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Residential (General/Single)Residential
$956,772
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 $665,000 on Oct 12, 2021

6639 MILLSTONE CIR

DEFOREST, WI 53532
0
Baths
2.08 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$957K
$893K low$1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$665,000 · Oct 12, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,168 (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.$948,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$155,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$793,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$696,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$720,400

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.
24
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
60
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
55
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
3
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.Residential (General/Single)
CountyDANE
Lot (acres)The size of the land the home sits on, from county records.2.08
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(5)

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
Windsor Elementary SchoolB+
Elementary · Grades KG–3 · 1.8 mi
H
DeForest High SchoolA-
High · Grades 9–12 · 2.7 mi
M
DeForest Middle SchoolB
Middle · Grades 7–8 · 2.8 mi

District: Deforest Area School District

Neighborhood · ZIP 53532These 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.45
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.78
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.22

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.98%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.5%
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.18,206
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.335 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$108,687
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$122,746
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.33 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

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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

6639 Millstone Cir 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.

  • Among the most valuable homes in Deforest 53532
  • Has a bigger lot than 94% of homes in Deforest 53532

What homes are worth in Deforest 53532

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

This home
$239K$822K

This home is worth more than almost all homes in Deforest 53532.

How it measures up in Deforest 53532

The dot is this home. The mark in the middle is the typical home in Deforest 53532.

Estimated value$956,772
CheaperTypical $435,009Pricier

Pricier than almost all homes nearby

Lot size2.08 ac
SmallerTypical 0.31 acBigger

Bigger than 94% of homes nearby

How 6639 Millstone Cir ranks against every home in each area.
MeasureThis homeDeforest 53532Dane County
Estimated valuepricier than$956,772almost all homes96% of homes
Lot sizebigger than2.08 ac94% of homes93% of homes

About 6639 Millstone Cir

How much is 6639 Millstone Cir, Deforest, WI worth?

The TopHap Estimate for 6639 Millstone Cir, Deforest, WI is $956,772 as of Sep 24, 2026. The likely range is $893,499 to $1,020,045. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 6639 Millstone Cir, Deforest, WI last sell?

6639 Millstone Cir, Deforest, WI last sold on Oct 12, 2021 for $665,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

What schools serve 6639 Millstone Cir, Deforest, WI?

6639 Millstone Cir, Deforest, WI is assigned to Windsor Elementary School (elementary), rated B+; DeForest High School (high), rated A-; DeForest Middle School (middle), rated B. All sit in Deforest Area School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 6639 Millstone Cir, Deforest, WI compare to other homes in Deforest 53532?

Among the 5,883 homes in Deforest 53532, it is worth more than almost all of them ($956,772 against a typical $435,009) and its lot is bigger than 94% of them (2.08 ac against a typical 0.31 ac). Measured against all of Dane County, it is worth more than 96% 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 6639 Millstone Cir, Deforest, WI?

The 2025 property tax bill for 6639 Millstone Cir, Deforest, WI was $13,168. The county assessed it at $948,700.

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Assigned schools

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