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Single Family ResidenceResidential
$320,224$198 / 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 93How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

21 PRINCETON AVE

RIDLEY PARK, PA 19078
4
Beds
1.5
Baths
1,620 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.
0.13 ac
Lot SizeThe size of the land the home sits on, from county records.
1960
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$320K
$298K low$342K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,499 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$167,460 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$45,690
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$121,770
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$167,460
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$167,460

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountyDELAWARE
Lot (acres)The size of the land the home sits on, from county records.0.13
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

E
Leedom Elementary SchoolB+
Elementary · Grades KG–5 · 0.3 mi
M
Ridley Middle SchoolB-
Middle · Grades 6–8 · 0.6 mi
H
Ridley High SchoolB+
High · Grades 9–12 · 1.4 mi

District: Ridley School District

Neighborhood · ZIP 19078These 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.89
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.75

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.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.10,786
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,214 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$91,053
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$104,869
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.45 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

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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

21 Princeton Ave 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 80% of homes in Ridley Park 19078
  • Costs less per square foot than 77% of homes in Ridley Park 19078
  • Bigger than 70% of homes in Ridley Park 19078
  • Newer than 86% of homes in Ridley Park 19078

What homes are worth in Ridley Park 19078

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

This home
$160K$535K

This home is worth more than 20% of homes in Ridley Park 19078.

How it measures up in Ridley Park 19078

The dot is this home. The mark in the middle is the typical home in Ridley Park 19078.

Estimated value$320,224
CheaperTypical $372,581Pricier

Pricier than 20% of homes nearby

Price per ft²$198
CheaperTypical $234Pricier

Pricier than 23% of homes nearby

Living area1,620 ft²
SmallerTypical 1,350 ft²Bigger

Bigger than 70% of homes nearby

Lot size0.13 ac
SmallerTypical 0.11 acBigger

Bigger than 63% of homes nearby

Year built1960
OlderTypical 1953Newer

Newer than 86% of homes nearby

How 21 Princeton Ave ranks against every home in each area.
MeasureThis homeRidley Park 19078Delaware County
Estimated valuepricier than$320,22420% of homes34% of homes
Price per ft²pricier than$19823% of homes32% of homes
Living areabigger than1,620 ft²70% of homes52% of homes
Lot sizebigger than0.13 ac63% of homes46% of homes
Year builtnewer than196086% of homes71% of homes

About 21 Princeton Ave

How much is 21 Princeton Ave, Ridley Park, PA worth?

The TopHap Estimate for 21 Princeton Ave, Ridley Park, PA is $320,224 as of Sep 24, 2026. The likely range is $298,317 to $342,131. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Princeton Ave, Ridley Park, PA last sell?

21 Princeton Ave, Ridley Park, PA last sold on Sep 18, 1975, according to the county's recorded deed.

How big is 21 Princeton Ave, Ridley Park, PA?

21 Princeton Ave, Ridley Park, PA has 4 bedrooms, 1.5 bathrooms, 1,620 square feet of living space and a 0.13-acre lot.

When was 21 Princeton Ave, Ridley Park, PA built?

21 Princeton Ave, Ridley Park, PA was built in 1960, making it 66 years old. It is a conventional home. The building has 2 stories.

What schools serve 21 Princeton Ave, Ridley Park, PA?

21 Princeton Ave, Ridley Park, PA is assigned to Leedom Elementary School (elementary), rated B+; Ridley Middle School (middle), rated B-; Ridley High School (high), rated B+. All sit in Ridley School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Princeton Ave, Ridley Park, PA compare to other homes in Ridley Park 19078?

Among the 3,714 homes in Ridley Park 19078, it is worth more than 20% of them ($320,224 against a typical $372,581), its price per square foot is higher than 23% of them ($198 against a typical $234), it is bigger than 70% of them (1,620 ft² against a typical 1,350 ft²), its lot is bigger than 63% of them (0.13 ac against a typical 0.11 ac) and it is newer than 86% of them (1960 against a typical 1953). Measured against all of Delaware County, it is worth more than 34% 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 21 Princeton Ave, Ridley Park, PA?

The 2026 property tax bill for 21 Princeton Ave, Ridley Park, PA was $6,499. The county assessed it at $167,460.

More homes on Princeton Ave

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