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Residential (General/Single)Residential
$98,069$65 / 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 Aug 30, 2026

128TH ST

SD
0
Baths
1,500 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.
5.56 ac
Lot SizeThe size of the land the home sits on, from county records.
1
StoriesHow many floors the home has above ground.

Valuation

$98K
$73K low$123K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,246 (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.$171,118 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$14,104
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$157,014
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$171,118

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.21 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.Residential (General/Single)
CountyBrown
Lot (acres)The size of the land the home sits on, from county records.5.56

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

District: Groton Area School District 06-6

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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

128th 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.

  • Has a bigger lot than 71% of homes in Brown County

How it measures up in Brown County

The dot is this home. The mark in the middle is the typical home in Brown County.

Estimated value$98,069
CheaperTypical $96,933Pricier

Pricier than 51% of homes nearby

Price per ft²$65
CheaperTypical $78Pricier

Pricier than 36% of homes nearby

Living area1,500 ft²
SmallerTypical 1,296 ft²Bigger

Bigger than 63% of homes nearby

Lot size5.56 ac
SmallerTypical 1.01 acBigger

Bigger than 71% of homes nearby

How 128th St ranks against every home in each area.
MeasureThis homeBrown County
Estimated valuepricier than$98,06951% of homes
Price per ft²pricier than$6536% of homes
Living areabigger than1,500 ft²63% of homes
Lot sizebigger than5.56 ac71% of homes

About 128th St

How much is 128th St, , SD worth?

The TopHap Estimate for 128th St, , SD is $98,069 as of Aug 30, 2026. The likely range is $72,996 to $123,142. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 128th St, , SD last sell?

128th St, , SD last sold on Jun 28, 2017, according to the county's recorded deed.

How big is 128th St, , SD?

128th St, , SD has 1,500 square feet of living space and a 5.56-acre lot.

What schools serve 128th St, , SD?

128th St, , SD is assigned to Groton Area Elementary - 02 (elementary), rated B; Groton Area High School - 01 (high), rated A; Groton Area Middle School - 04 (middle), rated B. All sit in Groton Area School District 06-6. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 128th St, , SD compare to other homes in Brown County?

Among the 14,227 homes in Brown County, it is worth more than 51% of them ($98,069 against a typical $96,933), its price per square foot is higher than 36% of them ($65 against a typical $78), it is bigger than 63% of them (1,500 ft² against a typical 1,296 ft²) and its lot is bigger than 71% of them (5.56 ac against a typical 1.01 ac). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 128th St, , SD?

The 2025 property tax bill for 128th St, , SD was $2,246. The county assessed it at $171,118.