 * Chronicling America - contains images of some Colorado newspapers; searching tips
 * Elephind - Free; search engine that retrieves newspaper images from other free newspaper websites

Colorado Newspaper Catalogs
 * U.S. Newspaper Directory, 1690-Present on Chronicling America - contains a list of all known newspapers and the dates they cover; once you locate a newspaper name, contact the local library to see if they have copies of the newspaper


 * 1800s-1999 U.S., Newspapers.com Marriage Index, 1800s-1999 at Ancestry - index ($)

Other Records
 Coroner
 * 1868-1930 Jefferson County Coroner Reports at Colorado State Archives - index, select record type for search

Probate Records
Online Records
 * 1862-1977 Jefferson County Probates at Colorado State Archives - index, select record type for search
 * 1875–1974 Colorado Wills and Probate Records 1875-1974 at Ancestry.com — index and images $

Social Security Records

 * 1935-2014 at FamilySearch - How to use this collection; index. Also at Ancestry, findmypast, Fold3, GenealogyBank, MyHeritage, and Steve Morse. Click here for more information.
 * 1936-2007 U.S., Social Security Applications and Claims Index, 1936-2007 at Ancestry ($) — index, click here for more information.

Tax Records
1913-1945 Jefferson County Inheritance Tax at Colorado State Archives - index, select record type for search

Birth
Birth records may become public records when 100 years have elapsed after the date of birth. EXCEPTION: The birth record of any individual who is known to be currently alive will remain confidential even if they are 100 years of age or greater.

For in-state births from 1903 to present, certificates can be obtained from Jefferson County Vital Statistics office. For birth certificates before 1903 contact the county where the birth occurred or the State Health Department at (303) 756-4464.

If you are obtaining a birth certificate for a sibling, parent, grandparent, etc., you will need to show chain of relationship. Examples are: A sibling could provide their birth certificate to show same parents. If you are trying to get a grandparent's birth certificate you will need to show your birth certificate, plus your parent's birth certificate to show chain of relationship. If you have questions on this please call our office at 303-271-6450.

Marriage
The Jefferson County Recorder's office will search their indexes if you call or come in to the office. If a record is found, a copy can be purchased in person or by mail. Call 303-271-8121.

Online Records
 * 1784-2007 - Colorado, United States Marriages at FindMyPast — index $
 * 1809-2011 - Western States Marriage Index, 1809-2011 - Index, incomplete, list of counties included
 * 1853-2006 - at FamilySearch.org - Index and images - How to Use this Collection
 * 1862-2006 - Colorado, County Marriages and State Indexes, 1862-2006 at Ancestry ($), Index and images
 * 1864-1995 - at FamilySearch - Index and images - How to Use this Collection
 * 1900-1939 - Colorado, Statewide Marriage Index, 1900-1939 at Ancestry.com - ($); Browseable images of original index
 * 1975 - 2004 Colorado, Marriages, 1975 - 2004 at MyHeritage - index and images ($)

Death
Death records may become public records when 75 years have elapsed after the date of death.

Certificates can be obtained from the Jefferson County Vital Statistics office.To obtain a recent death certificate, you must show a direct and tangible interest to the deceased. Relatives include wife, mother, father, child (if they are listed on the death certificate). If they are not listed on the death certificate they must show proof of relationship. This would include maternal grandparents, paternal grandparents, siblings if they can prove chain of relationship. If you have questions on this please call our office at 303-271-6450.

Divorce
All divorces and divorce records are handled by the Jefferson County Combined Courts, Colorado Judicial District 1. Please contact their office directly at 303-271-6145 or Fax: 303-271-6188.

Jefferson County Combined Courts 100 Jefferson County Parkway Golden CO 80401

Online Records
 * 1851-1985 Colorado, Divorce Index, 1851-1985 at Ancestry - ($); Index only
 * 1878 - 2004 Colorado, Divorces, 1878 - 2004 at MyHeritage - index ($)
 * 1900-1939 - at FamilySearch - Browseable images of original index - How to Use this Collection

Archives
1862-1977 Jefferson County Probates 1864-1886 Jefferson County Civil Cases 1868-1930 Jefferson County Coroner Reports 1913-1945 Jefferson County Inheritance

Family History Centers

 * Arvada Colorado Family History Center
 * Columbine Colorado Family History Center (Littleton)
 * Front Range Colorado Family History Center (Lakewood)

Libraries
Jefferson County Public Library 10200 W 20th Ave Lakewood, CO 80215 Phone: (303) 235-5275 Jefferson Co. Public Lib. website

Societies
List of all societies for Jefferson County can be found on their County website.

Foothills Genealogical Society of Colorado, Inc. PO Box 150382 Lakewood, CO 80215-0382 Telephone: 303-935-9192 E-mail: [mailto:foothillsgensoc@yahoo.com foothillsgensoc@yahoo.com] website

Golden Landmarks Association 14th and Washington St. PO Box 1136 Golden, Colorado 80402-1136 Telephone: 303-279-1236 website

Websites

 * - The FamilySearch catalog contains descriptions and access information for all genealogical materials (including books, online materials, microfilm, microfiche, and publications) in their collection.  Use Historical Records to search for specific individuals in genealogical records
 * Jefferson County, Colorado Genealogy and Family History (Linkpendium)