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Single Family ResidenceResidential
$146,425$87 / 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 90How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

509 MARTIN AVE

GROOM, TX 79039
1
Baths
1,684 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.
0.31 ac
Lot SizeThe size of the land the home sits on, from county records.
1966
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$146K
$132K low$160K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,860 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$124,790 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$122,090
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$90,410
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$124,790

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.45
29
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
64
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
87
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
30
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
17
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.5 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.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
CountyCARSON
Lot (acres)The size of the land the home sits on, from county records.0.31
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

E
Groom SchoolB+
Elementary · Grades KG–12 · 0.5 mi

District: Groom Independent School District

Neighborhood · ZIP 79039These 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.143
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.96
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.41

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.82%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.7%
PopulationHow many people live in this area.1,003
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$76,706
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$93,736
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.22 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.73%

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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

509 Martin 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.

  • Costs less per square foot than 67% of homes in Carson County
  • Has a smaller lot than 65% of homes in Groom 79039
  • Newer than 65% of homes in Groom 79039

What homes are worth in Groom 79039

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

This home
$47K$453K

This home is worth more than 54% of homes in Groom 79039.

How it measures up in Groom 79039

The dot is this home. The mark in the middle is the typical home in Groom 79039.

Estimated value$146,425
CheaperTypical $138,474Pricier

Pricier than 54% of homes nearby

Price per ft²$87
CheaperTypical $76Pricier

Pricier than 63% of homes nearby

Living area1,684 ft²
SmallerTypical 1,688 ft²Bigger

Bigger than 50% of homes nearby

Lot size0.31 ac
SmallerTypical 0.32 acBigger

Bigger than 35% of homes nearby

Year built1966
OlderTypical 1955Newer

Newer than 65% of homes nearby

How 509 Martin Ave ranks against every home in each area.
MeasureThis homeGroom 79039Carson County
Estimated valuepricier than$146,42554% of homes45% of homes
Price per ft²pricier than$8763% of homes33% of homes
Living areabigger than1,684 ft²50% of homes56% of homes
Lot sizebigger than0.31 ac35% of homes46% of homes
Year builtnewer than196665% of homes47% of homes

About 509 Martin Ave

How much is 509 Martin Ave, Groom, TX worth?

The TopHap Estimate for 509 Martin Ave, Groom, TX is $146,425 as of Oct 21, 2026. The likely range is $132,447 to $160,403. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 Martin Ave, Groom, TX last sell?

509 Martin Ave, Groom, TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 509 Martin Ave, Groom, TX?

509 Martin Ave, Groom, TX has 1 bathrooms, 1,684 square feet of living space and a 0.31-acre lot.

When was 509 Martin Ave, Groom, TX built?

509 Martin Ave, Groom, TX was built in 1966, making it 60 years old. The building has 1 story.

What schools serve 509 Martin Ave, Groom, TX?

509 Martin Ave, Groom, TX is assigned to Groom School (elementary), rated B+. All sit in Groom Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 509 Martin Ave, Groom, TX compare to other homes in Groom 79039?

Among the 376 homes in Groom 79039, it is worth more than 54% of them ($146,425 against a typical $138,474), its price per square foot is higher than 63% of them ($87 against a typical $76), it is bigger than 50% of them (1,684 ft² against a typical 1,688 ft²), its lot is bigger than 35% of them (0.31 ac against a typical 0.32 ac) and it is newer than 65% of them (1966 against a typical 1955). Measured against all of Carson County, it is worth more than 45% 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 509 Martin Ave, Groom, TX?

The 2026 property tax bill for 509 Martin Ave, Groom, TX was $2,860. The county assessed it at $124,790.

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