Jefferson County, Colorado Genealogy

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United StatesGotoarrow.pngColoradoGotoarrow.pngJefferson County

Hand and keyboard.jpg Colorado
Online Records

Jefferson County, Colorado
Map of Colorado highlighting Jefferson County
Location in the state of Colorado
Map of the U.S. highlighting Colorado
Location of Colorado in the U.S.
Founded November 1, 1861
County Seat Golden
Address Jefferson County Courthouse
100 Jefferson City Pkwy #2530
Golden, CO 80419-2530
Phone: 303.271.8168
Jefferson County Website

County Courthouse

County Clerk has marriage records 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[1]

Jefferson County, commonly referred to as the Gateway to the Rockies, is the fourth most populated county in Colorado.  The county runs along the west side of the Denver Metro area along the front range.  The county website can be found at


An excellent chronological history is found in the archives section of the county website

Parent County

1861--Jefferson County was created 1 November 1861 as an original county. County seat: Golden [2]

Boundary Changes

Record Loss

Places / Localities

Populated Places

Neighboring Counties



Arvada Cemetery
5581 Independence Street
Arvada, CO 80002-2973
(303) 422-5424

Crown Hill Cemetery, Wheat Ridge BillionGraves

Evergreen Memorial Park

26624 N. Turkey Creek Rd.
Evergreen, Colorado 80439

Golden Cemetery
755 Ulysses St.
Golden, CO 80401

Mailing Address:
Golden Cemetery
755 Ulysses St.
Golden, CO 80401

(303) 279-1435

Golden Hill Cemetery (Jewish)

12000 West Colfax Avenue
Lakewood, CO 80215-3717
(303) 237-0573

Mount Olivet Cemetery
12801 W. 44th Avenue
Wheat Ridge, Colorado 80033

Olinger Crown Hill Mortuary & Cemetery
7777 West 29th Avenue, Wheat Ridge, CO 80033 303-233-4611

Olinger Mt Lindo Cemetery

5928 South Turkey Creek Road
Morrison, CO 80465-9501 - (303) 697-2011

Other private and public cemeteries


For tips on accessing Jefferson County, Colorado Genealogy census records online, see: Colorado Census.

Census Year     Population
1870                 2,390
1880                 6,804
1890                 8,450
1900                 9,360

1910                14,231

1920                14,400

1930                 21,810

1940                30,725

1950                55,687

1960              127,520

1970              235,368

1980              371,753

1990              438,430

2000              527,156

Source:  Jefferson County Archives




Local Histories






Colorado State Archives has put the Jefferson County Inheritance Tax Records Index for 1913-1945 on-line

Vital Records

Colorado Vital Records Search

Societies and Libraries

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

Jefferson County Historical Societies
For a listing of currently known Historical Societies in the County see

Foothills Genealogical Society of Colorado, Inc.
P.O. Box 150382
Lakewood, CO 80215-0382
Telephone: 303-935-9192

Golden Landmarks Association
14th & Washington St.
P.O. Box 1136
Golden, Colorado 80402-1136
Telephone: 303-279-1236

Family History Center

Web Sites


  1. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Jefferson County, Colorado. Page 99 At various libraries (WorldCat); FHL Book 973 D27e 2002.
  2. The Handybook for Genealogists: United States of America,10th ed. (Draper, UT:Everton Publishers, 2002).