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shinnslist · guides · How to find who owns a property in Boulder County, CO

How to find who owns a property in Boulder County, CO

Bottom line: Search the Boulder County Assessor's free online property search by address. The record shows the owner of record and the mailing address used for tax notices. Confirm with the latest deed from the Clerk and Recorder, check the tax bill with the Treasurer, and use the county's parcel map to be sure you have the right lot.

Free beta checked October 18, 2026 · next check by January 18, 2027

Guide

Where do you look up the owner of record in Boulder County?

The Assessor keeps a public record for every parcel. It is free to search.

  1. Open Boulder County Property Search.
  2. Search by address, owner name, or account or parcel number.
  3. Open the record. Read the owner of record, the mailing address on file, values, and the sales history.
  4. For recent sales and bulk files, see the Assessor's property data and sales page and data download page.

The owner of record is whoever holds title in the county's file. It can be a person, a trust, or a company.

Guide

How do you confirm ownership with the deed?

The Assessor updates owner names from recorded deeds. The deed itself is the source.

  1. Start at the Recording Division's search public records page.
  2. Use the online recorded document search to find deeds by name, date, or reception number.
  3. Read the most recent deed to see who took title and how (a person, a trust, or a company).

Searching the index is usually free. Copies of document images may cost a small fee.

Guide

Where is the tax bill, and is it paid?

The Treasurer sends the property tax bill and tracks payments.

  1. Use the Treasurer's property tax search to see the current bill and payment history.
  2. The tax lien sale page explains the yearly sale of unpaid tax liens.

Unpaid taxes are a public fact. They are not proof that an owner wants to sell.

Guide

How do you find the parcel on a map?

  • Property Search includes a map, so you can click a parcel to open its record.
  • The county's plats, maps and GIS page lists map viewers, plats, and data.

A map check helps when an address is shared, a lot is vacant, or one owner holds several parcels side by side.

Guide

What if the record is unclear?

  • Trust or company owner. The record names the trust or company, not the people behind it. The deed may name a trustee or manager.
  • Recent sale. New deeds can take weeks to reach the Assessor's file. Check the Clerk and Recorder for the latest deed.
  • Need many records at once. Ask the Assessor for an existing export. See how to request assessor data under the Colorado Open Records Act.

Cities and towns such as Boulder, Longmont, Lyons and Nederland are inside Boulder County, so the county assessor, clerk and treasurer cover them.

Guide

How does shinnslist use these records?

shinnslist reads these same public county records and joins them parcel by parcel. You can browse Boulder County on shinnslist or start a hunt. shinnslist does not show owner names on public pages.

By the numbers

Boulder County in the records

Parcels in the hunt109,281 parcels the county files as homes or residential land in Boulder County.
Tax bill mailed elsewhere28,149 of the 66,392 with a mailing address on file (42%) send the tax bill to an address other than the property.
Mailed out of state3,787 (6%) send it outside Colorado.
Years since the last saleMedian 12.3 years, from 105,859 parcels with a recorded sale: under 5 years 21,824, 5 to 9 22,575, 10 to 19 25,512, 20 or more 35,948.

Source: shinnslist (county records), read October 16, 2026. How the counts are made and graded: How we grade. Nothing here predicts that an owner will sell. These are counts of public county records.

Questions

Questions people ask

Is it free to look up a property owner in Boulder County?

Yes. The Assessor's online property search is free. Copies of recorded documents may cost a small per-page fee.

Is the mailing address the owner's home?

Not always. It is where the county sends tax notices. It can be a home, a PO box, a trust's office, a lender, or a property manager.

Why does the record show a trust or a company?

Many owners hold property in a trust or company. The deed may name a trustee or manager. That is common and does not mean anything is wrong.

How current is the owner name?

It reflects deeds the Assessor has processed. A very recent sale may not show yet, so check the Clerk and Recorder for the latest deed.

Sources

Where each fact comes from