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Single Family ResidenceResidential
$175,113$208 / 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 95How 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

318 ARCH ST

MARS, PA 16046
3
Beds
1
Baths
840 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.
4,133 ft²
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$175K
$167K low$184K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$669 (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.$12,630 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,470
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$11,160
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$12,630

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.49
64
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
8
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
70
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
85
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
20
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.31 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.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.Single Family 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.0.09
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.No

Transaction History(1)

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.

E
Mars Area Primary Center
Elementary · Grades KG–1 · 1.6 mi
H
Mars Area High SchoolA
High · Grades 9–12 · 1.9 mi
M
Mars Area Middle SchoolB+
Middle · Grades 7–8 · 2.1 mi

District: Mars Area School District

Neighborhood · ZIP 16046These 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.55
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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.36%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.3%
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.20,196
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.885 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$131,280
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$161,207
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.40 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

318 Arch 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 Mars 16046
  • Costs less per square foot than 77% of homes in Mars 16046
  • Smaller than 98% of homes in Mars 16046
  • Has a smaller lot than 87% of homes in Butler County
  • Older than 94% of homes in Mars 16046

What homes are worth in Mars 16046

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

This home
$168K$1.5M

This home is worth more than 2% of homes in Mars 16046.

How it measures up in Mars 16046

The dot is this home. The mark in the middle is the typical home in Mars 16046.

Estimated value$175,113
CheaperTypical $530,465Pricier

Pricier than 2% of homes nearby

Price per ft²$208
CheaperTypical $232Pricier

Pricier than 23% of homes nearby

Living area840 ft²
SmallerTypical 2,420 ft²Bigger

Bigger than 2% of homes nearby

Lot size4,133 ft²
SmallerTypical 0.29 acBigger

Bigger than 26% of homes nearby

Year built1900
OlderTypical 2005Newer

Newer than 6% of homes nearby

How 318 Arch St ranks against every home in each area.
MeasureThis homeMars 16046Butler County
Estimated valuepricier than$175,1132% of homes16% of homes
Price per ft²pricier than$20823% of homes56% of homes
Living areabigger than840 ft²2% of homes5% of homes
Lot sizebigger than4,133 ft²26% of homes13% of homes
Year builtnewer than19006% of homes15% of homes

About 318 Arch St

How much is 318 Arch St, Mars, PA worth?

The TopHap Estimate for 318 Arch St, Mars, PA is $175,113 as of Sep 24, 2026. The likely range is $166,617 to $183,609. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 318 Arch St, Mars, PA last sell?

318 Arch St, Mars, PA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 318 Arch St, Mars, PA?

318 Arch St, Mars, PA has 3 bedrooms, 1 bathrooms, 840 square feet of living space and a 0.09-acre lot.

When was 318 Arch St, Mars, PA built?

318 Arch St, Mars, PA was built in 1900, making it 126 years old. It is a conventional home.

What schools serve 318 Arch St, Mars, PA?

318 Arch St, Mars, PA is assigned to Mars Area Primary Center (elementary); Mars Area High School (high), rated A; Mars Area Middle School (middle), rated B+. All sit in Mars Area School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 318 Arch St, Mars, PA compare to other homes in Mars 16046?

Among the 7,632 homes in Mars 16046, it is worth more than 2% of them ($175,113 against a typical $530,465), its price per square foot is higher than 23% of them ($208 against a typical $232), it is bigger than 2% of them (840 ft² against a typical 2,420 ft²), its lot is bigger than 26% of them (4,133 ft² against a typical 0.29 ac) and it is newer than 6% of them (1900 against a typical 2005). Measured against all of Butler County, it is worth more than 16% 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 318 Arch St, Mars, PA?

The 2026 property tax bill for 318 Arch St, Mars, PA was $669. The county assessed it at $12,630.

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