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Single Family ResidenceResidential
$382,515$209 / 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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

509 QUAIL RUN

SAN MARCOS, TX 78666
0
Baths
1,834 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.
1
StoriesHow many floors the home has above ground.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$383K
$351K low$414K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$382,515
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$306,012

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,185 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$440,190 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$132,750
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$307,440
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$340,704
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$440,190

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyHays
HeatingThe type of heating system in the home.None
GarageWhether the property has a garage, and details like whether it is attached to the home.Mixed
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
Rodriguez Elementary SchoolB
Elementary · Grades KG–5 · 1.9 mi
M
Miller Middle SchoolC+
Middle · Grades 6–8 · 3.1 mi
H
San Marcos High SchoolC-
High · Grades 9–12 · 3.7 mi

District: San Marcos Consolidated Independent School District

Neighborhood · ZIP 78666These 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.131
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.72
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.16

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.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.18%
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.99,796
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.548 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$54,287
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$69,670
Average tempThe average temperature here across a full year.68°F
Annual precipHow much rain and melted snow falls here in a typical year.37 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.60%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.No

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 Quail Run 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 more than 66% of homes in San Marcos 78666

What homes are worth in San Marcos 78666

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

This home
$160K$852K

This home is worth more than 66% of homes in San Marcos 78666.

How it measures up in San Marcos 78666

The dot is this home. The mark in the middle is the typical home in San Marcos 78666.

Estimated value$382,515
CheaperTypical $325,000Pricier

Pricier than 66% of homes nearby

Price per ft²$209
CheaperTypical $196Pricier

Pricier than 62% of homes nearby

Living area1,834 ft²
SmallerTypical 1,647 ft²Bigger

Bigger than 61% of homes nearby

How 509 Quail Run ranks against every home in each area.
MeasureThis homeSan Marcos 78666Hays County
Estimated valuepricier than$382,51566% of homes51% of homes
Price per ft²pricier than$20962% of homes55% of homes
Living areabigger than1,834 ft²61% of homes45% of homes

About 509 Quail Run

How much is 509 Quail Run, San Marcos, TX worth?

The TopHap Estimate for 509 Quail Run, San Marcos, TX is $382,515 as of Jul 14, 2026. The likely range is $351,338 to $413,692. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 Quail Run, San Marcos, TX last sell?

509 Quail Run, San Marcos, TX last sold on Aug 27, 2025, according to the county's recorded deed.

What schools serve 509 Quail Run, San Marcos, TX?

509 Quail Run, San Marcos, TX is assigned to Rodriguez Elementary School (elementary), rated B; Miller Middle School (middle), rated C+; San Marcos High School (high), rated C-. All sit in San Marcos Consolidated Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 509 Quail Run, San Marcos, TX compare to other homes in San Marcos 78666?

Among the 22,767 homes in San Marcos 78666, it is worth more than 66% of them ($382,515 against a typical $325,000), its price per square foot is higher than 62% of them ($209 against a typical $196) and it is bigger than 61% of them (1,834 ft² against a typical 1,647 ft²). Measured against all of Hays County, it is worth more than 51% 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 Quail Run, San Marcos, TX?

The 2024 property tax bill for 509 Quail Run, San Marcos, TX was $1,185. The county assessed it at $440,190.

Closest homes

More homes in San Marcos 78666

Assigned schools

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