Thunder Mountain Ave, Rancho Cucamonga, CA Property Records

San Bernardino County property records for 17 addresses on Thunder Mountain Ave, Rancho Cucamonga, CA · Last verified August 2026

Thunder Mountain Ave Highlights

Properties 17
Median Sale Price $845,000
Deeds and Mortgages on File 28
Median Price per Sqft $312
Owner Occupied 82%
Median Annual Tax Bill $4,512
Median Year Built 1997
Median Ownership Tenure 18 years

Properties on Thunder Mountain Ave

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

6271 Thunder Mountain Ave

3 bd · 2 ba · 1,749 sqft · 0.17 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$380,000Oct 2008 $6,2032025 Amount on Record Jun 1997 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

6281 Thunder Mountain Ave

4 bd · 3 ba · 2,703 sqft · 0.168 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$303,000Jun 2001 $5,6972025 Amount on Record May 1999 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

6291 Thunder Mountain Ave

4 bd · 3 ba · 2,116 sqft · 0.168 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$195,000Aug 1997 $3,7562025 —Apr 2003 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

6301 Thunder Mountain Ave

4 bd · 3 ba · 2,703 sqft · 0.165 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$900,000Jan 2023 $10,5792025 Amount on Record May 2000 1 Name on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

6311 Thunder Mountain Ave

3 bd · 2 ba · 2,231 sqft · 0.166 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$171,000Feb 1997 $3,8512025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

6321 Thunder Mountain Ave

4 bd · 3 ba · 2,703 sqft · 0.165 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$350,000May 2012 $5,2192025 Amount on Record Nov 1997 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

6331 Thunder Mountain Ave

3 bd · 2 ba · 1,749 sqft · 0.165 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$905,000Nov 2025 $3,6352025 Amount on Record Feb 1997 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

6351 Thunder Mountain Ave

4 bd · 3 ba · 2,703 sqft · 0.165 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$845,000Aug 2023 $9,7842025 Amount on Record Aug 2014 2 Names on Record Assessor + 1 DocumentUpdated Aug 2026

6361 Thunder Mountain Ave

3 bd · 2 ba · 1,749 sqft · 0.165 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$183,000Oct 1997 $3,6062025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

6371 Thunder Mountain Ave

3 bd · 2 ba · 1,749 sqft · 0.165 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$915,000Jul 2025 $3,5442025 Amount on Record Oct 1997 2 Names on Record Assessor + 3 DocumentsUpdated Jul 2026

6381 Thunder Mountain Ave

4 bd · 3 ba · 2,703 sqft · 0.168 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$575,000Mar 2016 $7,8252025 Amount on Record Dec 2009 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

6391 Thunder Mountain Ave

3 bd · 2 ba · 1,749 sqft · 0.165 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$180,000Mar 1998 $6,3672025 —May 2024 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

6401 Thunder Mountain Ave

3 bd · 2 ba · 1,749 sqft · 0.167 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$180,000Jun 1998 $3,4732025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

6411 Thunder Mountain Ave

4 bd · 3 ba · 2,703 sqft · 0.167 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$217,000May 1998 $4,5122025 —Mar 2004 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

6421 Thunder Mountain Ave

3 bd · 2 ba · 1,749 sqft · 0.169 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$499,000Nov 2015 $1,4442025 Amount on Record Mar 2008 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

6431 Thunder Mountain Ave

4 bd · 3 ba · 2,116 sqft · 0.174 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$463,000Jan 2013 $6,6302025 Amount on Record Oct 1999 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

6441 Thunder Mountain Ave

7 bd · 3 ba · 3,163 sqft · 0.218 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$238,500Mar 1998 $4,5052025 2 Names on Record Assessor + 2 DocumentsUpdated Jul 2026

Wildfire Risk on Thunder Mountain Ave

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

Wildfire RiskModerate
this street's cells rank at the 63rd percentile of exposed land nationally · 45th in California
Wildfire LikelihoodModerate — about 1 in 320 per year
ExposureDirect
1 of 2 cells directly exposed · 1 adjoin burnable vegetation

Property Records in Nearby Streets