Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$161,094$201 / 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
Last sold for $20,000 on Mar 1, 1979

636 WILLIAM ST

BETHLEHEM, PA 18015
4
Beds
1
Baths
800 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.
4,008 ft²
Lot SizeThe size of the land the home sits on, from county records.
1916
Year BuiltThe year the home was originally built, according to county records.
1
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.

Valuation

$161K
$150K low$172K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$20,000 · Mar 1, 1979

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$217 (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.$20,100 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$7,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$13,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$20,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$40,200

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.Custom Design
CountyNorthampton
Lot (acres)The size of the land the home sits on, from county records.0.09
HeatingThe type of heating system in the home.Hot Water
CoolingThe type of cooling or air conditioning in the home.None

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

E
Donegan Elementary SchoolD-
Elementary · Grades PK–5 · 0.4 mi
M
Broughal Middle SchoolD-
Middle · Grades 6–8 · 1.4 mi
H
Liberty High SchoolD
High · Grades 9–12 · 1.7 mi

District: Bethlehem Area 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%

Owner Tools

Do you own this home?
Claim this home

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

636 William St 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 98% of homes in Northampton County
  • Among the smallest homes in Northampton County
  • Has a smaller lot than 81% of homes in Northampton County
  • Older than 76% of homes in Northampton County

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
$127K$1.4M

This home is worth more than 7% 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$161,094
CheaperTypical $275,645Pricier

Pricier than 7% of homes nearby

Price per ft²$201
CheaperTypical $184Pricier

Pricier than 59% of homes nearby

Living area800 ft²
SmallerTypical 1,588 ft²Bigger

Bigger than 2% of homes nearby

Lot size4,008 ft²
SmallerTypical 0.12 acBigger

Bigger than 45% of homes nearby

Year built1916
OlderTypical 1920Newer

Newer than 47% of homes nearby

How 636 William St ranks against every home in each area.
MeasureThis homeBethlehem 18015Northampton County
Estimated valuepricier than$161,0947% of homes2% of homes
Price per ft²pricier than$20159% of homes36% of homes
Living areabigger than800 ft²2% of homesalmost no homes
Lot sizebigger than4,008 ft²45% of homes19% of homes
Year builtnewer than191647% of homes24% of homes

About 636 William St

How much is 636 William St, Bethlehem, PA worth?

The TopHap Estimate for 636 William St, Bethlehem, PA is $161,094 as of Sep 24, 2026. The likely range is $149,989 to $172,199. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 636 William St, Bethlehem, PA last sell?

636 William St, Bethlehem, PA last sold on Mar 1, 1979 for $20,000, according to the county's recorded deed.

How big is 636 William St, Bethlehem, PA?

636 William St, Bethlehem, PA has 4 bedrooms, 1 bathrooms, 800 square feet of living space and a 0.09-acre lot.

When was 636 William St, Bethlehem, PA built?

636 William St, Bethlehem, PA was built in 1916, making it 110 years old. It is a custom design home. The building has 1 story.

What schools serve 636 William St, Bethlehem, PA?

636 William St, Bethlehem, PA is assigned to Donegan Elementary School (elementary), rated D-; Broughal Middle School (middle), rated D-; Liberty High School (high), rated D. All sit in Bethlehem Area School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 636 William St, Bethlehem, PA compare to other homes in Bethlehem 18015?

Among the 8,645 homes in Bethlehem 18015, it is worth more than 7% of them ($161,094 against a typical $275,645), its price per square foot is higher than 59% of them ($201 against a typical $184), it is bigger than 2% of them (800 ft² against a typical 1,588 ft²), its lot is bigger than 45% of them (4,008 ft² against a typical 0.12 ac) and it is newer than 47% of them (1916 against a typical 1920). Measured against all of Northampton County, it is worth more than 2% 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 636 William St, Bethlehem, PA?

The 2026 property tax bill for 636 William St, Bethlehem, PA was $217. The county assessed it at $20,100.

More homes on William St

Closest homes

More homes in Bethlehem 18015

Assigned schools

Explore the area

See this home in context

Open 636 William St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map