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Single Family ResidenceResidential
$409,408$240 / 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 81How 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
Last sold for $131,542 on Aug 19, 2024

518 SIDNEY ST

ROCK SPRINGS, WY 82901
3
Beds
1.5
Baths
1,708 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1919
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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$409K
$331K low$488K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$131,542 · Aug 19, 2024
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.$279,168
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$223,334
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.40%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$130,240
UNITED WHOLESALE MORTGAGE · recorded Aug 19, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$912 (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.$12,727 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,781
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$10,946
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$12,332
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$178,628

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountySWEETWATER
Lot (acres)The size of the land the home sits on, from county records.0.12
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Radiant
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 32 ft²

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.

H
Rock Springs High SchoolD+
High · Grades 9–12 · 1.4 mi
M
Rock Springs Junior High SchoolB-
Middle · Grades 7–8 · 1.4 mi

District: Sweetwater County School District 1

Neighborhood · ZIP 82901These 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.107
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.102
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.94

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.87%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.12%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.16%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.26,822
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$80,762
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$101,803
Average tempThe average temperature here across a full year.42°F
Annual precipHow much rain and melted snow falls here in a typical year.7 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.68%

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.No

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

518 Sidney 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 more than 80% of homes in Sweetwater County
  • Costs more per square foot than 91% of homes in Sweetwater County
  • Has a smaller lot than 87% of homes in Sweetwater County
  • Older than 95% of homes in Sweetwater County

What homes are worth in Rock Springs 82901

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

This home
$102K$699K

This home is worth more than 77% of homes in Rock Springs 82901.

How it measures up in Rock Springs 82901

The dot is this home. The mark in the middle is the typical home in Rock Springs 82901.

Estimated value$409,408
CheaperTypical $304,238Pricier

Pricier than 77% of homes nearby

Price per ft²$240
CheaperTypical $167Pricier

Pricier than 89% of homes nearby

Living area1,708 ft²
SmallerTypical 1,583 ft²Bigger

Bigger than 57% of homes nearby

Lot size0.11 ac
SmallerTypical 0.17 acBigger

Bigger than 15% of homes nearby

Year built1919
OlderTypical 1981Newer

Newer than 6% of homes nearby

How 518 Sidney St ranks against every home in each area.
MeasureThis homeRock Springs 82901Sweetwater County
Estimated valuepricier than$409,40877% of homes80% of homes
Price per ft²pricier than$24089% of homes91% of homes
Living areabigger than1,708 ft²57% of homes56% of homes
Lot sizebigger than0.11 ac15% of homes13% of homes
Year builtnewer than19196% of homes5% of homes

About 518 Sidney St

How much is 518 Sidney St, Rock Springs, WY worth?

The TopHap Estimate for 518 Sidney St, Rock Springs, WY is $409,408 as of Jul 14, 2026. The likely range is $330,896 to $487,920. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 518 Sidney St, Rock Springs, WY last sell?

518 Sidney St, Rock Springs, WY last sold on Aug 19, 2024 for $131,542, according to the county's recorded deed.

How big is 518 Sidney St, Rock Springs, WY?

518 Sidney St, Rock Springs, WY has 3 bedrooms, 1.5 bathrooms, 1,708 square feet of living space and a 0.12-acre lot.

When was 518 Sidney St, Rock Springs, WY built?

518 Sidney St, Rock Springs, WY was built in 1919, making it 107 years old. It is a ranch home. The building has 1 story.

What schools serve 518 Sidney St, Rock Springs, WY?

518 Sidney St, Rock Springs, WY is assigned to Rock Springs High School (high), rated D+; Rock Springs Junior High School (middle), rated B-. All sit in Sweetwater County School District 1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 518 Sidney St, Rock Springs, WY compare to other homes in Rock Springs 82901?

Among the 10,711 homes in Rock Springs 82901, it is worth more than 77% of them ($409,408 against a typical $304,238), its price per square foot is higher than 89% of them ($240 against a typical $167), it is bigger than 57% of them (1,708 ft² against a typical 1,583 ft²), its lot is bigger than 15% of them (0.11 ac against a typical 0.17 ac) and it is newer than 6% of them (1919 against a typical 1981). Measured against all of Sweetwater County, it is worth more than 80% 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 518 Sidney St, Rock Springs, WY?

The 2025 property tax bill for 518 Sidney St, Rock Springs, WY was $912. The county assessed it at $12,727.

Closest homes

More homes in Rock Springs 82901

Assigned schools

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