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Single Family ResidenceResidential
$191,175$108 / 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 Sep 24, 2026

3509 CARMEN AVE

RANCHO VIEJO, TX 78575
0
Baths
1,765 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.
0.39 ac
Lot SizeThe size of the land the home sits on, from county records.
1975
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$191K
$170K low$212K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,668 (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.$151,694 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$137,904
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$225,283

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.48
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
57
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
99
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
39
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.

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
CountyCAMERON
Lot (acres)The size of the land the home sits on, from county records.0.39
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 · 580 ft²

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

M
Charles Stillman Middle SchoolB+
Middle · Grades 6–8 · 5.0 mi
E
Villa Nueva Elementary SchoolC-
Elementary · Grades KG–5 · 5.3 mi
H
Veterans Memorial Early College High SchoolB+
High · Grades 9–12 · 5.7 mi

District: Brownsville Independent School District

Neighborhood · ZIP 78575These 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.108
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.79
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.13

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.83%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
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.4,688
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.636 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$73,538
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$99,513
Average tempThe average temperature here across a full year.74°F
Annual precipHow much rain and melted snow falls here in a typical year.27 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

3509 Carmen Ave 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 75% of homes in Olmito 78575
  • Costs less per square foot than 90% of homes in Olmito 78575
  • Bigger than 72% of homes in Cameron County
  • Has a bigger lot than 75% of homes in Cameron County
  • Older than 78% of homes in Cameron County

What homes are worth in Olmito 78575

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

This home
$112K$956K

This home is worth more than 25% of homes in Olmito 78575.

How it measures up in Olmito 78575

The dot is this home. The mark in the middle is the typical home in Olmito 78575.

Estimated value$191,175
CheaperTypical $281,741Pricier

Pricier than 25% of homes nearby

Price per ft²$108
CheaperTypical $147Pricier

Pricier than 10% of homes nearby

Living area1,765 ft²
SmallerTypical 1,953 ft²Bigger

Bigger than 40% of homes nearby

Lot size0.39 ac
SmallerTypical 0.34 acBigger

Bigger than 59% of homes nearby

Year built1975
OlderTypical 1984Newer

Newer than 25% of homes nearby

How 3509 Carmen Ave ranks against every home in each area.
MeasureThis homeOlmito 78575Cameron County
Estimated valuepricier than$191,17525% of homes47% of homes
Price per ft²pricier than$10810% of homes22% of homes
Living areabigger than1,765 ft²40% of homes72% of homes
Lot sizebigger than0.39 ac59% of homes75% of homes
Year builtnewer than197525% of homes22% of homes

About 3509 Carmen Ave

How much is 3509 Carmen Ave, Rancho Viejo, TX worth?

The TopHap Estimate for 3509 Carmen Ave, Rancho Viejo, TX is $191,175 as of Sep 24, 2026. The likely range is $170,343 to $212,007. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3509 Carmen Ave, Rancho Viejo, TX last sell?

3509 Carmen Ave, Rancho Viejo, TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 3509 Carmen Ave, Rancho Viejo, TX?

3509 Carmen Ave, Rancho Viejo, TX has 1,765 square feet of living space and a 0.39-acre lot.

When was 3509 Carmen Ave, Rancho Viejo, TX built?

3509 Carmen Ave, Rancho Viejo, TX was built in 1975, making it 51 years old. The building has 2 stories.

What schools serve 3509 Carmen Ave, Rancho Viejo, TX?

3509 Carmen Ave, Rancho Viejo, TX is assigned to Charles Stillman Middle School (middle), rated B+; Villa Nueva Elementary School (elementary), rated C-; Veterans Memorial Early College High School (high), rated B+. All sit in Brownsville Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3509 Carmen Ave, Rancho Viejo, TX compare to other homes in Olmito 78575?

Among the 2,137 homes in Olmito 78575, it is worth more than 25% of them ($191,175 against a typical $281,741), its price per square foot is higher than 10% of them ($108 against a typical $147), it is bigger than 40% of them (1,765 ft² against a typical 1,953 ft²), its lot is bigger than 59% of them (0.39 ac against a typical 0.34 ac) and it is newer than 25% of them (1975 against a typical 1984). Measured against all of Cameron County, it is worth more than 47% 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 3509 Carmen Ave, Rancho Viejo, TX?

The 2025 property tax bill for 3509 Carmen Ave, Rancho Viejo, TX was $1,668. The county assessed it at $151,694.

More homes on Carmen Ave

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More homes in Rancho Viejo 78575

Assigned schools

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