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Single Family ResidenceResidential
$273,729$112 / 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

318 BUFFALO RUN DR

SAN MARCOS, TX 78666
0
Baths
2,440 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.
0.34 ac
Lot SizeThe size of the land the home sits on, from county records.
2010
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$274K
$252K low$295K 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.$273,729
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$218,983

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,125 (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.$290,479 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$69,359
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$277,186
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$264,072
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$346,545

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyGUADALUPE
Lot (acres)The size of the land the home sits on, from county records.0.34
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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
Bowie Elementary SchoolD
Elementary · Grades KG–5 · 2.1 mi
H
San Marcos High SchoolC-
High · Grades 9–12 · 2.6 mi
M
Goodnight Middle SchoolC-
Middle · Grades 6–8 · 3.2 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.Owner occupied
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

318 Buffalo Run Dr 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 68% of homes in San Marcos 78666
  • Among the lowest price per square foot in San Marcos 78666
  • Bigger than 85% of homes in San Marcos 78666
  • Has a bigger lot than 75% of homes in Guadalupe County

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 32% 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$273,729
CheaperTypical $325,000Pricier

Pricier than 32% of homes nearby

Price per ft²$112
CheaperTypical $196Pricier

Cheaper than almost all homes nearby

Living area2,440 ft²
SmallerTypical 1,647 ft²Bigger

Bigger than 85% of homes nearby

Lot size0.34 ac
SmallerTypical 0.35 acBigger

Bigger than 49% of homes nearby

Year built2010
OlderTypical 2010Newer

Newer than 50% of homes nearby

How 318 Buffalo Run Dr ranks against every home in each area.
MeasureThis homeSan Marcos 78666Guadalupe County
Estimated valuepricier than$273,72932% of homes35% of homes
Price per ft²pricier than$112almost no homes4% of homes
Living areabigger than2,440 ft²85% of homes75% of homes
Lot sizebigger than0.34 ac49% of homes75% of homes
Year builtnewer than201050% of homes59% of homes

About 318 Buffalo Run Dr

How much is 318 Buffalo Run Dr, San Marcos, TX worth?

The TopHap Estimate for 318 Buffalo Run Dr, San Marcos, TX is $273,729 as of Jul 14, 2026. The likely range is $252,419 to $295,039. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 318 Buffalo Run Dr, San Marcos, TX last sell?

318 Buffalo Run Dr, San Marcos, TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 318 Buffalo Run Dr, San Marcos, TX?

318 Buffalo Run Dr, San Marcos, TX has 2,440 square feet of living space and a 0.34-acre lot.

When was 318 Buffalo Run Dr, San Marcos, TX built?

318 Buffalo Run Dr, San Marcos, TX was built in 2010, making it 16 years old. The building has 2 stories.

What schools serve 318 Buffalo Run Dr, San Marcos, TX?

318 Buffalo Run Dr, San Marcos, TX is assigned to Bowie Elementary School (elementary), rated D; San Marcos High School (high), rated C-; Goodnight Middle School (middle), 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 318 Buffalo Run Dr, 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 32% of them ($273,729 against a typical $325,000), its price per square foot is higher than almost none of them ($112 against a typical $196), it is bigger than 85% of them (2,440 ft² against a typical 1,647 ft²), its lot is bigger than 49% of them (0.34 ac against a typical 0.35 ac) and it is newer than 50% of them (2010 against a typical 2010). Measured against all of Guadalupe County, it is worth more than 35% 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 318 Buffalo Run Dr, San Marcos, TX?

The 2025 property tax bill for 318 Buffalo Run Dr, San Marcos, TX was $2,125. The county assessed it at $290,479.

Closest homes

More homes in San Marcos 78666

Assigned schools

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