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Boulder County Government records

Identifier: COU:175


  • 1906 - 1970

Biographical / Historical

This county is situated to the Northwest of Denver and the western border is the continental divide. The territory within Boulder County first became part of the United States in 1803 with the Louisiana Purchase. The first record of modern settlement in Boulder County dates from March 1859 where reference is made in a letter to the laying out of the City of Boulder. In 1861 the Colorado Territory was created with Boulder being one of the 17 counties represented in the first Territorial Assembly.

The area was quickly populated by gold and coal miners and some farmers looking to make a living on the rich land that makes up boulder. The western mountains provided sources of gold and coal and other mining opportunities while the rolling flatlands in the east were good farm lands. Today Boulder County has grown and it is estimated that the population of the county is 294,000, 103,100 of which reside in the City of Boulder, 130089 spread throughout Longmont, Lafayette, and Louisville, and the remainder dispersed throughout the other towns included in Boulder County.

The cornerstone of the Boulder County Courthouse was laid on July 4, 1882 and marked the town square as well as the meeting place for commissioners and other government officials. The Courthouse however burned down in 1932 and many of the County’s historical records were lost. A new courthouse was built and dedicated in 1934, however it was impossible to reclaim all the lost documents that were in the first courthouse. Today Boulder County has expanded and now has several courthouses and other Governmental complexes that serve the people residing within Boulder County.


1.5 linear feet (1 Box)

Language of Materials



This collection contains government information for Boulder County. It includes Statement of the Treasurer, and information on various school districts as well as Memorandums by the County Superintendent. This is a general and loosely put together collection probably coming from scattered material that was received in the 1970s.


This collection is arranged into the following series: I. Taxes and Regulations (1907-1984) II. Zoning and Regional Planning (1964-1965) III. Education (1941-1972)
Re-housed and Processed by: Genesis Machek, 2009
April 7, 2009
Description rules
Describing Archives: A Content Standard
Language of description
Script of description

Repository Details

Part of the University of Colorado Boulder Libraries, Special Collections & Archives Repository

1720 Pleasant Street
184 UCB
Boulder Colorado 80503 United States