Colorado, county records

Boulder County, Colorado Public Records

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

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.

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
11
Past producers, now closed
548
Prospects and occurrences, never worked
310
Processing plants, closed
19
Producing when recorded
118
Processing plants, not workings
5
Worked underground, in the mine records
513
Main minerals
Gold; Tungsten; Fluorine-Fluorite
Holes drawn on the old survey maps
962
Shafts and tunnels
495
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

Is an old working under a property here?

The mine records hold 1,011 mine sites inside the county: 548 past producers, now closed, 310 prospects or occurrences that were never worked, 118 sites producing when the record was made, 24 processing plants, which are not workings, 11 sites with no status in the record; the old survey maps add 962 holes drawn inside the county, 495 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.

Broomfield County Longmont Boulder Allenspark Lafayette Louisville Gunbarrel Lazy Acres Eldora Niwot Superior N 10 miles 600 of 2,159 shown
Boulder County: the boundary from the Census Bureau, and one dot for each old mine or hole on record inside it. The purple dots come off the old survey maps and the darkest of those are shafts and tunnels; the red, green and orange ones are mine records. The small open circles with a name are the towns and the pale shapes around the edge are the neighbouring counties, both from the Census Bureau. 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 966 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.

Boulder County lies on the edge of the Denver Region coal field and the coal there is subbituminous, worked mostly at the surface. The two federal files record a shaft, an adit or a deposit where one was drawn on a survey sheet or catalogued as a site; neither file carries the outline of the workings, so the counts above are not the measure of what was mined under this county. The record that shows it is the mine map, held by DRMS Data: electronic documents and mining activity map and linked below.

Colorado abandoned mine maps ranks every county and town in the state by the workings recorded inside it, names the office that holds the mine maps, and says what to do if the ground moves.

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.

Know before you ask

Boulder County records: the figures and the rules

Each figure below was read on the official source linked beside it, October to November 2026. A fee or rule the source does not state is left out rather than guessed, and offices can change their schedules, so confirm on the source before you pay or travel.

What copies cost

Marriage certificate
$1.25 certified copy; postage separate.source
Deed copy, per page
$0.25 ordinary paper copy; watermarked downloads free.source
Certified deed copy
$1 certification plus applicable copy charges.source
State criminal history check, name based
$6.source

Deadlines and the law

Public records response time
3 working days.source
The law behind it
Colorado Open Records Act, C.R.S. section 24-72-203(3)(b)source

Who holds what

Deeds and recording
Boulder County Clerk and Recorder, Recording Divisionsource
Statewide court case search
Authorized vendors, including Colorado Courts Record Search; separate state Docket SearchVendor registers include civil, water, small claims, domestic, felony, misdemeanor and traffic.

Boulder records: watermarked downloads, recorded surveys and certificate products

Use the parties and document category in the recorded index

The county search instructions describe searches by grantor, grantee, document type, recording information and available legal descriptions. A seller can appear as grantor on a deed and in another capacity on a related instrument. Follow the recording reference and legal description across documents instead of treating every occurrence of a surname as the same transaction. Preserve the instrument category with the result so a deed, lien release and covenant are not confused.

Choose a watermarked download or a certified product deliberately

The copy-order guidance makes watermarked documents available for free viewing and download, while identifying clean digital copies and digital certification as separate options. Phone card payments carry a listed $0.75 plus 2.26 percent charge. Decide whether the receiving organization needs certification or whether a research image is sufficient before ordering. Retain an electronically certified file in its issued form rather than assume that printing it preserves every verification feature.

Do not assume every home survey was recorded

The Recording FAQ dates county holdings to 1860 but explains that individual property surveys are rarely recorded unless the owner submits them. A missing survey image can therefore be a collection issue rather than a failed name search. Check the closing or title-policy papers for an improvement location certificate. A recorded subdivision plat and a survey of a particular property are different documents, so identify which one the question actually requires.

Keep submission charges separate from copy charges

The fee schedule effective July 1, 2025 lists $43 per recorded document, with specified exceptions and additional documentary charges. It separately lists ordinary paper copies at $0.25 per page and certification at $1. Those figures should not be added to a research-copy order as though recording occurs again. The office also describes electronic-only plat submission, making the correct document category relevant before a new filing is prepared.

Order a marriage copy after its completed license is recorded

The marriage and civil-union copy instructions require the parties' names, ceremony date and return address. Certified copies cost $1.25 each, with a stamped addressed envelope or the stated postage charge. The completed license must be recorded before the certified copy is issued. A license application, ceremony and recorded return mark different steps; an absent final copy shortly after a ceremony can require checking that return rather than submitting a duplicate application.

Use planning and public-health records alongside the deed

The county records directory separates land-use permits, deposited survey plats, property assessment, septic systems and recorded documents. Use the parcel or site location to connect those collections, but keep each agency's identifier. A deed establishes a recorded transaction; it does not reproduce every permit, inspection or wastewater-system record. The Colorado records guide supplies the separate state judicial routes for litigation involving the property or its owners.

Where to go

Boulder County offices that hold the records

Each office below was read on its own site. A field the office does not publish is left out rather than filled in from a directory.

Boulder County Clerk and Recorder, Recording Division

Recording, document copies, marriage and civil-union records.

Address
1750 33rd Street, Suite 201, Boulder, CO 80301
Phone
303-413-7770
Hours
Monday through Thursday, 7:30 a.m. to 5 p.m.; closed Fridays

Office page: bouldercounty.gov

Labor Department file

Wage and hour cases in Boulder County

The U.S. Department of Labor's Wage and Hour Division closed 219 investigations in Boulder County since fiscal 2005 and recorded $1,682,091 in back wages agreed for 1,900 workers. The county is the one the Census Bureau puts each employer's ZIP code in. Snapshot of April 22, 2026; a case here is a finding by the Division, not a court judgment.

Investigations closed
219
Back wages agreed
$1,682,091
Workers due back wages
1,900
Civil money penalties
$146,315
Employers on the record
203
EmployerCityCasesBack wagesWorkers
Mountain High Appliance, Inc.Louisville1$261,73745
BI IncorporatedBoulder1$169,20559
Del's Masonry, Inc.Longmont1$130,38888
Newflower Market, Inc.Boulder1$125,31178
Turf Paradise, Inc.Longmont1$66,31656
All-Pro Lawns, Inc.Boulder1$60,59218
Crispin Porter & BoguskyBoulder1$54,74030
Quantum Financial Solutions LLCBoulder1$50,642194
Life Care Centers of AmericaLongmont3$37,58574
Zayo Group, LLCBoulder1$36,67733
Lawson Construction CompanyLongmont1$35,62145
Spice China Inc.Louisville2$34,11229
K & S Construction, IncLongmont1$31,61265
Lighthouse Electric, Inc.Boulder2$27,4069
Colorado Residential Solutions IncLafayette1$26,46737
Match MG US LLCBoulder1$24,98217
In Phase Technologies, IncLongmont1$22,6851
Boulder Valley School DistrictBoulder1$21,45280
Professional Dental Arts, LLCLafayette1$19,6529
Developmental Disabilities CenterLafayette2$17,12241
CAP Xcavating, LLCLongmont1$17,0387
Green Hill Landscape, Inc.Lafayette1$16,28313
Loukonen Bros. Stone Co.Longmont1$15,6182
Security Services of America LLCLongmont1$15,49924
Integral Institute, IncBoulder1$15,11116

The 25 employers with the most back wages agreed, of 203 on the Boulder County record; 48 employers have a page of their own and open from the table, the rest show their whole record here. The 178 more with smaller records are on the Colorado wage theft records page, whose search answers for every employer in the state.

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.

Does Boulder allow free recorded-document downloads?

The copy guidance identifies free watermarked downloads.

Can Boulder supply a digital certified recorded copy?

The guidance lists that as a separate online product.

How early are Boulder recording holdings described?

The FAQ says the records date to 1860.

Why might a Boulder property survey be absent from recording?

The FAQ says individual surveys are rarely recorded unless submitted by the owner.

What is Boulder's ordinary paper-copy fee?

The fee table lists $0.25 per page, with certification separate.

What is a Boulder certified marriage-copy charge?

The instructions list $1.25 each, with postage handled separately.

Does a Boulder marriage copy issue before the completed license is recorded?

The instructions require recording before the certified copy is available.

Does Boulder's recorded-document search contain every building permit?

The directory routes land-use permits to a separate county collection.

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.