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Single Family ResidenceResidential
$426,284$305 / 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 74How 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 $195,000 on Nov 21, 2003

621 SPRING ST

MARS, PA 16046
4
Beds
1
Baths
1,398 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.
0.53 ac
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.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$426K
$315K low$538K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$195,000 · Nov 21, 2003

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$709 (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.$13,390 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$10,690
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$13,390

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.44
40
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.
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.8 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.0.53
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 · 1.1 mi
H
Mars Area High SchoolA
High · Grades 9–12 · 1.4 mi
M
Mars Area Middle SchoolB+
Middle · Grades 7–8 · 1.6 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

621 Spring 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 more than 69% of homes in Butler County
  • Costs more per square foot than 95% of homes in Butler County
  • Smaller than 86% of homes in Mars 16046
  • Has a bigger lot than 70% of homes in Mars 16046
  • 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
$171K$1.6M

This home is worth more than 38% 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$426,284
CheaperTypical $531,539Pricier

Pricier than 38% of homes nearby

Price per ft²$305
CheaperTypical $232Pricier

Pricier than 91% of homes nearby

Living area1,398 ft²
SmallerTypical 2,444 ft²Bigger

Bigger than 14% of homes nearby

Lot size0.53 ac
SmallerTypical 0.29 acBigger

Bigger than 70% of homes nearby

Year built1900
OlderTypical 2005Newer

Newer than 6% of homes nearby

How 621 Spring St ranks against every home in each area.
MeasureThis homeMars 16046Butler County
Estimated valuepricier than$426,28438% of homes69% of homes
Price per ft²pricier than$30591% of homes95% of homes
Living areabigger than1,398 ft²14% of homes36% of homes
Lot sizebigger than0.53 ac70% of homes52% of homes
Year builtnewer than19006% of homes15% of homes

About 621 Spring St

How much is 621 Spring St, Mars, PA worth?

The TopHap Estimate for 621 Spring St, Mars, PA is $426,284 as of Sep 24, 2026. The likely range is $314,831 to $537,737. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 621 Spring St, Mars, PA last sell?

621 Spring St, Mars, PA last sold on Nov 21, 2003 for $195,000, according to the county's recorded deed.

How big is 621 Spring St, Mars, PA?

621 Spring St, Mars, PA has 4 bedrooms, 1 bathrooms, 1,398 square feet of living space and a 0.53-acre lot.

When was 621 Spring St, Mars, PA built?

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

What schools serve 621 Spring St, Mars, PA?

621 Spring 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 621 Spring St, Mars, PA compare to other homes in Mars 16046?

Among the 7,632 homes in Mars 16046, it is worth more than 38% of them ($426,284 against a typical $531,539), its price per square foot is higher than 91% of them ($305 against a typical $232), it is bigger than 14% of them (1,398 ft² against a typical 2,444 ft²), its lot is bigger than 70% of them (0.53 ac 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 69% 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 621 Spring St, Mars, PA?

The 2026 property tax bill for 621 Spring St, Mars, PA was $709. The county assessed it at $13,390.

More homes on Spring St

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Assigned schools

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