How many tax-delinquent properties are in Boulder County, CO?

1,892 of the 133,279 properties on file in Boulder County, Colorado are on the tax delinquent list in the October 2026 data, 1.4% of the county. The rule: The county tax record shows property taxes past due.

How much does the Boulder County tax delinquent list cost?

1,892 records at 2¢ each comes to $37.84, paid once. No subscription.

What other motivated seller lists are there for Boulder County?

Largest first: high equity (123,159), free and clear (54,650), absentee owners (49,378), corporate owned (38,795), pre-foreclosure (4,290), vacant (1,403). One property can be on several lists, so these overlap.

ColoradoFIPS 08013October 2026 drop

Tax-delinquent properties in Boulder County, CO

1,892

tax-delinquent properties on this list.

1.4% of 133,279 properties on file in Boulder County

The county tax record shows property taxes past due. Each row comes with the owner’s name and mailing address, ready to mail.

Other lists here

Order slipThis list

List: Tax delinquent
Area: Boulder County, CO
Matching records: 1,892
Rate: $0.02 each

Total$37.84

1,892 × 2¢ = $37.84. One payment, the CSV is yours.

01Other lists here

Same county, six more signals.

One property can sit on several lists. The owners who stack signals are often the ones worth calling first.

Tax delinquent in other Colorado counties

02Working it

What to do with it.

WholesalersOffer to buy and settle the back taxes at closing.
InvestorsFind neglected and inherited homes before they reach a tax sale.
Tax-resolution firmsReach owners who need help with a payment plan.

Before you mail

Tax status comes from the county record in the latest drop. An owner may have paid since, so treat it as a lead, not a fact.

Want phone numbers too? Skip tracing is on Acquired Data

03Columns

In every row.

owner_name: Owner on title, plus a second owner when there is one
mail_address: Where the owner receives mail: street, city, state, ZIP
property_address: Street address of the property itself
apn / county_fips: Parcel number and county code, for matching to county records
property_type: Single family, condo, multifamily, land and so on, with beds, baths and sqft
est_value / equity_pct: Estimated value and the share of it the owner holds as equity
open_lien_balance: Total recorded on open mortgages, with the first lender and loan amount
tax_amount / tax_year: Latest annual property tax bill
last_sale_date / price: When the property last changed hands and for how much
years_owned: How long the current owner has held it
signals: Every list the property matches: absentee, high equity, free and clear and more

One row per property, as a CSV. 2¢ a row, $10 minimum.

04By the numbers

Boulder County, in short.

How many tax-delinquent properties are in Boulder County, CO?: 1,892 of the 133,279 properties on file in Boulder County, Colorado are on the tax delinquent list in the October 2026 data, 1.4% of the county. The rule: The county tax record shows property taxes past due.
How much does the Boulder County tax delinquent list cost?: 1,892 records at 2¢ each comes to $37.84, paid once. No subscription.
What other motivated seller lists are there for Boulder County?: Largest first: high equity (123,159), free and clear (54,650), absentee owners (49,378), corporate owned (38,795), pre-foreclosure (4,290), vacant (1,403). One property can be on several lists, so these overlap.

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