Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$242,553$150 / 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 Jul 14, 2026

126 BUFFALO RUN DR

SAN MARCOS, TX 78666
0
Baths
1,613 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.
1963
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$243K
$217K low$268K 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.$242,553
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$194,042

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$791 (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.$119,462 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$48,685
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$70,777
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$165,223
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$119,462

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.8 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
CountyGUADALUPE
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.2000
Lot (acres)The size of the land the home sits on, from county records.0.34
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 48 ft²Patio · 48 ft²

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 · 2.0 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

126 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 82% of homes in San Marcos 78666
  • Costs less per square foot than 90% of homes in San Marcos 78666
  • Smaller than 65% of homes in Guadalupe County
  • Has a bigger lot than 76% of homes in Guadalupe County
  • Older than 96% 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$925K

This home is worth more than 18% 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$242,553
CheaperTypical $326,185Pricier

Pricier than 18% of homes nearby

Price per ft²$150
CheaperTypical $196Pricier

Pricier than 10% of homes nearby

Living area1,613 ft²
SmallerTypical 1,649 ft²Bigger

Bigger than 48% of homes nearby

Lot size0.34 ac
SmallerTypical 0.35 acBigger

Bigger than 50% of homes nearby

Year built1963
OlderTypical 2010Newer

Newer than 4% of homes nearby

How 126 Buffalo Run Dr ranks against every home in each area.
MeasureThis homeSan Marcos 78666Guadalupe County
Estimated valuepricier than$242,55318% of homes21% of homes
Price per ft²pricier than$15010% of homes41% of homes
Living areabigger than1,613 ft²48% of homes35% of homes
Lot sizebigger than0.34 ac50% of homes76% of homes
Year builtnewer than19634% of homes6% of homes

About 126 Buffalo Run Dr

How much is 126 Buffalo Run Dr, San Marcos, TX worth?

The TopHap Estimate for 126 Buffalo Run Dr, San Marcos, TX is $242,553 as of Jul 14, 2026. The likely range is $217,129 to $267,977. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 126 Buffalo Run Dr, San Marcos, TX last sell?

126 Buffalo Run Dr, San Marcos, TX last sold on May 2, 2008, according to the county's recorded deed.

How big is 126 Buffalo Run Dr, San Marcos, TX?

126 Buffalo Run Dr, San Marcos, TX has 1,613 square feet of living space and a 0.34-acre lot.

When was 126 Buffalo Run Dr, San Marcos, TX built?

126 Buffalo Run Dr, San Marcos, TX was built in 1963, making it 63 years old. The building has 1 story.

What schools serve 126 Buffalo Run Dr, San Marcos, TX?

126 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 126 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 18% of them ($242,553 against a typical $326,185), its price per square foot is higher than 10% of them ($150 against a typical $196), it is bigger than 48% of them (1,613 ft² against a typical 1,649 ft²), its lot is bigger than 50% of them (0.34 ac against a typical 0.35 ac) and it is newer than 4% of them (1963 against a typical 2010). Measured against all of Guadalupe County, it is worth more than 21% 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 126 Buffalo Run Dr, San Marcos, TX?

The 2025 property tax bill for 126 Buffalo Run Dr, San Marcos, TX was $791. The county assessed it at $119,462.

Closest homes

More homes in San Marcos 78666

Assigned schools

Explore the area

See this home in context

Open 126 Buffalo Run Dr on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map