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Single Family ResidenceResidential
$329,604
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 96How 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 $189,900 on Dec 2, 2009

138 E PROSPECT ST # 140

PORT WASHINGTON, WI 53074
0
Baths
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$330K
$315K low$344K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$189,900 · Dec 2, 2009

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,887 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$187,400 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$54,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$132,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$187,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$237,700

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyOzaukee
Lot (acres)The size of the land the home sits on, from county records.0.10
HeatingThe type of heating system in the home.None
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

E
Lincoln Elementary SchoolA
Elementary · Grades KG–4 · 0.6 mi
H
Port Washington High SchoolA
High · Grades 9–12 · 0.6 mi
M
Thomas Jefferson Middle SchoolA-
Middle · Grades 5–8 · 0.7 mi

District: Port Washington-Saukville School District

Neighborhood · ZIP 53074These 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.117
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.76
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.21

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.8%
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.14,952
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.458 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$77,539
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$96,788
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.32 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

138 E Prospect St # 140 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 83% of homes in Ozaukee County
  • Among the smallest lots in Ozaukee County

What homes are worth in Port Washington 53074

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

This home
$205K$1.1M

This home is worth more than 26% of homes in Port Washington 53074.

How it measures up in Port Washington 53074

The dot is this home. The mark in the middle is the typical home in Port Washington 53074.

Estimated value$329,604
CheaperTypical $388,686Pricier

Pricier than 26% of homes nearby

Lot size0.11 ac
SmallerTypical 0.25 acBigger

Bigger than 2% of homes nearby

How 138 E Prospect St # 140 ranks against every home in each area.
MeasureThis homePort Washington 53074Ozaukee County
Estimated valuepricier than$329,60426% of homes17% of homes
Lot sizebigger than0.11 ac2% of homesalmost no homes

About 138 E Prospect St # 140

How much is 138 E Prospect St # 140, Port Washington, WI worth?

The TopHap Estimate for 138 E Prospect St # 140, Port Washington, WI is $329,604 as of Sep 24, 2026. The likely range is $315,475 to $343,733. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 138 E Prospect St # 140, Port Washington, WI last sell?

138 E Prospect St # 140, Port Washington, WI last sold on Dec 2, 2009 for $189,900, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

What schools serve 138 E Prospect St # 140, Port Washington, WI?

138 E Prospect St # 140, Port Washington, WI is assigned to Lincoln Elementary School (elementary), rated A; Port Washington High School (high), rated A; Thomas Jefferson Middle School (middle), rated A-. All sit in Port Washington-Saukville School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 138 E Prospect St # 140, Port Washington, WI compare to other homes in Port Washington 53074?

Among the 4,491 homes in Port Washington 53074, it is worth more than 26% of them ($329,604 against a typical $388,686) and its lot is bigger than 2% of them (0.11 ac against a typical 0.25 ac). Measured against all of Ozaukee County, it is worth more than 17% 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 138 E Prospect St # 140, Port Washington, WI?

The 2024 property tax bill for 138 E Prospect St # 140, Port Washington, WI was $2,887. The county assessed it at $187,400.

More homes on E Prospect St # 140

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Assigned schools

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