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Single Family ResidenceResidential
$489,079$287 / 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 98How 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
Last sold for $400,000 on May 6, 2011

21 RIVER ROCK TRL

POWELL, WY 82435
4
Beds
3.5
Baths
1,707 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.
16.24 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.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$489K
$480K low$498K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$400,000 · May 6, 2011

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,664 (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.$54,825 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$10,773
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$44,052
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$53,408
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$814,312

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.197 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.1 percent flood zone

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
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyPARK
Lot (acres)The size of the land the home sits on, from county records.16.24
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.Metal
HeatingThe type of heating system in the home.Central
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, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.Spa/Hot Tub (Only)
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 659 ft²Shed · 1,496 ft²Porch · 110 ft²

Transaction History(3)

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.

E
Clark Elementary School
Elementary · Grades KG–5 · 3.5 mi
M
Powell Middle SchoolB
Middle · Grades 6–8 · 22.7 mi
H
Powell High SchoolB
High · Grades 9–12 · 22.9 mi

District: Park County School District 1

Neighborhood · ZIP 82435These 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.97
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 100.44

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.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.13%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.11,534
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.$69,476
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$83,843
Average tempThe average temperature here across a full year.42°F
Annual precipHow much rain and melted snow falls here in a typical year.14 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.68%

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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

21 River Rock Trl 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 70% of homes in Park County
  • Costs less per square foot than 70% of homes in Park County
  • Has a bigger lot than 87% of homes in Park County
  • Newer than 82% of homes in Powell 82435

What homes are worth in Powell 82435

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

This home
$300K$1.2M

This home is worth more than 36% of homes in Powell 82435.

How it measures up in Powell 82435

The dot is this home. The mark in the middle is the typical home in Powell 82435.

Estimated value$489,079
CheaperTypical $558,940Pricier

Pricier than 36% of homes nearby

Price per ft²$287
CheaperTypical $309Pricier

Pricier than 38% of homes nearby

Living area1,707 ft²
SmallerTypical 1,498 ft²Bigger

Bigger than 61% of homes nearby

Lot size16.24 ac
SmallerTypical 1.07 acBigger

Bigger than 81% of homes nearby

Year built2008
OlderTypical 1980Newer

Newer than 82% of homes nearby

How 21 River Rock Trl ranks against every home in each area.
MeasureThis homePowell 82435Park County
Estimated valuepricier than$489,07936% of homes30% of homes
Price per ft²pricier than$28738% of homes30% of homes
Living areabigger than1,707 ft²61% of homes60% of homes
Lot sizebigger than16.24 ac81% of homes87% of homes
Year builtnewer than200882% of homes82% of homes

About 21 River Rock Trl

How much is 21 River Rock Trl, Powell, WY worth?

The TopHap Estimate for 21 River Rock Trl, Powell, WY is $489,079 as of Aug 30, 2026. The likely range is $480,032 to $498,126. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 River Rock Trl, Powell, WY last sell?

21 River Rock Trl, Powell, WY last sold on May 6, 2011 for $400,000, according to the county's recorded deed.

How big is 21 River Rock Trl, Powell, WY?

21 River Rock Trl, Powell, WY has 4 bedrooms, 3.5 bathrooms, 1,707 square feet of living space and a 16.24-acre lot.

When was 21 River Rock Trl, Powell, WY built?

21 River Rock Trl, Powell, WY was built in 2008, making it 18 years old. It is a ranch home. The building has 1 story.

What schools serve 21 River Rock Trl, Powell, WY?

21 River Rock Trl, Powell, WY is assigned to Clark Elementary School (elementary); Powell Middle School (middle), rated B; Powell High School (high), rated B. All sit in Park County School District 1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 River Rock Trl, Powell, WY compare to other homes in Powell 82435?

Among the 5,116 homes in Powell 82435, it is worth more than 36% of them ($489,079 against a typical $558,940), its price per square foot is higher than 38% of them ($287 against a typical $309), it is bigger than 61% of them (1,707 ft² against a typical 1,498 ft²), its lot is bigger than 81% of them (16.24 ac against a typical 1.07 ac) and it is newer than 82% of them (2008 against a typical 1980). Measured against all of Park County, it is worth more than 30% 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 21 River Rock Trl, Powell, WY?

The 2025 property tax bill for 21 River Rock Trl, Powell, WY was $3,664. The county assessed it at $54,825.

More homes on River Rock Trl

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Assigned schools

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