Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$135,537
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 85How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

309 MARY ST

BOSCOBEL, WI 53805
0
Baths
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$136K
$116K low$155K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,984 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$122,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$22,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$100,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$122,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$126,900

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.28
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
9
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
66
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
60
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
7
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
CountyGrant
Lot (acres)The size of the land the home sits on, from county records.0.17

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

E
Boscobel Elementary SchoolC+
Elementary · Grades PK–5 · 0.3 mi
M
Boscobel Junior High SchoolA-
Middle · Grades 6–8 · 0.4 mi
H
Boscobel High SchoolC+
High · Grades 9–12 · 0.4 mi

District: Boscobel Area School District

Neighborhood · ZIP 53805These 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.126
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.79
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.18

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.9.4%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.5,829
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.43 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$60,075
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$79,765
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.34 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

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

309 Mary 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 79% of homes in Grant County
  • Has a smaller lot than 95% of homes in Boscobel 53805

What homes are worth in Boscobel 53805

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

This home
$52K$574K

This home is worth more than 26% of homes in Boscobel 53805.

How it measures up in Boscobel 53805

The dot is this home. The mark in the middle is the typical home in Boscobel 53805.

Estimated value$135,537
CheaperTypical $189,186Pricier

Pricier than 26% of homes nearby

Lot size0.17 ac
SmallerTypical 0.5 acBigger

Bigger than 5% of homes nearby

How 309 Mary St ranks against every home in each area.
MeasureThis homeBoscobel 53805Grant County
Estimated valuepricier than$135,53726% of homes21% of homes
Lot sizebigger than0.17 ac5% of homes13% of homes

About 309 Mary St

How much is 309 Mary St, Boscobel, WI worth?

The TopHap Estimate for 309 Mary St, Boscobel, WI is $135,537 as of Aug 30, 2026. The likely range is $115,669 to $155,405. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

What schools serve 309 Mary St, Boscobel, WI?

309 Mary St, Boscobel, WI is assigned to Boscobel Elementary School (elementary), rated C+; Boscobel Junior High School (middle), rated A-; Boscobel High School (high), rated C+. All sit in Boscobel Area School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 309 Mary St, Boscobel, WI compare to other homes in Boscobel 53805?

Among the 1,772 homes in Boscobel 53805, it is worth more than 26% of them ($135,537 against a typical $189,186) and its lot is bigger than 5% of them (0.17 ac against a typical 0.5 ac). Measured against all of Grant County, it is worth more than 21% 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 309 Mary St, Boscobel, WI?

The 2025 property tax bill for 309 Mary St, Boscobel, WI was $1,984. The county assessed it at $122,300.

More homes on Mary St

Closest homes

More homes in Boscobel 53805

Assigned schools

Explore the area

See this home in context

Open 309 Mary 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