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Single Family ResidenceResidential
$105,178$92 / 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 86How 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

321 4TH ST

SINAI, SD 57061
3
Beds
1.5
Baths
1,142 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.
0.59 ac
Lot SizeThe size of the land the home sits on, from county records.
1920
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$105K
$91K low$119K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,933 (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.$96,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$25,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$71,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$96,800

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyBROOKINGS
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1951
Lot (acres)The size of the land the home sits on, from county records.0.59
ConstructionThe main material the home's frame and walls are built from.Mixed (Not Specified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 240 ft²Shed · 70 ft²Porch · 182 ft²

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

E
Sioux Valley Elementary - 02B-
Elementary · Grades KG–5 · 8.1 mi
M
Sioux Valley Middle School - 04B+
Middle · Grades 6–8 · 8.1 mi
H
Sioux Valley High School - 01A-
High · Grades 9–12 · 8.1 mi

District: Sioux Valley School District 05-5

Neighborhood · ZIP 57061These 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.89
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.25

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.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.6%
PopulationHow many people live in this area.2
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.12 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$85,440
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$109,004
Average tempThe average temperature here across a full year.44°F
Annual precipHow much rain and melted snow falls here in a typical year.25 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

321 4th 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 97% of homes in Brookings County
  • Costs less per square foot than 94% of homes in Brookings County
  • Smaller than 82% of homes in Brookings County
  • Has a bigger lot than 75% of homes in Brookings County
  • Older than 85% of homes in Brookings County

What homes are worth in Brookings County

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

This home
$77K$237K

This home is worth more than 36% of homes in Brookings County.

How it measures up in Brookings County

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

Estimated value$105,178
CheaperTypical $290,011Pricier

Pricier than 3% of homes nearby

Price per ft²$92
CheaperTypical $151Pricier

Pricier than 6% of homes nearby

Living area1,142 ft²
SmallerTypical 1,815 ft²Bigger

Bigger than 18% of homes nearby

Lot size0.59 ac
SmallerTypical 0.29 acBigger

Bigger than 75% of homes nearby

Year built1920
OlderTypical 1982Newer

Newer than 15% of homes nearby

How 321 4th St ranks against every home in each area.
MeasureThis homeBrookings County
Estimated valuepricier than$105,1783% of homes
Price per ft²pricier than$926% of homes
Living areabigger than1,142 ft²18% of homes
Lot sizebigger than0.59 ac75% of homes
Year builtnewer than192015% of homes

About 321 4th St

How much is 321 4th St, Sinai, SD worth?

The TopHap Estimate for 321 4th St, Sinai, SD is $105,178 as of Aug 30, 2026. The likely range is $90,942 to $119,414. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 321 4th St, Sinai, SD last sell?

321 4th St, Sinai, SD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 321 4th St, Sinai, SD?

321 4th St, Sinai, SD has 3 bedrooms, 1.5 bathrooms, 1,142 square feet of living space and a 0.59-acre lot.

When was 321 4th St, Sinai, SD built?

321 4th St, Sinai, SD was built in 1920, making it 106 years old. The building has 1 story.

What schools serve 321 4th St, Sinai, SD?

321 4th St, Sinai, SD is assigned to Sioux Valley Elementary - 02 (elementary), rated B-; Sioux Valley Middle School - 04 (middle), rated B+; Sioux Valley High School - 01 (high), rated A-. All sit in Sioux Valley School District 05-5. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 321 4th St, Sinai, SD compare to other homes in Brookings County?

Among the 11,413 homes in Brookings County, it is worth more than 3% of them ($105,178 against a typical $290,011), its price per square foot is higher than 6% of them ($92 against a typical $151), it is bigger than 18% of them (1,142 ft² against a typical 1,815 ft²), its lot is bigger than 75% of them (0.59 ac against a typical 0.29 ac) and it is newer than 15% of them (1920 against a typical 1982). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 321 4th St, Sinai, SD?

The 2026 property tax bill for 321 4th St, Sinai, SD was $1,933. The county assessed it at $96,800.

More homes on 4th St

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Assigned schools

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