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Single Family ResidenceResidential
$1,745,790$1,015 / 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 89How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

11541 RIDLEY RD

SAINT ONGE, SD 57779
7
Baths
1,720 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.
61.03 ac
Lot SizeThe size of the land the home sits on, from county records.
2008
Year BuiltThe year the home was originally built, according to county records.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.7M
$1.6M low$1.9M high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$1,745,790
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$1,396,632

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,230 (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.$1,187,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$280,090
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$907,310
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,106,880
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$860,680

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.81 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.Single Family Residence
CountyLAWRENCE
Lot (acres)The size of the land the home sits on, from county records.61.03
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.

H
Spearfish High School - 01C+
High · Grades 9–12 · 6.0 mi
M
Spearfish Middle School - 05B-
Middle · Grades 6–8 · 6.1 mi
E
West Elementary - 03
Elementary · Grades 1–2 · 6.6 mi

District: Spearfish School District 40-2

Neighborhood · ZIP 57779These 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.24
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.101
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.27

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.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.5%
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.894
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.22 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$91,383
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$114,779
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.21 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.63%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

11541 Ridley Rd 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.

  • Among the most valuable homes in Saint Onge 57779
  • Among the highest price per square foot in Lawrence County
  • Bigger than 72% of homes in Lawrence County
  • Among the largest lots in Lawrence County
  • Newer than 91% of homes in Saint Onge 57779

What homes are worth in Saint Onge 57779

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

This home
$139K$1.7M

This home is worth more than almost all homes in Saint Onge 57779.

How it measures up in Saint Onge 57779

The dot is this home. The mark in the middle is the typical home in Saint Onge 57779.

Estimated value$1,745,790
CheaperTypical $608,504Pricier

Pricier than almost all homes nearby

Price per ft²$1015
CheaperTypical $458Pricier

Pricier than almost all homes nearby

Living area1,720 ft²
SmallerTypical 1,340 ft²Bigger

Bigger than 68% of homes nearby

Lot size61.03 ac
SmallerTypical 0.48 acBigger

Bigger than 85% of homes nearby

Year built2008
OlderTypical 1978Newer

Newer than 91% of homes nearby

How 11541 Ridley Rd ranks against every home in each area.
MeasureThis homeSaint Onge 57779Lawrence County
Estimated valuepricier than$1,745,790almost all homesalmost all homes
Price per ft²pricier than$1015almost all homesalmost all homes
Living areabigger than1,720 ft²68% of homes72% of homes
Lot sizebigger than61.03 ac85% of homesalmost all homes
Year builtnewer than200891% of homes78% of homes

About 11541 Ridley Rd

How much is 11541 Ridley Rd, Saint Onge, SD worth?

The TopHap Estimate for 11541 Ridley Rd, Saint Onge, SD is $1,745,790 as of Jul 14, 2026. The likely range is $1,552,344 to $1,939,236. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 11541 Ridley Rd, Saint Onge, SD last sell?

11541 Ridley Rd, Saint Onge, SD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 11541 Ridley Rd, Saint Onge, SD?

11541 Ridley Rd, Saint Onge, SD has 7 bathrooms, 1,720 square feet of living space and a 61.03-acre lot.

When was 11541 Ridley Rd, Saint Onge, SD built?

11541 Ridley Rd, Saint Onge, SD was built in 2008, making it 18 years old.

What schools serve 11541 Ridley Rd, Saint Onge, SD?

11541 Ridley Rd, Saint Onge, SD is assigned to Spearfish High School - 01 (high), rated C+; Spearfish Middle School - 05 (middle), rated B-; West Elementary - 03 (elementary). All sit in Spearfish School District 40-2. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 11541 Ridley Rd, Saint Onge, SD compare to other homes in Saint Onge 57779?

Among the 208 homes in Saint Onge 57779, it is worth more than almost all of them ($1,745,790 against a typical $608,504), its price per square foot is higher than almost all of them ($1015 against a typical $458), it is bigger than 68% of them (1,720 ft² against a typical 1,340 ft²), its lot is bigger than 85% of them (61.03 ac against a typical 0.48 ac) and it is newer than 91% of them (2008 against a typical 1978). Measured against all of Lawrence County, it is worth more than almost all 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 11541 Ridley Rd, Saint Onge, SD?

The 2025 property tax bill for 11541 Ridley Rd, Saint Onge, SD was $11,230. The county assessed it at $1,187,400.

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Assigned schools

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