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Mobile HomeResidential
$222,774$183 / 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 83How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

3915 PLUM ST

SAN MARCOS, TX 78666
0
Baths
1,216 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.
1996
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$223K
$186K low$260K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$71 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$29,153
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$53,419

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.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.1 percent flood zone

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
StyleThe architectural style of the home, such as ranch or colonial.Mobile Home
CountyGUADALUPE
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (Unspecified)
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 · 64 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

H
San Marcos High SchoolC-
High · Grades 9–12 · 2.5 mi
E
DeZavala Elementary SchoolD+
Elementary · Grades KG–5 · 2.6 mi
M
Goodnight Middle SchoolC-
Middle · Grades 6–8 · 2.8 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%

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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

3915 Plum St 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 88% of homes in San Marcos 78666
  • Costs more per square foot than 79% of homes in Guadalupe County
  • Smaller than 84% of homes in Guadalupe County
  • Older than 74% 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
$168K$867K

This home is worth more than 12% 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$222,774
CheaperTypical $327,413Pricier

Pricier than 12% of homes nearby

Price per ft²$183
CheaperTypical $196Pricier

Pricier than 38% of homes nearby

Living area1,216 ft²
SmallerTypical 1,653 ft²Bigger

Bigger than 23% of homes nearby

Year built1996
OlderTypical 2010Newer

Newer than 26% of homes nearby

How 3915 Plum St ranks against every home in each area.
MeasureThis homeSan Marcos 78666Guadalupe County
Estimated valuepricier than$222,77412% of homes15% of homes
Price per ft²pricier than$18338% of homes79% of homes
Living areabigger than1,216 ft²23% of homes16% of homes
Year builtnewer than199626% of homes29% of homes

About 3915 Plum St

How much is 3915 Plum St, San Marcos, TX worth?

The TopHap Estimate for 3915 Plum St, San Marcos, TX is $222,774 as of Aug 30, 2026. The likely range is $185,881 to $259,667. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3915 Plum St, San Marcos, TX last sell?

3915 Plum St, San Marcos, TX last sold on Jan 1, 1900, according to the county's recorded deed.

When was 3915 Plum St, San Marcos, TX built?

3915 Plum St, San Marcos, TX was built in 1996, making it 30 years old. It is a mobile home home. The building has 1 story.

What schools serve 3915 Plum St, San Marcos, TX?

3915 Plum St, San Marcos, TX is assigned to San Marcos High School (high), rated C-; DeZavala Elementary School (elementary), rated D+; 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 3915 Plum St, San Marcos, TX compare to other homes in San Marcos 78666?

Among the 22,691 homes in San Marcos 78666, it is worth more than 12% of them ($222,774 against a typical $327,413), its price per square foot is higher than 38% of them ($183 against a typical $196), it is bigger than 23% of them (1,216 ft² against a typical 1,653 ft²) and it is newer than 26% of them (1996 against a typical 2010). Measured against all of Guadalupe County, it is worth more than 15% 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 3915 Plum St, San Marcos, TX?

The 2025 property tax bill for 3915 Plum St, San Marcos, TX was $71.

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Assigned schools

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