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CondominiumResidential
$665,243$430 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 97How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $415,000 on Jul 14, 2005

12187 N MAINSTREET

RANCHO CUCAMONGA, CA 91739
Building report
3
Beds
2.5
Baths
1,547 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
1,547 ft²
Lot SizeThe size of the land the home sits on, from county records.
2004
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$665K
$642K low$688K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$415,000 · Jul 14, 2005

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,247 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$578,360 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$144,591
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$433,769

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Modern
CountySAN BERNARDINO
Lot (acres)The size of the land the home sits on, from county records.0.04
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Tile
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Windrows Elementary SchoolA-
Elementary · Grades KG–5 · 1.3 mi
H
Rancho Cucamonga High SchoolA-
High · Grades 9–12 · 1.4 mi
M
Etiwanda Intermediate SchoolB-
Middle · Grades 6–8 · 1.4 mi

District: Chaffey Joint Union High School District

Neighborhood · ZIP 91739These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.47
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.537

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.9%
PopulationHow many people live in this area.41,489
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,320 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$136,481
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$176,085
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.34 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.68%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

12187 N Mainstreet measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth less than 78% of homes in Rancho Cucamonga 91739
  • Costs more per square foot than 81% of homes in San Bernardino County
  • Smaller than 80% of homes in Rancho Cucamonga 91739
  • Has a smaller lot than 94% of homes in Rancho Cucamonga 91739
  • Newer than 88% of homes in Victoria

What homes are worth in Rancho Cucamonga 91739

Each bar is how many homes fall in that price range. The marker is this home.

This home
$445K$1.8M

This home is worth more than 22% of homes in Rancho Cucamonga 91739.

How it measures up in Rancho Cucamonga 91739

The dot is this home. The mark in the middle is the typical home in Rancho Cucamonga 91739.

Estimated value$665,243
CheaperTypical $909,325Pricier

Pricier than 22% of homes nearby

Price per ft²$430
CheaperTypical $370Pricier

Pricier than 76% of homes nearby

Living area1,547 ft²
SmallerTypical 2,554 ft²Bigger

Bigger than 20% of homes nearby

Lot size1,547 ft²
SmallerTypical 0.18 acBigger

Bigger than 6% of homes nearby

Year built2004
OlderTypical 2002Newer

Newer than 69% of homes nearby

How 12187 N Mainstreet ranks against every home in each area.
MeasureThis homeVictoriaRancho Cucamonga 91739San Bernardino County
Estimated valuepricier than$665,24327% of homes22% of homes73% of homes
Price per ft²pricier than$43057% of homes76% of homes81% of homes
Living areabigger than1,547 ft²33% of homes20% of homes47% of homes
Lot sizebigger than1,547 ft²7% of homes6% of homes7% of homes
Year builtnewer than200488% of homes69% of homes83% of homes

About 12187 N Mainstreet

How much is 12187 N Mainstreet, Rancho Cucamonga, CA worth?

The TopHap Estimate for 12187 N Mainstreet, Rancho Cucamonga, CA is $665,243 as of Aug 30, 2026. The likely range is $642,064 to $688,422. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12187 N Mainstreet, Rancho Cucamonga, CA last sell?

12187 N Mainstreet, Rancho Cucamonga, CA last sold on Jul 14, 2005 for $415,000, according to the county's recorded deed.

How big is 12187 N Mainstreet, Rancho Cucamonga, CA?

12187 N Mainstreet, Rancho Cucamonga, CA has 3 bedrooms, 2.5 bathrooms, 1,547 square feet of living space and a 0.04-acre lot.

When was 12187 N Mainstreet, Rancho Cucamonga, CA built?

12187 N Mainstreet, Rancho Cucamonga, CA was built in 2004, making it 22 years old. It is a modern home. The building has 2 stories.

What schools serve 12187 N Mainstreet, Rancho Cucamonga, CA?

12187 N Mainstreet, Rancho Cucamonga, CA is assigned to Windrows Elementary School (elementary), rated A-; Rancho Cucamonga High School (high), rated A-; Etiwanda Intermediate School (middle), rated B-. All sit in Chaffey Joint Union High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12187 N Mainstreet, Rancho Cucamonga, CA compare to other homes in Rancho Cucamonga 91739?

Among the 10,775 homes in Rancho Cucamonga 91739, it is worth more than 22% of them ($665,243 against a typical $909,325), its price per square foot is higher than 76% of them ($430 against a typical $370), it is bigger than 20% of them (1,547 ft² against a typical 2,554 ft²), its lot is bigger than 6% of them (1,547 ft² against a typical 0.18 ac) and it is newer than 69% of them (2004 against a typical 2002). Measured against all of San Bernardino County, it is worth more than 73% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 12187 N Mainstreet, Rancho Cucamonga, CA?

The 2025 property tax bill for 12187 N Mainstreet, Rancho Cucamonga, CA was $7,247. The county assessed it at $578,360.

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Assigned schools

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