Skip to content
Skip to content
TopHapOpen in map
Vacant LandVacant Land
$350,364
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 74How 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

1ST ST

PORT ISABEL, TX 78578
0
Baths
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1980
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$350K
$259K low$441K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,634 (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.$119,931 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$119,364
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$567
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$98,466
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$119,931

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.57
99
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
98
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
40
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
47
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.65 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.96%
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.Vacant Land
CountyCAMERON
Lot (acres)The size of the land the home sits on, from county records.0.18
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 · 77 ft²

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

E
Garriga Elementary SchoolC
Elementary · Grades PK–5 · 0.9 mi
M
Port Isabel Jr High SchoolC-
Middle · Grades 6–8 · 1.2 mi
H
Port Isabel Early College High SchoolD+
High · Grades 9–12 · 1.4 mi

District: Point Isabel Independent School District

Neighborhood · ZIP 78578These 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.159
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.78
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.10

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.81%
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.16%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.8,208
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.164 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$55,542
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$93,729
Average tempThe average temperature here across a full year.74°F
Annual precipHow much rain and melted snow falls here in a typical year.30 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.60%

Owner Tools

Do you own this home?
Claim this home

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

1st 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 87% of homes in Cameron County
  • Has a bigger lot than 68% of homes in Port Isabel 78578
  • Older than 73% of homes in Port Isabel 78578

What homes are worth in Port Isabel 78578

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

This home
$135K$736K

This home is worth more than 62% of homes in Port Isabel 78578.

How it measures up in Port Isabel 78578

The dot is this home. The mark in the middle is the typical home in Port Isabel 78578.

Estimated value$350,364
CheaperTypical $299,096Pricier

Pricier than 62% of homes nearby

Lot size0.18 ac
SmallerTypical 0.14 acBigger

Bigger than 68% of homes nearby

Year built1980
OlderTypical 1996Newer

Newer than 27% of homes nearby

How 1st St ranks against every home in each area.
MeasureThis homePort Isabel 78578Cameron County
Estimated valuepricier than$350,36462% of homes87% of homes
Lot sizebigger than0.18 ac68% of homes53% of homes
Year builtnewer than198027% of homes33% of homes

About 1st St

How much is 1st St, Port Isabel, TX worth?

The TopHap Estimate for 1st St, Port Isabel, TX is $350,364 as of Jul 14, 2026. The likely range is $259,426 to $441,302. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1st St, Port Isabel, TX last sell?

1st St, Port Isabel, TX last sold on Aug 21, 2017, according to the county's recorded deed.

When was 1st St, Port Isabel, TX built?

1st St, Port Isabel, TX was built in 1980, making it 46 years old. The building has 1 story.

What schools serve 1st St, Port Isabel, TX?

1st St, Port Isabel, TX is assigned to Garriga Elementary School (elementary), rated C; Port Isabel Jr High School (middle), rated C-; Port Isabel Early College High School (high), rated D+. All sit in Point Isabel Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1st St, Port Isabel, TX compare to other homes in Port Isabel 78578?

Among the 5,374 homes in Port Isabel 78578, it is worth more than 62% of them ($350,364 against a typical $299,096), its lot is bigger than 68% of them (0.18 ac against a typical 0.14 ac) and it is newer than 27% of them (1980 against a typical 1996). Measured against all of Cameron County, it is worth more than 87% 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 1st St, Port Isabel, TX?

The 2025 property tax bill for 1st St, Port Isabel, TX was $2,634. The county assessed it at $119,931.

More homes on 1st St

Closest homes

More homes in Port Isabel 78578

Assigned schools

Explore the area

See this home in context

Open 1st St 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