Ontario Ct, Boulder, CO Property Records

Boulder County property records for 11 addresses on Ontario Ct, Boulder, CO · Last verified August 2026

Ontario Ct Highlights

Properties 11
Median Sale Price $529,650
Deeds and Mortgages on File 6
Median Price per Sqft $350
Owner Occupied 64%
Median Annual Tax Bill $4,883
Median Year Built 1985
Median Ownership Tenure 15 years

Properties on Ontario Ct

Owner names and prior sale amounts shown locked below are available instantly with a free trial.

52 Ontario Ct

4 bd · 5 ba · 1,728 sqft · 0.064 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$805,000Mar 2023 $4,8832025 Amount on Record May 1989 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

54 Ontario Ct

3 bd · 3.25 ba · 2,408 sqft · 0.117 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$464,000Oct 2015 $5,9142025 Amount on Record Jul 2007 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

55 Ontario Ct

0.051 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 1984 —Jun 1984 1 Name on Record AssessorUpdated Jun 2026

58 Ontario Ct

2 bd · 2.25 ba · 1,728 sqft · 0.063 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$117,300Apr 1985 $4,1572025 —Jun 1984 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

64 Ontario Ct

2 bd · 2.5 ba · 1,513 sqft · 0.082 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$529,650May 2017 $5,2662025 Amount on Record Aug 2007 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

68 Ontario Ct

4 bd · 2.25 ba · 1,788 sqft · 0.064 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Apr 2011 $4,8532025 Amount on Record Jun 1999 2 Names on Record AssessorUpdated Jun 2026

74 Ontario Ct

4 bd · 2.5 ba · 1,788 sqft · 0.069 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$394,000Apr 2006 $4,3842025 Amount on Record Oct 2000 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

75 Ontario Ct

2 ba · 894 sqft · 1.22 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 1984 —Jun 1984 1 Name on Record AssessorUpdated Jun 2026

78 Ontario Ct

3 bd · 2 ba · 1,580 sqft · 0.083 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$640,000Dec 2017 $4,8452025 Amount on Record Nov 1994 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

84 Ontario Ct

3 bd · 2.25 ba · 1,526 sqft · 0.093 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$405,000Nov 2005 $5,3582025 Amount on Record Oct 1998 1 Name on Record AssessorUpdated Jun 2026

88 Ontario Ct

3 bd · 2.5 ba · 2,018 sqft · 0.115 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$875,000Mar 2022 $5,6632025 Amount on Record Dec 1998 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

Wildfire Risk on Ontario Ct

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire RiskModerate
this street's cells rank above 58% of the US · above 43% of Colorado
Wildfire LikelihoodAbout 1 in 641 per year
ExposureIndirect
0 of 1 cells directly exposed

Property Records in Nearby Streets