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Rural ResidenceResidential
$309,449$132 / 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 78How 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 $200,000 on Apr 21, 2022

3941 WILLIAM FLYNN HWY

SLIPPERY ROCK, PA 16057
3
Beds
1.5
Baths
2,351 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.
15 ac
Lot SizeThe size of the land the home sits on, from county records.
1948
Year BuiltThe year the home was originally built, according to county records.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$309K
$242K low$377K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$200,000 · Apr 21, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$784 (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.$25,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$3,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$21,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$25,000

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.38
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
6
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
65
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
83
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
36
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Rural Residence
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountyBUTLER
Lot (acres)The size of the land the home sits on, from county records.15.00
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

Transaction History(2)

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
Slippery Rock Area Middle SchoolA-
Middle · Grades 6–8 · 3.6 mi
H
Slippery Rock Area High SchoolB+
High · Grades 9–12 · 3.7 mi
E
Slippery Rock Area Elementary SchoolA-
Elementary · Grades KG–5 · 3.8 mi

District: Slippery Rock Area School District

Neighborhood · ZIP 16057These 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.139
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.96
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.24

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.84%
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.15%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.15,539
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.175 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$58,602
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$80,398
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.42 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.45%

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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

3941 William Flynn Hwy 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 66% of homes in Slippery Rock 16057
  • Costs less per square foot than 84% of homes in Butler County
  • Bigger than 86% of homes in Slippery Rock 16057
  • Has a bigger lot than 96% of homes in Butler County
  • Older than 75% of homes in Butler County

What homes are worth in Slippery Rock 16057

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

This home
$80K$769K

This home is worth more than 66% of homes in Slippery Rock 16057.

How it measures up in Slippery Rock 16057

The dot is this home. The mark in the middle is the typical home in Slippery Rock 16057.

Estimated value$309,449
CheaperTypical $255,771Pricier

Pricier than 66% of homes nearby

Price per ft²$132
CheaperTypical $179Pricier

Pricier than 19% of homes nearby

Living area2,351 ft²
SmallerTypical 1,458 ft²Bigger

Bigger than 86% of homes nearby

Lot size15 ac
SmallerTypical 1.28 acBigger

Bigger than 91% of homes nearby

Year built1948
OlderTypical 1970Newer

Newer than 35% of homes nearby

How 3941 William Flynn Hwy ranks against every home in each area.
MeasureThis homeSlippery Rock 16057Butler County
Estimated valuepricier than$309,44966% of homes48% of homes
Price per ft²pricier than$13219% of homes16% of homes
Living areabigger than2,351 ft²86% of homes75% of homes
Lot sizebigger than15 ac91% of homes96% of homes
Year builtnewer than194835% of homes25% of homes

About 3941 William Flynn Hwy

How much is 3941 William Flynn Hwy, Slippery Rock, PA worth?

The TopHap Estimate for 3941 William Flynn Hwy, Slippery Rock, PA is $309,449 as of Sep 24, 2026. The likely range is $241,967 to $376,931. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3941 William Flynn Hwy, Slippery Rock, PA last sell?

3941 William Flynn Hwy, Slippery Rock, PA last sold on Apr 21, 2022 for $200,000, according to the county's recorded deed.

How big is 3941 William Flynn Hwy, Slippery Rock, PA?

3941 William Flynn Hwy, Slippery Rock, PA has 3 bedrooms, 1.5 bathrooms, 2,351 square feet of living space and a 15.00-acre lot.

When was 3941 William Flynn Hwy, Slippery Rock, PA built?

3941 William Flynn Hwy, Slippery Rock, PA was built in 1948, making it 78 years old. It is a conventional home.

What schools serve 3941 William Flynn Hwy, Slippery Rock, PA?

3941 William Flynn Hwy, Slippery Rock, PA is assigned to Slippery Rock Area Middle School (middle), rated A-; Slippery Rock Area High School (high), rated B+; Slippery Rock Area Elementary School (elementary), rated A-. All sit in Slippery Rock Area School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3941 William Flynn Hwy, Slippery Rock, PA compare to other homes in Slippery Rock 16057?

Among the 4,007 homes in Slippery Rock 16057, it is worth more than 66% of them ($309,449 against a typical $255,771), its price per square foot is higher than 19% of them ($132 against a typical $179), it is bigger than 86% of them (2,351 ft² against a typical 1,458 ft²), its lot is bigger than 91% of them (15 ac against a typical 1.28 ac) and it is newer than 35% of them (1948 against a typical 1970). Measured against all of Butler County, it is worth more than 48% 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 3941 William Flynn Hwy, Slippery Rock, PA?

The 2026 property tax bill for 3941 William Flynn Hwy, Slippery Rock, PA was $784. The county assessed it at $25,000.

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