Boulder County, CO Property Records
Property records in Boulder, Colorado provide important details about real estate, including ownership history, parcel boundaries, assessed values, property tax information, legal descriptions, building characteristics, and sales data. These records are useful for homebuyers, sellers, real estate professionals, researchers, and property owners who need to verify ownership, review valuation changes, estimate taxes, or understand a parcel’s history.
Official records for properties in Boulder are maintained primarily by Boulder County offices, including the Assessor’s Office for valuation and parcel data and the Clerk & Recorder for recorded documents such as deeds and liens. Users can access official Boulder County property information through the county’s online property records search, which provides public access to current and historical property details.
Boulder County, CO Property Records & Statistics
Boulder County has a median rent of $1,771, far above the Colorado median of $1,020 and the national figure of $840.25. Renter-occupied housing accounts for 31.95% of occupied homes, above the state's 25.3% and the national 21.81%, which reflects a large rental market.
The median home value is $680,200, roughly double the state's $341,200 and far above the national $173,750. The median property tax rate of 0.51% is higher than Colorado's 0.38% but below the national 0.74%. Homeowners face some of the highest purchase prices in the state, with a rate that sits between the state and national levels.
Median household income is $111,638, well above both the state's $65,821 and the national $65,108, which helps support the county's high housing costs. The unemployment rate of 2.95% is a bit above Colorado's 2.71% and the national 2.87%, so employment is close to the benchmarks.
Overall, the figures describe an expensive, high-income county with high rents and home values, a sizable renter population, and unemployment near the state and national averages.
Median Rent
Median Property Tax Rate
Median Home Value
Median Income
Unemployment Rate
Renter Occupied Housing
Property Records, Assessments, and Valuations in Boulder
Boulder County property records cover tax assessments, recorded deeds and mortgages, property valuations, and foreclosure filings. The county has 129,115 total parcels, and tax records cover 93.34% of the population for the 2024 assessment year. Recorded documents include 308,956 deeds and 340,213 mortgages, and valuation data is available for 109,397 properties, last updated August 19, 2025.
| Key Data | Details |
|---|---|
| Total Parcels | 129,115 |
| Residential Parcels | 112,606 |
| Commercial Parcels | 3,456 |
| Tax Record Coverage | 93.34% |
| Assessment Year | 2024 |
| Deed Records | 308,956 |
| Mortgage Records | 340,213 |
| Properties with Valuation Data | 109,397 |
| Latest Valuation Update | August 19, 2025 |
| Notice of Trustee Sale Records | 211,646 |
Assignment and Release Records
Assignment and release records follow a mortgage after it is recorded. An assignment shows that a mortgage was transferred from one lender or loan holder to another, while a release shows that the loan was satisfied and the lien removed from the property.
Boulder County has 419,035 assignment and release records. They include 38,569 assignment documents and 380,355 release documents, plus 111 other documents. Assignments were recorded from January 3, 2005, through September 3, 2025, and releases from May 1, 2001, through September 3, 2025.
For property research, these records show who holds a mortgage and whether earlier loans were paid off. Buyers, owners, and title researchers can use them to follow a loan between lenders, confirm that old mortgages were released, and find liens that may still be open before a sale or refinance.
How to Search Boulder County, CO Property Records
Boulder County recorded property documents are kept by the Recording Division, which holds deeds, mortgages, releases, and related filings for the county's 129,115 parcels. County records also include assessment details, valuation data, and foreclosure filings.
Start with the Boulder County Recording Division page for an overview of services and recording requirements. To look up recorded documents such as deeds and mortgages, use the Boulder County official records search.
To search, have the property address, owner name, or document number ready. Open the records search, enter the most complete detail you have, review the results, and open the deed or mortgage that matches. Deed records begin February 8, 1989, and mortgage records April 9, 1998, so the long date range supports detailed ownership research.
The office is at 1750 33rd Street, Boulder, and is open Monday through Thursday, 7:30 AM to 5:00 PM. Call 303-413-7770 for help.
Boulder Registrar of Deeds
The Boulder County Probate Office is located at 1750 33rd Street, Boulder, CO, 80301 and can be reached at 303-413-7770. Office hours are Monday-Thursday 7:30 AM – 5:00 PM. Records can be accessed through recorder.bouldercounty.org or the official website bouldercounty.gov.
Boulder County Recording Division
Boulder County Property Records FAQ
How can I search Boulder County property records by address?
Use the Boulder County official records search and enter the property address to find recorded deeds and mortgages. If it doesn't return a match, try a shorter address or an owner name. The Recording Division can also help at 303-413-7770.
How can I find property owners in Boulder County?
Owners are named on recorded deeds. Search the Boulder County official records search by address or name and open the latest deed to see who holds title. The county has 308,956 deed records dating back to February 8, 1989, which covers many ownership changes.
How can I check a property's assessed value in Boulder County?
The county's records reflect assessment year 2024, with the last assessor update on January 30, 2025. To find the assessed value of a specific property, call the Boulder County Recording Division at 303-413-7770 and ask which office handles valuation questions.
Where can I find Boulder County property tax bills and payment records?
Tax bills and payments are separate from recorded documents. Call the Recording Division at 303-413-7770 and ask which office issues tax statements for your parcel, or begin at the Boulder County Recording Division page. Have the parcel number or address ready.
How can I find deeds and other recorded documents in Boulder County?
Search the Boulder County official records search for deeds, mortgages, releases, and other recorded documents. Mortgage records begin April 9, 1998. In person, visit 1750 33rd Street, Boulder, Monday through Thursday, 7:30 AM to 5:00 PM.
Where can I access Boulder County parcel maps and GIS information?
The county has 129,115 parcels, including 112,606 residential and 3,456 commercial parcels. For parcel maps and GIS layers, call the Boulder County Recording Division at 303-413-7770 and ask which office maintains mapping data. Recorded deeds help confirm legal descriptions.
How can I check permits and zoning information in Boulder County?
Permits and zoning are handled by planning and building offices, not the recorder. Call the Recording Division at 303-413-7770 for a referral. If the property is inside a city such as Boulder or Longmont, check with that city too, since many handle their own permits and zoning.
How can I create a list of property owners in Boulder County?
Online tools work best one property at a time. Use the Boulder County official records search to find owners from recorded deeds. For a larger list or bulk request, call the Recording Division at 303-413-7770 to learn what is available and how to request it.