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Single Family ResidenceResidential
$340,028$320 / 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 94How 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 $277,677 on Mar 22, 2024

643 W 15TH ST

CASPER, WY 82601
4
Beds
2
Baths
1,064 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.
1923
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

$340K
$320K low$360K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$277,677 · Mar 22, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,166 (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.$15,998 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,202
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$13,796
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$15,438
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$320,276

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.33
10
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
39
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
61
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
20
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
39
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.7 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyNATRONA
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2010
Lot (acres)The size of the land the home sits on, from county records.0.11
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.Forced Air
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(11)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(1)

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

M
Dean Morgan Middle SchoolD-
Middle · Grades 6–8 · 0.1 mi
E
Cottonwood Elementary SchoolD
Elementary · Grades PK–5 · 0.4 mi
H
Natrona County High SchoolD+
High · Grades 9–12 · 0.5 mi

District: Natrona County School District 1

Neighborhood · ZIP 82601These 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.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.83

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.9%
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.29,052
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.51 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$71,179
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$88,597
Average tempThe average temperature here across a full year.44°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.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

643 W 15th 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.

  • Costs more per square foot than 85% of homes in Natrona County
  • Smaller than 68% of homes in Natrona County
  • Has a smaller lot than 93% of homes in Natrona County
  • Older than 92% of homes in Natrona County

What homes are worth in Casper 82601

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

This home
$137K$879K

This home is worth more than 63% of homes in Casper 82601.

How it measures up in Casper 82601

The dot is this home. The mark in the middle is the typical home in Casper 82601.

Estimated value$340,028
CheaperTypical $305,107Pricier

Pricier than 63% of homes nearby

Price per ft²$320
CheaperTypical $255Pricier

Pricier than 84% of homes nearby

Living area1,064 ft²
SmallerTypical 1,190 ft²Bigger

Bigger than 39% of homes nearby

Lot size0.11 ac
SmallerTypical 0.18 acBigger

Bigger than 9% of homes nearby

Year built1923
OlderTypical 1970Newer

Newer than 17% of homes nearby

How 643 W 15th St ranks against every home in each area.
MeasureThis homeCasper 82601Natrona County
Estimated valuepricier than$340,02863% of homes58% of homes
Price per ft²pricier than$32084% of homes85% of homes
Living areabigger than1,064 ft²39% of homes32% of homes
Lot sizebigger than0.11 ac9% of homes7% of homes
Year builtnewer than192317% of homes8% of homes

About 643 W 15th St

How much is 643 W 15th St, Casper, WY worth?

The TopHap Estimate for 643 W 15th St, Casper, WY is $340,028 as of Aug 30, 2026. The likely range is $320,014 to $360,042. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 643 W 15th St, Casper, WY last sell?

643 W 15th St, Casper, WY last sold on Mar 22, 2024 for $277,677, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 643 W 15th St, Casper, WY?

643 W 15th St, Casper, WY has 4 bedrooms, 2 bathrooms, 1,064 square feet of living space and a 0.11-acre lot.

When was 643 W 15th St, Casper, WY built?

643 W 15th St, Casper, WY was built in 1923, making it 103 years old. It is a ranch home. The building has 1 story.

What schools serve 643 W 15th St, Casper, WY?

643 W 15th St, Casper, WY is assigned to Dean Morgan Middle School (middle), rated D-; Cottonwood Elementary School (elementary), rated D; Natrona County High School (high), rated D+. All sit in Natrona County School District 1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 643 W 15th St, Casper, WY compare to other homes in Casper 82601?

Among the 10,675 homes in Casper 82601, it is worth more than 63% of them ($340,028 against a typical $305,107), its price per square foot is higher than 84% of them ($320 against a typical $255), it is bigger than 39% of them (1,064 ft² against a typical 1,190 ft²), its lot is bigger than 9% of them (0.11 ac against a typical 0.18 ac) and it is newer than 17% of them (1923 against a typical 1970). Measured against all of Natrona County, it is worth more than 58% 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 643 W 15th St, Casper, WY?

The 2025 property tax bill for 643 W 15th St, Casper, WY was $1,166. The county assessed it at $15,998.

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