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Mobile HomeResidential
$114,254$248 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

21 SIOUX AVE

RIVERTON, WY 82501
2
Beds
1
Baths
460 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.
1960
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$114K
$110K low$119K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$25 (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.$429 (2026)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$429
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$309
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$5,587

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Mobile Home
StyleThe architectural style of the home, such as ranch or colonial.Mobile Home
CountyFREMONT
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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
Riverton Middle SchoolC
Middle · Grades 6–8 · 2.8 mi
H
Riverton High SchoolC
High · Grades 9–12 · 3.0 mi

District: Fremont County School District 25

Neighborhood · ZIP 82501These 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.120
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.110
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.109

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.19,372
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.14 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$56,794
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$70,200
Average tempThe average temperature here across a full year.44°F
Annual precipHow much rain and melted snow falls here in a typical year.9 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 Sioux Ave 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 95% of homes in Riverton 82501
  • Costs more per square foot than 92% of homes in Riverton 82501
  • Smaller than 98% of homes in Riverton 82501
  • Older than 78% of homes in Fremont County

What homes are worth in Riverton 82501

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

This home
$91K$732K

This home is worth more than 5% of homes in Riverton 82501.

How it measures up in Riverton 82501

The dot is this home. The mark in the middle is the typical home in Riverton 82501.

Estimated value$114,254
CheaperTypical $254,006Pricier

Pricier than 5% of homes nearby

Price per ft²$248
CheaperTypical $171Pricier

Pricier than 92% of homes nearby

Living area460 ft²
SmallerTypical 1,536 ft²Bigger

Bigger than 2% of homes nearby

Year built1960
OlderTypical 1978Newer

Newer than 24% of homes nearby

How 21 Sioux Ave ranks against every home in each area.
MeasureThis homeRiverton 82501Fremont County
Estimated valuepricier than$114,2545% of homes5% of homes
Price per ft²pricier than$24892% of homes66% of homes
Living areabigger than460 ft²2% of homes2% of homes
Year builtnewer than196024% of homes22% of homes

About 21 Sioux Ave

How much is 21 Sioux Ave, Riverton, WY worth?

The TopHap Estimate for 21 Sioux Ave, Riverton, WY is $114,254 as of Sep 24, 2026. The likely range is $109,623 to $118,885. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Sioux Ave, Riverton, WY last sell?

21 Sioux Ave, Riverton, WY last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21 Sioux Ave, Riverton, WY?

21 Sioux Ave, Riverton, WY has 2 bedrooms, 1 bathrooms and 460 square feet of living space.

When was 21 Sioux Ave, Riverton, WY built?

21 Sioux Ave, Riverton, WY was built in 1960, making it 66 years old. It is a mobile home home. The building has 1 story.

What schools serve 21 Sioux Ave, Riverton, WY?

21 Sioux Ave, Riverton, WY is assigned to Riverton Middle School (middle), rated C; Riverton High School (high), rated C. All sit in Fremont County School District 25. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Sioux Ave, Riverton, WY compare to other homes in Riverton 82501?

Among the 7,412 homes in Riverton 82501, it is worth more than 5% of them ($114,254 against a typical $254,006), its price per square foot is higher than 92% of them ($248 against a typical $171), it is bigger than 2% of them (460 ft² against a typical 1,536 ft²) and it is newer than 24% of them (1960 against a typical 1978). Measured against all of Fremont County, it is worth more than 5% 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 Sioux Ave, Riverton, WY?

The 2025 property tax bill for 21 Sioux Ave, Riverton, WY was $25. The county assessed it at $429.

More homes on Sioux Ave

Closest homes

More homes in Riverton 82501

Assigned schools

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