Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$144,244$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 87How 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 $108,500 on Sep 21, 2020

504 UNION ST

ALCESTER, SD 57001
3
Beds
3
Baths
1,132 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.
0.24 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$144K
$126K low$163K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$108,500 · Sep 21, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,230 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$126,402 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$12,330
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$114,072
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$126,402

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.0.24
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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 · 0.5 mi
E
Alcester-Hudson Elementary - 04B
Elementary · Grades KG–6 · 0.5 mi
H
Alcester-Hudson High School - 01C
High · Grades 9–12 · 0.5 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%

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

504 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 92% of homes in Union County
  • Costs less per square foot than 88% of homes in Union County
  • Smaller than 79% of homes in Union County
  • Has a smaller lot than 69% of homes in Alcester 57001
  • Older than 78% of homes in Union County

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
$74K$502K

This home is worth more than 24% 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$144,244
CheaperTypical $212,860Pricier

Pricier than 24% of homes nearby

Price per ft²$127
CheaperTypical $156Pricier

Pricier than 34% of homes nearby

Living area1,132 ft²
SmallerTypical 1,346 ft²Bigger

Bigger than 28% of homes nearby

Lot size0.24 ac
SmallerTypical 0.32 acBigger

Bigger than 31% of homes nearby

Year built1950
OlderTypical 1947Newer

Newer than 53% of homes nearby

How 504 Union St ranks against every home in each area.
MeasureThis homeAlcester 57001Union County
Estimated valuepricier than$144,24424% of homes8% of homes
Price per ft²pricier than$12734% of homes12% of homes
Living areabigger than1,132 ft²28% of homes21% of homes
Lot sizebigger than0.24 ac31% of homes41% of homes
Year builtnewer than195053% of homes22% of homes

About 504 Union St

How much is 504 Union St, Alcester, SD worth?

The TopHap Estimate for 504 Union St, Alcester, SD is $144,244 as of Sep 24, 2026. The likely range is $125,557 to $162,931. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 504 Union St, Alcester, SD last sell?

504 Union St, Alcester, SD last sold on Sep 21, 2020 for $108,500, according to the county's recorded deed.

How big is 504 Union St, Alcester, SD?

504 Union St, Alcester, SD has 3 bedrooms, 3 bathrooms, 1,132 square feet of living space and a 0.24-acre lot.

When was 504 Union St, Alcester, SD built?

504 Union St, Alcester, SD was built in 1950, making it 76 years old. The building has 1 story.

What schools serve 504 Union St, Alcester, SD?

504 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 C. All sit in Alcester-Hudson School District 61-1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 504 Union St, Alcester, SD compare to other homes in Alcester 57001?

Among the 457 homes in Alcester 57001, it is worth more than 24% of them ($144,244 against a typical $212,860), its price per square foot is higher than 34% of them ($127 against a typical $156), it is bigger than 28% of them (1,132 ft² against a typical 1,346 ft²), its lot is bigger than 31% of them (0.24 ac against a typical 0.32 ac) and it is newer than 53% of them (1950 against a typical 1947). Measured against all of Union County, it is worth more than 8% 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 504 Union St, Alcester, SD?

The 2026 property tax bill for 504 Union St, Alcester, SD was $2,230. The county assessed it at $126,402.

More homes on Union St

Closest homes

More homes in Alcester 57001

Assigned schools

Explore the area

See this home in context

Open 504 Union 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