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Single Family ResidenceResidential
$661,042$177 / 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 Jul 14, 2026
Last sold for $280,000 on Apr 28, 2003

4171 RIVER RD

ALLENTOWN, PA 18104
4
Beds
3 / 1
Baths
3,732 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.
1.43 ac
Lot SizeThe size of the land the home sits on, from county records.
1974
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
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

$661K
$617K low$705K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$280,000 · Apr 28, 2003

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,096 (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.$359,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$72,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$286,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$359,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$359,800

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.135 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.0.2 percent flood zone

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyLehigh
Lot (acres)The size of the land the home sits on, from county records.1.43
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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

Transaction History(4)

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.

M
Orefield Middle SchoolB
Middle · Grades 6–8 · 0.7 mi
H
Parkland High SchoolA
High · Grades 9–12 · 1.3 mi
E
Ironton Elementary SchoolA
Elementary · Grades KG–5 · 2.5 mi

District: Parkland School District

Neighborhood · ZIP 18104These 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.81
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.72

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.50,825
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,158 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$87,420
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$112,143
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.46 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.53%

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

4171 River Rd 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 more than 93% of homes in Allentown 18104
  • Costs less per square foot than 86% of homes in Allentown 18104
  • Bigger than 97% of homes in Allentown 18104
  • Has a bigger lot than 98% of homes in Allentown 18104

What homes are worth in Allentown 18104

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

This home
$220K$861K

This home is worth more than 93% of homes in Allentown 18104.

How it measures up in Allentown 18104

The dot is this home. The mark in the middle is the typical home in Allentown 18104.

Estimated value$661,042
CheaperTypical $375,077Pricier

Pricier than 93% of homes nearby

Price per ft²$177
CheaperTypical $216Pricier

Pricier than 14% of homes nearby

Living area3,732 ft²
SmallerTypical 1,790 ft²Bigger

Bigger than 97% of homes nearby

Lot size1.43 ac
SmallerTypical 0.21 acBigger

Bigger than 98% of homes nearby

Year built1974
OlderTypical 1964Newer

Newer than 59% of homes nearby

How 4171 River Rd ranks against every home in each area.
MeasureThis homeAllentown 18104Lehigh County
Estimated valuepricier than$661,04293% of homes92% of homes
Price per ft²pricier than$17714% of homes22% of homes
Living areabigger than3,732 ft²97% of homes97% of homes
Lot sizebigger than1.43 ac98% of homes91% of homes
Year builtnewer than197459% of homes58% of homes

About 4171 River Rd

How much is 4171 River Rd, Allentown, PA worth?

The TopHap Estimate for 4171 River Rd, Allentown, PA is $661,042 as of Jul 14, 2026. The likely range is $617,141 to $704,943. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4171 River Rd, Allentown, PA last sell?

4171 River Rd, Allentown, PA last sold on Apr 28, 2003 for $280,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 4171 River Rd, Allentown, PA?

4171 River Rd, Allentown, PA has 4 bedrooms, 3 bathrooms, 3,732 square feet of living space and a 1.43-acre lot.

When was 4171 River Rd, Allentown, PA built?

4171 River Rd, Allentown, PA was built in 1974, making it 52 years old. The building has 2 stories.

What schools serve 4171 River Rd, Allentown, PA?

4171 River Rd, Allentown, PA is assigned to Orefield Middle School (middle), rated B; Parkland High School (high), rated A; Ironton Elementary School (elementary), rated A. All sit in Parkland School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4171 River Rd, Allentown, PA compare to other homes in Allentown 18104?

Among the 15,316 homes in Allentown 18104, it is worth more than 93% of them ($661,042 against a typical $375,077), its price per square foot is higher than 14% of them ($177 against a typical $216), it is bigger than 97% of them (3,732 ft² against a typical 1,790 ft²), its lot is bigger than 98% of them (1.43 ac against a typical 0.21 ac) and it is newer than 59% of them (1974 against a typical 1964). Measured against all of Lehigh County, it is worth more than 92% 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 4171 River Rd, Allentown, PA?

The 2026 property tax bill for 4171 River Rd, Allentown, PA was $9,096. The county assessed it at $359,800.

More homes on River Rd

Closest homes

More homes in Allentown 18104

Assigned schools

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