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Mobile HomeResidential
$234,669$155 / 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 89How 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

1820 ASH ST

SAN MARCOS, TX 78666
0
Baths
1,516 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.
0.59 ac
Lot SizeThe size of the land the home sits on, from county records.
2015
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$235K
$210K low$260K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,215 (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.$192,862 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$86,688
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$106,174
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$164,069
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$192,862

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
Lot (acres)The size of the land the home sits on, from county records.0.59
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.Porch · 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.

H
San Marcos High SchoolC-
High · Grades 9–12 · 2.1 mi
E
DeZavala Elementary SchoolD+
Elementary · Grades KG–5 · 2.3 mi
M
Goodnight Middle SchoolC-
Middle · Grades 6–8 · 2.5 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

1820 Ash 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 84% of homes in San Marcos 78666
  • Costs less per square foot than 88% of homes in San Marcos 78666
  • Smaller than 71% of homes in Guadalupe County
  • Has a bigger lot than 85% of homes in Guadalupe County
  • Newer than 69% 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
$167K$894K

This home is worth more than 16% 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$234,669
CheaperTypical $326,843Pricier

Pricier than 16% of homes nearby

Price per ft²$155
CheaperTypical $195Pricier

Pricier than 12% of homes nearby

Living area1,516 ft²
SmallerTypical 1,658 ft²Bigger

Bigger than 41% of homes nearby

Lot size0.59 ac
SmallerTypical 0.34 acBigger

Bigger than 62% of homes nearby

Year built2015
OlderTypical 2010Newer

Newer than 60% of homes nearby

How 1820 Ash St ranks against every home in each area.
MeasureThis homeSan Marcos 78666Guadalupe County
Estimated valuepricier than$234,66916% of homes19% of homes
Price per ft²pricier than$15512% of homes48% of homes
Living areabigger than1,516 ft²41% of homes29% of homes
Lot sizebigger than0.59 ac62% of homes85% of homes
Year builtnewer than201560% of homes69% of homes

About 1820 Ash St

How much is 1820 Ash St, San Marcos, TX worth?

The TopHap Estimate for 1820 Ash St, San Marcos, TX is $234,669 as of Jul 14, 2026. The likely range is $209,832 to $259,506. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1820 Ash St, San Marcos, TX last sell?

1820 Ash St, San Marcos, TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 1820 Ash St, San Marcos, TX?

1820 Ash St, San Marcos, TX has 1,516 square feet of living space and a 0.59-acre lot.

When was 1820 Ash St, San Marcos, TX built?

1820 Ash St, San Marcos, TX was built in 2015, making it 11 years old. It is a mobile home home. The building has 1 story.

What schools serve 1820 Ash St, San Marcos, TX?

1820 Ash 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 1820 Ash St, San Marcos, TX compare to other homes in San Marcos 78666?

Among the 22,692 homes in San Marcos 78666, it is worth more than 16% of them ($234,669 against a typical $326,843), its price per square foot is higher than 12% of them ($155 against a typical $195), it is bigger than 41% of them (1,516 ft² against a typical 1,658 ft²), its lot is bigger than 62% of them (0.59 ac against a typical 0.34 ac) and it is newer than 60% of them (2015 against a typical 2010). Measured against all of Guadalupe County, it is worth more than 19% 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 1820 Ash St, San Marcos, TX?

The 2025 property tax bill for 1820 Ash St, San Marcos, TX was $2,215. The county assessed it at $192,862.

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