Colorado, county records

Boulder County, Colorado Public Records

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Find the right office in Boulder County. Court cases, deeds and parcels, sheriff and jail records, vital records and county filings, each linked to the office that keeps them.

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Most requested Boulder County records

Every card below goes to the government office responsible for that record. Use the category buttons to narrow the list.

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Showing 12 official sources

Official

Police & jail

Boulder County Criminal Records

Criminal records for Boulder County start with the sheriff's office, which holds the arrest records, the incident and accident reports and the roster of the county jail.

bouldercounty.gov
Open official site Boulder County Criminal Records
Official

Property records

Boulder County Property Tax Information

The Boulder County Treasurer bills and collects the property taxes and keeps the record of what is owed and what has been paid on each parcel in the county.

bouldercounty.gov
Open official site Boulder County Property Tax Information
Official

Police & jail

Boulder County Sex Offenders

Boulder County publishes the registry of sex offenders who have registered with the sheriff and the police departments inside the county.

bouldercounty.org
Open official site Boulder County Sex Offenders
Official

City records

Boulder County Economic Development

Boulder County government business resources: licenses for unincorporated Boulder County, sales tax help, an economic profile of the county and links to each town's economic development agency.

bouldercounty.gov
Open official site Boulder County Economic Development

Everything else, organized

More official Boulder County record sources

8 more Boulder County sources not listed above.

More county sources

Local record guide

About public records in Boulder County

County profile

Boulder County at a glance

State
Colorado
County seat
Boulder
Population
330,758
Area
740 sq mi
Founded
1861
Cities and towns
14

Boulder County offices and records

Sheriff & Law Enforcement. Boulder County Sheriff's Office is responsible for law enforcement in the unincorporated areas of Boulder County.

Police Departments. In addition to Boulder County Sheriff's Office, several municipal police departments operate within Boulder County, including the Boulder Police Department, Longmont Police Department, Lafayette Police Department, and Louisville Police Department. These agencies are responsible for law enforcement within their respective city limits and collaborate with the Sheriff's Office on major investigations and emergency responses.

Law Enforcement & Arrests. Boulder County Sheriff's Office, headquartered at 5600 Flatiron Parkway, Boulder, CO 80301 (phone: 303-441-4444, website: bouldercounty.gov/safety/sheriff), is the primary law enforcement agency for unincorporated areas of Boulder County and operates Boulder County Jail. Inmates housed at Boulder County Jail can be located through the Sheriff's Office website using their online inmate search tool, which provides booking information, charges, bond amounts, and anticipated release dates.

Arrest Records. They are maintained by the arresting agency, primarily the County Sheriff's Office and municipal police departments.

• Phone: (303) 441-4444 Elections in Boulder County are administered by Boulder County Clerk and Recorder's Elections Division, located at 1750 33rd Street, Boulder, CO 80301 (phone: 303-413-7740, website: bouldercounty.gov/elections). 1750 33rd Street, Boulder County, CO 80301 • Phone: 303-413-7770 Vital records for Boulder County, Colorado, are managed by multiple agencies depending on the record type and date. Birth and death certificates that occurred in Boulder County can be requested through Boulder County Public Health office at 3450 Broadway, Boulder, CO 80304 (phone: 303-441-1100). 1325 Pearl Street, Boulder, CO 80302 • Phone: 303-441-3530 Boulder County's court system operates under the Colorado Judicial Branch's 20th Judicial District, with Boulder County Justice Center located at 1777 6th Street, Boulder, CO 80302 (phone: 303-441-3750).

Abandoned mine records

Old mine workings in Boulder County

Where the workings are, and the office that holds the mine maps.

From the old mine records

What is on record in Boulder County

Old mine sites
877
Sites with no status in the records
13
Still producing
121
Main minerals
Gold; Tungsten; Fluorine-Fluorite
Holes drawn on the old survey maps
962
Shafts and tunnels
534
What they are
prospect pit, adit, mine shaft, quarry
Maps surveyed
1942 to 1994
Records behind them
2,159 records for 1,973 sites, the rest are the same working written down more than once
Sources
USGS mineral file and USGS topographic mine features

Is an old working under a property here?

The mine records hold 1,011 named mine sites inside the county, 877 of them worked out or abandoned; the old survey maps add 962 holes drawn inside the county, 534 of them shafts or tunnels. The minerals the records name are Gold; Tungsten; Fluorine-Fluorite.

A point in either file is a location, not a property line: the sheet shows the opening on the surface, not the rooms under it. The record that shows what runs under a parcel is the mine map. The OSMRE National Mine Map Repository holds scanned underground mine maps and answers requests for a named mine or an area. Colorado's cover is a protection program run by DRMS, not an insurance policy sold by insurers.

1 mile 600 of 2,007 shown
Boulder County: the boundary from the Census Bureau, and one dot for each old mine or hole on record inside it. Purple is a shaft or a tunnel. Hover a dot for its name.
Colorado mine map and abandoned mine records
Named workings recorded in Boulder County (293 shown, 714 more named and 869 unnamed on the map)

Rows taken off the old survey maps open the USGS record of what sits at that spot, because no single feature on those maps has a page of its own. Rows from the mine records open their own USGS page.

Disclaimer: The mine information here is for general information only. Old mine records can be incomplete, outdated or wrong, and finding nothing here does not mean there is nothing there. Check with the mine map office named here before you rely on it, and have a qualified engineer look at any ground you are worried about. PublicRecordCenter.com assumes no responsibility or liability for any errors, omissions, or consequences arising from the use of this information.

Straight answers

Boulder County public-records FAQs

Open only the answer you need.

Where can I find mugshots or booking photos in Boulder County, Colorado?

Booking photos are kept by the agency that made the arrest, such as the Boulder County Sheriff or a city police department in Boulder County. Ask that agency for its record. Under C.R.S. 24-72-305.5, it is unlawful to obtain a booking photograph knowing it will be posted on a website or in a publication that charges a fee to remove it; anyone requesting booking photos from a custodian must sign a statement that they will not be used that way.

How do I get a criminal background check in Boulder County, Colorado?

The Colorado criminal history record comes from the Colorado Bureau of Investigation, Biometric Identification and Records Unit. Name and date of birth search online through the Internet Criminal History Check (ICHC), or a request by name or by fingerprints to the CBI for a notarized copy. Fee: $6.00 for each online Internet Criminal History Check (ICHC) search; $13.00 for a name based request by mail.

How can I look up sex offenders in Boulder County, Colorado?

Search the Colorado Sex Offender Registry (CBI), or every state at once on the National Sex Offender Public Website run by the U.S. Department of Justice.

How do I register to vote in Boulder County, Colorado?

Register with the county clerk and recorder or through the Colorado Secretary of State. You can also register online with the state online registration. Voters may register through Election Day; to get a ballot by mail, register online or by mail through the 8th day before Election Day, then in person at a voter service and polling center.

How do I look up property records in Boulder County, Colorado?

Deeds and other recorded land documents in Boulder County are kept by the Boulder County clerk and recorder. Property values are set by the county assessor, and tax bills come from the county treasurer. Source: official state page.

How do I get a birth or death certificate in Boulder County, Colorado?

Certified birth and death certificates for Colorado come from the Colorado Department of Public Health and Environment, Office of the State Registrar of Vital Statistics. Birth and death certificates are also issued at the nearest Local Vital Records office, at the same fees. Online through GoCertificates or VitalChek as linked by the office, by mail to the address printed on the state application, or in person by appointment at the state office or at a Local Vital Records office. Fee: $25 for the first certified copy of a birth or death certificate; $20 for each additional copy ordered at the same time (fee schedule effective 1/1/2026).

How do I find business license records in Boulder County, Colorado?

Business entity filings are searched with the Colorado Secretary of State. Some business licenses come from the Colorado Department of Regulatory Agencies; other licenses are issued through local city or county offices.

Same county

Cities, towns and neighboring counties

Use the city page when a record was created by a municipal police department or city office; use the county page for courts, deeds, vital records and jail custody.

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