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Single Family ResidenceResidential
$145,408$127 / 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 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

102 UNION ST

ALCESTER, SD 57001
3
Beds
0
Baths
1,144 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.
0.26 ac
Lot SizeThe size of the land the home sits on, from county records.
1979
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$145K
$124K low$167K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,960 (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.$218,977 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$15,937
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$203,040
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$218,977

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyUnion
Lot (acres)The size of the land the home sits on, from county records.0.26
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached

Transaction History(3)

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.

M
Alcester-Hudson Jr. High - 03D+
Middle · Grades 7–8 · 0.6 mi
E
Alcester-Hudson Elementary - 04B-
Elementary · Grades KG–6 · 0.6 mi
H
Alcester-Hudson High School - 01D-
High · Grades 9–12 · 0.6 mi

District: Alcester-Hudson School District 61-1

Neighborhood · ZIP 57001These 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.146
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.97
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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.7%
PopulationHow many people live in this area.2,440
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.23 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$66,724
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$77,764
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.27 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.63%

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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

102 Union 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 83% of homes in Union County
  • Costs more per square foot than 78% of homes in Alcester 57001
  • Smaller than 79% of homes in Union County
  • Newer than 80% of homes in Alcester 57001

What homes are worth in Alcester 57001

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

This home
$44K$450K

This home is worth more than 53% of homes in Alcester 57001.

How it measures up in Alcester 57001

The dot is this home. The mark in the middle is the typical home in Alcester 57001.

Estimated value$145,408
CheaperTypical $139,991Pricier

Pricier than 53% of homes nearby

Price per ft²$127
CheaperTypical $98Pricier

Pricier than 78% of homes nearby

Living area1,144 ft²
SmallerTypical 1,352 ft²Bigger

Bigger than 30% of homes nearby

Lot size0.26 ac
SmallerTypical 0.32 acBigger

Bigger than 36% of homes nearby

Year built1979
OlderTypical 1942Newer

Newer than 80% of homes nearby

How 102 Union St ranks against every home in each area.
MeasureThis homeAlcester 57001Union County
Estimated valuepricier than$145,40853% of homes17% of homes
Price per ft²pricier than$12778% of homes26% of homes
Living areabigger than1,144 ft²30% of homes21% of homes
Lot sizebigger than0.26 ac36% of homes44% of homes
Year builtnewer than197980% of homes43% of homes

About 102 Union St

How much is 102 Union St, Alcester, SD worth?

The TopHap Estimate for 102 Union St, Alcester, SD is $145,408 as of Aug 30, 2026. The likely range is $123,990 to $166,826. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 102 Union St, Alcester, SD last sell?

102 Union St, Alcester, SD last sold on Jul 1, 2015, according to the county's recorded deed.

How big is 102 Union St, Alcester, SD?

102 Union St, Alcester, SD has 3 bedrooms, 1,144 square feet of living space and a 0.26-acre lot.

When was 102 Union St, Alcester, SD built?

102 Union St, Alcester, SD was built in 1979, making it 47 years old. The building has 1 story.

What schools serve 102 Union St, Alcester, SD?

102 Union St, Alcester, SD is assigned to Alcester-Hudson Jr. High - 03 (middle), rated D+; Alcester-Hudson Elementary - 04 (elementary), rated B-; Alcester-Hudson High School - 01 (high), rated D-. All sit in Alcester-Hudson School District 61-1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 102 Union St, Alcester, SD compare to other homes in Alcester 57001?

Among the 455 homes in Alcester 57001, it is worth more than 53% of them ($145,408 against a typical $139,991), its price per square foot is higher than 78% of them ($127 against a typical $98), it is bigger than 30% of them (1,144 ft² against a typical 1,352 ft²), its lot is bigger than 36% of them (0.26 ac against a typical 0.32 ac) and it is newer than 80% of them (1979 against a typical 1942). Measured against all of Union 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 102 Union St, Alcester, SD?

The 2025 property tax bill for 102 Union St, Alcester, SD was $3,960. The county assessed it at $218,977.

More homes on Union St

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Assigned schools

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