Difference between revisions of "Boulder County, Colorado Genealogy"

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=== Maps  ===
=== Maps  ===
Boulder county has numerous maps available online here:<br>
=== Military  ===
=== Military  ===

Revision as of 05:09, 25 February 2014

Guide to  Boulder County, Colorado genealogy. Birth records, marriage records, death records, census records, family history, and military records.

United StatesGotoarrow.pngColoradoGotoarrow.pngBoulder County

File:Boulder Pano from Fairview HS
Hand and keyboard.jpg Colorado
Online Records

Boulder County, Colorado
Map of Colorado highlighting Boulder 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 Boulder
Address Boulder County Courthouse
2020 13th st
PO Box 471
Boulder, CO 80302
Phone 303.441.7770
Boulder County Website

County Recorder

County recorder has marriage records from 1863, land records from 1864 and military discharge records from 1917; County Health Department has birth and death records records from 1872. County Court has probate, divorce and court records.[1]

Boulder Clerk Recorder's Office
1750 33rd Street, Suite 201
Boulder, CO 80301            303-413-7770


Boulder County, Colorado was organized when the Colorado territory was formed. Prior to that, the area was Jackson county in the unrecognized territory of Jefferson that existed from October 24, 1859 until the creation of the Colorado Territory on February 28, 1861 The early settlers mostly came for the Colorado gold rush in 1858.

Parent County

1 November 1861: Boulder County was created 1 November 1861 as an original county.  County seat: Boulder

Neighboring Counties

Record Loss

Places / Localities

Populated Places

Populated Places in Boulder County
Erie *
Coal Creek **
Eldora Springs

Superior ***
Gold Hill

Gunbarrel #

Hygiene # #

Niwot # #

Valmont #

* partly in Weld County
** partly in Gilpin County and Jefferson County
*** partly in Jefferson County
# also check for records in Boulder
# # also check for records in Longmont

Unpopulated Places

Caribou, Colorado was an important silver mining town. Famed at the time for being the coldest, snowiest, windiest town, at 10,000 feet elevation it was not an easy place to live. The Silver Crash of 1893 meant that it was less profitable. Incorporated as a town in 1871, Caribou had peak population of 549 in the 1880 census, and became a ghost town by the 1920s. [2]

Many mining communities have formed and disbanded in this area, including Wall Street, Tungsten, Summerville, Rowena, Marshall and Magnolia. [3]



Columbia Cemetery, 1201 9th Street, Boulder, CO 80302
(also called Pioneer, Masonic, City, Park, Boulder, and Old Cemetery)

Green Mountain Cemetery, 290 20th Street, Boulder CO 80302
303 444-5695


The first U.S. federal census that included the Boulder county area was part of the 1860 Nebraska territorial census. Transcribed records from that census are available here:


U. S. federal census records began for Colorado in 1870 and continue every ten years to the present.

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

Church Records

Church records vary significantly depending on the denomination and the record keeper. They may contain information about members of the congregation, such as age, date of baptism, christening, or birth; marriage information and maiden names; and death date. For general information about Colorado denominations, view the Colorado Church Records wiki page.


  • Records of the American Lutheran Church, Broomfield, in Evangelical Lutheran Church in America database at Archives.com ($).

Court Records

Boulder County Mothers' Compensation Records 1914-1934.  An Index compiled from the offical record of the applications granted by the Boulder County Commissioners during these years.  Record may show the following:

  • Name of Applicant
  • Date and Amount of Compensation payment
  • Any adjustments to the pension
  • Person's age
  • Town nearest to where they lived
  • Other Actions done by the County.

Boulder County Old Age Pension Records 1933-1936. An Index compiled from the offcial record of the applications granted by the Boulder County Commissioners during these years. Record may show the following:

  • Name of Applicant
  • Date and Amount of pension payment
  • Any adjustments to the pension
  • Person's age
  • Town nearest to where they lived
  • Other Actions done by the County

Local History

Template:CO History Intro

Land and Property

Land and property records can place an ancestor in a particular location, provide economic information, and reveal family relationships. Land records include: deeds, abstracts and indexes, mortgages, leases, grants and land patents.

See Colorado Land and Property for additional information about early Colorado land grants.

After land was transferred to private ownership, subsequent transactions were usually recorded at the county courthouse, where current records are also housed.


Boulder county has numerous maps available online here:




Online Newspapers

Additional newspapers abstracts can sometimes be found using search phrases such as Boulder County, Colorado Genealogy newspapers in online catalogs like:



Probate records have been kept by the county courts. Colorado probate records include bonds, affidavits, letters, claims, appraisals, fee accounts, minutes, judgments, dockets, calendars, case files, and wills. The Family History Library does not have copies of probate records from Colorado.

You may obtain copies of documents from the clerk's office in the county courthouse.


Colorado tax records complement land records and can be used as supplements to censuses. There may be gaps of several years in the records. To find tax records in the FamilySearch Catalog, do a Place Search for the county.

Boulder County Inheritance Tax Records Index (1941-1943) is one of many On-Line Indexes available at the Colorado State Archives website.

Vital Records

Beginning dates for major county records
1880 - 1909 *
1863 *
1880 - 1903*
1864 **

*For earlier dates, try... Church | Obituaries | Cemeteries

    • Estate Files from 1862 are in the Colorado State Archives

Vital Records consist of births, adoptions, marriages, divorces, and deaths recorded on registers, certificates, and documents. A copy or an extract of most original records can be purchased from the Vital Records Section Colorado Department of Public Health and Environment or the County Clerk's office of the county where the event occurred.

For some online statewide indexes, see the FamilySearch Historical Record Collections for Colorado.

Colorado Vital Records Search


The Colorado State Archives has put a name only index to the Boulder County Divorce Records for the period 5/14/1904 to 4/22/1912 on-line.

Societies and Libraries




  • Boulder Public Library
    1000 Canyon Blvd
    Boulder, CO 80302
    Phone: (303) 441-3100

Family History Centers



  1. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Boulder County, Colorado. Page 97At various libraries (WorldCat); FHL Book 973 D27e 2002.
  2. Noel, Thomas J. and Dan W. Corson. Boulder County, An Illustrated History.; Carlsbad, California; Heritage Media Corporation: 1999. pp 63-65.
  3. Bright, William. Colorado Place Names;. Boulder, Colorado; Johnson Printing Company: 2004, 1993.
  4. 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 Colorado Online Historical Newspapers, https://sites.google.com/site/onlinenewspapersite/Home/usa/co, accessed 19 July 2013.