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Single Family ResidenceResidential
$411,543$408 / 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 93How 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
Last sold for $49,575 on Feb 13, 2025

504 S 15TH ST

PORT O CONNOR, TX 77982
2
Baths
1,008 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.
0.1 ac
Lot SizeThe size of the land the home sits on, from county records.
1984
Year BuiltThe year the home was originally built, according to county records.

Valuation

$412K
$383K low$440K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$49,575 · Feb 13, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,083 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$323,750 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$138,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$185,750
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$326,070
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$323,750

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.96 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.98%
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.Single Family Residence
CountyCALHOUN
Lot (acres)The size of the land the home sits on, from county records.0.10
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
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.Patio · 512 ft²

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

E
Port O Connor SchoolA+
Elementary · Grades PK–5 · 0.9 mi
M
Travis Middle SchoolC-
Middle · Grades 6–8 · 18.1 mi
H
Calhoun High SchoolC+
High · Grades 9–12 · 18.6 mi

District: Calhoun County Independent School District

Neighborhood · ZIP 77982These 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.155
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 100.15

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.41%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.6.8%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.483
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$84,780
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$88,278
Average tempThe average temperature here across a full year.71°F
Annual precipHow much rain and melted snow falls here in a typical year.41 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.61%

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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

504 S 15th 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 more than 84% of homes in Calhoun County
  • Costs more per square foot than 94% of homes in Calhoun County
  • Smaller than 71% of homes in Port O Connor 77982
  • Has a smaller lot than 95% of homes in Calhoun County

What homes are worth in Port O Connor 77982

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

This home
$149K$1.7M

This home is worth more than 46% of homes in Port O Connor 77982.

How it measures up in Port O Connor 77982

The dot is this home. The mark in the middle is the typical home in Port O Connor 77982.

Estimated value$411,543
CheaperTypical $432,324Pricier

Pricier than 46% of homes nearby

Price per ft²$408
CheaperTypical $325Pricier

Pricier than 79% of homes nearby

Living area1,008 ft²
SmallerTypical 1,334 ft²Bigger

Bigger than 29% of homes nearby

Lot size0.1 ac
SmallerTypical 0.25 acBigger

Bigger than 7% of homes nearby

Year built1984
OlderTypical 2000Newer

Newer than 37% of homes nearby

How 504 S 15th St ranks against every home in each area.
MeasureThis homePort O Connor 77982Calhoun County
Estimated valuepricier than$411,54346% of homes84% of homes
Price per ft²pricier than$40879% of homes94% of homes
Living areabigger than1,008 ft²29% of homes31% of homes
Lot sizebigger than0.1 ac7% of homes5% of homes
Year builtnewer than198437% of homes53% of homes

About 504 S 15th St

How much is 504 S 15th St, Port O Connor, TX worth?

The TopHap Estimate for 504 S 15th St, Port O Connor, TX is $411,543 as of Aug 30, 2026. The likely range is $383,492 to $439,594. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 504 S 15th St, Port O Connor, TX last sell?

504 S 15th St, Port O Connor, TX last sold on Feb 13, 2025 for $49,575, according to the county's recorded deed.

How big is 504 S 15th St, Port O Connor, TX?

504 S 15th St, Port O Connor, TX has 2 bathrooms, 1,008 square feet of living space and a 0.10-acre lot.

When was 504 S 15th St, Port O Connor, TX built?

504 S 15th St, Port O Connor, TX was built in 1984, making it 42 years old.

What schools serve 504 S 15th St, Port O Connor, TX?

504 S 15th St, Port O Connor, TX is assigned to Port O Connor School (elementary), rated A+; Travis Middle School (middle), rated C-; Calhoun High School (high), rated C+. All sit in Calhoun County Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 504 S 15th St, Port O Connor, TX compare to other homes in Port O Connor 77982?

Among the 1,560 homes in Port O Connor 77982, it is worth more than 46% of them ($411,543 against a typical $432,324), its price per square foot is higher than 79% of them ($408 against a typical $325), it is bigger than 29% of them (1,008 ft² against a typical 1,334 ft²), its lot is bigger than 7% of them (0.1 ac against a typical 0.25 ac) and it is newer than 37% of them (1984 against a typical 2000). Measured against all of Calhoun County, it is worth more than 84% 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 504 S 15th St, Port O Connor, TX?

The 2026 property tax bill for 504 S 15th St, Port O Connor, TX was $6,083. The county assessed it at $323,750.

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