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Single Family ResidenceResidential
$504,623$253 / 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 90How 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

3735 ROUTE 378

BETHLEHEM, PA 18015
3
Beds
2
Baths
1,996 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.
1.8 ac
Lot SizeThe size of the land the home sits on, from county records.
1983
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$505K
$454K low$555K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$909 (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.$84,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$33,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$50,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$84,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$168,400

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyNorthampton
Lot (acres)The size of the land the home sits on, from county records.1.80
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached

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

M
Saucon Valley Middle SchoolB+
Middle · Grades 5–8 · 3.3 mi
E
Saucon Valley Elementary SchoolA-
Elementary · Grades KG–4 · 3.3 mi
H
Saucon Valley High SchoolA
High · Grades 9–12 · 3.3 mi

District: Saucon Valley School District

Neighborhood · ZIP 18015These 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.120
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.71

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.16%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.37,642
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,719 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$66,214
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$99,329
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.53%

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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

3735 Route 378 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 83% of homes in Bethlehem 18015
  • Costs more per square foot than 82% of homes in Bethlehem 18015
  • Bigger than 72% of homes in Bethlehem 18015
  • Has a bigger lot than 92% of homes in Bethlehem 18015
  • Newer than 82% of homes in Bethlehem 18015

What homes are worth in Bethlehem 18015

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

This home
$132K$1.4M

This home is worth more than 83% of homes in Bethlehem 18015.

How it measures up in Bethlehem 18015

The dot is this home. The mark in the middle is the typical home in Bethlehem 18015.

Estimated value$504,623
CheaperTypical $276,421Pricier

Pricier than 83% of homes nearby

Price per ft²$253
CheaperTypical $184Pricier

Pricier than 82% of homes nearby

Living area1,996 ft²
SmallerTypical 1,584 ft²Bigger

Bigger than 72% of homes nearby

Lot size1.8 ac
SmallerTypical 0.12 acBigger

Bigger than 92% of homes nearby

Year built1983
OlderTypical 1920Newer

Newer than 82% of homes nearby

How 3735 Route 378 ranks against every home in each area.
MeasureThis homeBethlehem 18015Northampton County
Estimated valuepricier than$504,62383% of homes76% of homes
Price per ft²pricier than$25382% of homes77% of homes
Living areabigger than1,996 ft²72% of homes65% of homes
Lot sizebigger than1.8 ac92% of homes91% of homes
Year builtnewer than198382% of homes64% of homes

About 3735 Route 378

How much is 3735 Route 378, Bethlehem, PA worth?

The TopHap Estimate for 3735 Route 378, Bethlehem, PA is $504,623 as of Sep 24, 2026. The likely range is $454,293 to $554,953. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3735 Route 378, Bethlehem, PA last sell?

3735 Route 378, Bethlehem, PA last sold on Mar 1, 1982, according to the county's recorded deed.

How big is 3735 Route 378, Bethlehem, PA?

3735 Route 378, Bethlehem, PA has 3 bedrooms, 2 bathrooms, 1,996 square feet of living space and a 1.80-acre lot.

When was 3735 Route 378, Bethlehem, PA built?

3735 Route 378, Bethlehem, PA was built in 1983, making it 43 years old. The building has 1 story.

What schools serve 3735 Route 378, Bethlehem, PA?

3735 Route 378, Bethlehem, PA is assigned to Saucon Valley Middle School (middle), rated B+; Saucon Valley Elementary School (elementary), rated A-; Saucon Valley High School (high), rated A. All sit in Saucon Valley School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3735 Route 378, Bethlehem, PA compare to other homes in Bethlehem 18015?

Among the 8,645 homes in Bethlehem 18015, it is worth more than 83% of them ($504,623 against a typical $276,421), its price per square foot is higher than 82% of them ($253 against a typical $184), it is bigger than 72% of them (1,996 ft² against a typical 1,584 ft²), its lot is bigger than 92% of them (1.8 ac against a typical 0.12 ac) and it is newer than 82% of them (1983 against a typical 1920). Measured against all of Northampton County, it is worth more than 76% 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 3735 Route 378, Bethlehem, PA?

The 2026 property tax bill for 3735 Route 378, Bethlehem, PA was $909. The county assessed it at $84,200.

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