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Single Family ResidenceResidential
$131,617$127 / 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 Sep 24, 2026

321 & 317

ALTON, TX 78573
3
Beds
2
Baths
1,035 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
2004
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$132K
$122K low$142K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,561 (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.$141,979 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$61,425
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$80,554
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$135,479
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$141,979

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.''

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
CountyHIDALGO
Lot (acres)The size of the land the home sits on, from county records.0.15
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
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.Porch · 177 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
Alton Elementary SchoolC-
Elementary · Grades EE–5 · 0.1 mi
M
Rafael Cantu Junior High SchoolC
Middle · Grades 6–8 · 1.8 mi
H
Veterans Memorial High SchoolC
High · Grades 9–12 · 3.3 mi

District: Mission Consolidated Independent School District

Neighborhood · ZIP 78573These 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.79
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.11

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.12%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.21%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.9%
PopulationHow many people live in this area.44,921
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,194 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$51,533
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$74,354
Average tempThe average temperature here across a full year.74°F
Annual precipHow much rain and melted snow falls here in a typical year.23 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.60%

Owner Tools

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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

321 & 317 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 83% of homes in Mission 78573
  • Smaller than 84% of homes in Alton
  • Has a smaller lot than 78% of homes in Mission 78573
  • Newer than 65% of homes in Hidalgo County

What homes are worth in Mission 78573

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

This home
$83K$856K

This home is worth more than 17% of homes in Mission 78573.

How it measures up in Mission 78573

The dot is this home. The mark in the middle is the typical home in Mission 78573.

Estimated value$131,617
CheaperTypical $214,665Pricier

Pricier than 17% of homes nearby

Price per ft²$127
CheaperTypical $135Pricier

Pricier than 42% of homes nearby

Living area1,035 ft²
SmallerTypical 1,592 ft²Bigger

Bigger than 16% of homes nearby

Lot size0.15 ac
SmallerTypical 0.21 acBigger

Bigger than 22% of homes nearby

Year built2004
OlderTypical 2001Newer

Newer than 59% of homes nearby

How 321 & 317 ranks against every home in each area.
MeasureThis homeAltonMission 78573Hidalgo County
Estimated valuepricier than$131,61725% of homes17% of homes22% of homes
Price per ft²pricier than$12747% of homes42% of homes48% of homes
Living areabigger than1,035 ft²16% of homes16% of homes22% of homes
Lot sizebigger than0.15 ac32% of homes22% of homes32% of homes
Year builtnewer than200457% of homes59% of homes65% of homes

About 321 & 317

How much is 321 & 317, Alton, TX worth?

The TopHap Estimate for 321 & 317, Alton, TX is $131,617 as of Sep 24, 2026. The likely range is $121,629 to $141,605. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 321 & 317, Alton, TX last sell?

321 & 317, Alton, TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 321 & 317, Alton, TX?

321 & 317, Alton, TX has 3 bedrooms, 2 bathrooms, 1,035 square feet of living space and a 0.15-acre lot.

When was 321 & 317, Alton, TX built?

321 & 317, Alton, TX was built in 2004, making it 22 years old. The building has 1 story.

What schools serve 321 & 317, Alton, TX?

321 & 317, Alton, TX is assigned to Alton Elementary School (elementary), rated C-; Rafael Cantu Junior High School (middle), rated C; Veterans Memorial High School (high), rated C. All sit in Mission Consolidated Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 321 & 317, Alton, TX compare to other homes in Mission 78573?

Among the 12,156 homes in Mission 78573, it is worth more than 17% of them ($131,617 against a typical $214,665), its price per square foot is higher than 42% of them ($127 against a typical $135), it is bigger than 16% of them (1,035 ft² against a typical 1,592 ft²), its lot is bigger than 22% of them (0.15 ac against a typical 0.21 ac) and it is newer than 59% of them (2004 against a typical 2001). Measured against all of Hidalgo County, it is worth more than 22% 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 321 & 317, Alton, TX?

The 2025 property tax bill for 321 & 317, Alton, TX was $2,561. The county assessed it at $141,979.

Closest homes

More homes in Alton 78573

Assigned schools

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