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Single Family ResidenceResidential
$162,176$114 / 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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

640 WASHINGTON ST

LEAD, SD 57754
2
Baths
1,425 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.
3,920 ft²
Lot SizeThe size of the land the home sits on, from county records.
1909
Year BuiltThe year the home was originally built, according to county records.

Valuation

$162K
$150K low$175K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,687 (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.$130,470 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$22,010
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$108,460
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$126,020
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$88,740

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyLAWRENCE
Lot (acres)The size of the land the home sits on, from county records.0.09
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

M
Lead-Deadwood Middle School - 02C
Middle · Grades 6–8 · 1.3 mi
H
Lead-Deadwood High School - 01C
High · Grades 9–12 · 1.3 mi
E
Lead-Deadwood Elementary - 03C-
Elementary · Grades KG–5 · 1.6 mi

District: Lead-Deadwood School District 40-1

Neighborhood · ZIP 57754These 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.128
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.34

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.73%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.5%
PopulationHow many people live in this area.5,174
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.18 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$60,378
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$74,536
Average tempThe average temperature here across a full year.40°F
Annual precipHow much rain and melted snow falls here in a typical year.28 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

640 Washington 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 98% of homes in Lawrence County
  • Among the lowest price per square foot in Lawrence County
  • Has a smaller lot than 89% of homes in Lead 57754
  • Older than 93% of homes in Lawrence County

What homes are worth in Lead 57754

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

This home
$133K$1.4M

This home is worth more than 6% of homes in Lead 57754.

How it measures up in Lead 57754

The dot is this home. The mark in the middle is the typical home in Lead 57754.

Estimated value$162,176
CheaperTypical $480,190Pricier

Pricier than 6% of homes nearby

Price per ft²$114
CheaperTypical $324Pricier

Pricier than 3% of homes nearby

Living area1,425 ft²
SmallerTypical 1,320 ft²Bigger

Bigger than 57% of homes nearby

Lot size3,920 ft²
SmallerTypical 0.54 acBigger

Bigger than 11% of homes nearby

Year built1909
OlderTypical 1976Newer

Newer than 15% of homes nearby

How 640 Washington St ranks against every home in each area.
MeasureThis homeLead 57754Lawrence County
Estimated valuepricier than$162,1766% of homes2% of homes
Price per ft²pricier than$1143% of homesalmost no homes
Living areabigger than1,425 ft²57% of homes53% of homes
Lot sizebigger than3,920 ft²11% of homes11% of homes
Year builtnewer than190915% of homes7% of homes

About 640 Washington St

How much is 640 Washington St, Lead, SD worth?

The TopHap Estimate for 640 Washington St, Lead, SD is $162,176 as of Oct 21, 2026. The likely range is $149,832 to $174,520. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 640 Washington St, Lead, SD last sell?

640 Washington St, Lead, SD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 640 Washington St, Lead, SD?

640 Washington St, Lead, SD has 2 bathrooms, 1,425 square feet of living space and a 0.09-acre lot.

When was 640 Washington St, Lead, SD built?

640 Washington St, Lead, SD was built in 1909, making it 117 years old.

What schools serve 640 Washington St, Lead, SD?

640 Washington St, Lead, SD is assigned to Lead-Deadwood Middle School - 02 (middle), rated C; Lead-Deadwood High School - 01 (high), rated C; Lead-Deadwood Elementary - 03 (elementary), rated C-. All sit in Lead-Deadwood School District 40-1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 640 Washington St, Lead, SD compare to other homes in Lead 57754?

Among the 4,214 homes in Lead 57754, it is worth more than 6% of them ($162,176 against a typical $480,190), its price per square foot is higher than 3% of them ($114 against a typical $324), it is bigger than 57% of them (1,425 ft² against a typical 1,320 ft²), its lot is bigger than 11% of them (3,920 ft² against a typical 0.54 ac) and it is newer than 15% of them (1909 against a typical 1976). Measured against all of Lawrence County, it is worth more than 2% 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 640 Washington St, Lead, SD?

The 2025 property tax bill for 640 Washington St, Lead, SD was $1,687. The county assessed it at $130,470.

More homes on Washington St

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Assigned schools

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