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Mobile HomeResidential

20185 S GEMSTONE AVE

MAMMOTH, AZ 85618
0
Baths
1,536 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.
2 ac
Lot SizeThe size of the land the home sits on, from county records.
1981
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$290 (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.$2,419 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$806
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,613
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$2,419
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$24,193

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.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.Mobile Home
CountyPinal
Lot (acres)The size of the land the home sits on, from county records.2.00
ConstructionThe main material the home's frame and walls are built from.Steel Frame
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.Window A/C
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

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.

M
San Manuel Jr. High SchoolD-
Middle · Grades 6–8 · 6.4 mi
H
San Manuel High SchoolD
High · Grades 9–12 · 6.4 mi
E
San Manuel Elementary SchoolC-
Elementary · Grades PK–5 · 6.4 mi

District: Mammoth-San Manuel Unified District

Neighborhood · ZIP 85618These 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.152
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 100.65

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.84%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.1.6%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.26%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.1,516
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.31 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$39,005
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$50,848
Average tempThe average temperature here across a full year.65°F
Annual precipHow much rain and melted snow falls here in a typical year.17 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.86%

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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

20185 S Gemstone 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.

  • Bigger than 74% of homes in Mammoth 85618
  • Has a bigger lot than 95% of homes in Pinal County
  • Older than 89% of homes in Pinal County

How it measures up in Mammoth 85618

The dot is this home. The mark in the middle is the typical home in Mammoth 85618.

Living area1,536 ft²
SmallerTypical 1,215 ft²Bigger

Bigger than 74% of homes nearby

Lot size2 ac
SmallerTypical 0.23 acBigger

Bigger than 85% of homes nearby

Year built1981
OlderTypical 1970Newer

Newer than 76% of homes nearby

How 20185 S Gemstone Ave ranks against every home in each area.
MeasureThis homeMammoth 85618Pinal County
Living areabigger than1,536 ft²74% of homes30% of homes
Lot sizebigger than2 ac85% of homes95% of homes
Year builtnewer than198176% of homes11% of homes

About 20185 S Gemstone Ave

When did 20185 S Gemstone Ave, Mammoth, AZ last sell?

20185 S Gemstone Ave, Mammoth, AZ last sold on Oct 30, 1998, according to the county's recorded deed.

How big is 20185 S Gemstone Ave, Mammoth, AZ?

20185 S Gemstone Ave, Mammoth, AZ has 1,536 square feet of living space and a 2.00-acre lot.

When was 20185 S Gemstone Ave, Mammoth, AZ built?

20185 S Gemstone Ave, Mammoth, AZ was built in 1981, making it 45 years old. The building has 1 story.

What schools serve 20185 S Gemstone Ave, Mammoth, AZ?

20185 S Gemstone Ave, Mammoth, AZ is assigned to San Manuel Jr. High School (middle), rated D-; San Manuel High School (high), rated D; San Manuel Elementary School (elementary), rated C-. All sit in Mammoth-San Manuel Unified District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20185 S Gemstone Ave, Mammoth, AZ compare to other homes in Mammoth 85618?

Among the 589 homes in Mammoth 85618, it is bigger than 74% of them (1,536 ft² against a typical 1,215 ft²), its lot is bigger than 85% of them (2 ac against a typical 0.23 ac) and it is newer than 76% of them (1981 against a typical 1970). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 20185 S Gemstone Ave, Mammoth, AZ?

The 2025 property tax bill for 20185 S Gemstone Ave, Mammoth, AZ was $290. The county assessed it at $2,419.

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