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Single Family ResidenceResidential
$381,772$126 / 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 90How 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

21 ALVARADO AVE

RANCHO VIEJO, TX 78575
3
Beds
3
Baths
3,021 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.
0.43 ac
Lot SizeThe size of the land the home sits on, from county records.
1982
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$382K
$345K low$418K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,945 (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.$265,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$176,540
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$88,460
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$272,345
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$265,000

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.67
94
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.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.76 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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
CountyCAMERON
Lot (acres)The size of the land the home sits on, from county records.0.43
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.Garage, Attached
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 · 495 ft²

Transaction History(5)

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
Villareal Elementary SchoolC+
Elementary · Grades PK–5 · 1.6 mi
M
Resaca Middle SchoolB
Middle · Grades 6–8 · 4.0 mi
H
Los Fresnos High SchoolB-
High · Grades 9–12 · 5.7 mi

District: Los Fresnos Consolidated 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

21 Alvarado 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 more than 90% of homes in Cameron County
  • Costs less per square foot than 76% of homes in Olmito 78575
  • Bigger than 95% of homes in Cameron County
  • Has a bigger lot than 76% 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
$109K$950K

This home is worth more than 74% 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$381,772
CheaperTypical $283,006Pricier

Pricier than 74% of homes nearby

Price per ft²$126
CheaperTypical $150Pricier

Pricier than 24% of homes nearby

Living area3,021 ft²
SmallerTypical 1,953 ft²Bigger

Bigger than 83% of homes nearby

Lot size0.43 ac
SmallerTypical 0.35 acBigger

Bigger than 67% of homes nearby

Year built1982
OlderTypical 1984Newer

Newer than 45% of homes nearby

How 21 Alvarado Ave ranks against every home in each area.
MeasureThis homeOlmito 78575Cameron County
Estimated valuepricier than$381,77274% of homes90% of homes
Price per ft²pricier than$12624% of homes38% of homes
Living areabigger than3,021 ft²83% of homes95% of homes
Lot sizebigger than0.43 ac67% of homes76% of homes
Year builtnewer than198245% of homes36% of homes

About 21 Alvarado Ave

How much is 21 Alvarado Ave, Rancho Viejo, TX worth?

The TopHap Estimate for 21 Alvarado Ave, Rancho Viejo, TX is $381,772 as of Aug 30, 2026. The likely range is $345,222 to $418,322. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Alvarado Ave, Rancho Viejo, TX last sell?

21 Alvarado Ave, Rancho Viejo, TX last sold on Sep 9, 2021, according to the county's recorded deed.

How big is 21 Alvarado Ave, Rancho Viejo, TX?

21 Alvarado Ave, Rancho Viejo, TX has 3 bedrooms, 3 bathrooms, 3,021 square feet of living space and a 0.43-acre lot.

When was 21 Alvarado Ave, Rancho Viejo, TX built?

21 Alvarado Ave, Rancho Viejo, TX was built in 1982, making it 44 years old. The building has 1 story.

What schools serve 21 Alvarado Ave, Rancho Viejo, TX?

21 Alvarado Ave, Rancho Viejo, TX is assigned to Villareal Elementary School (elementary), rated C+; Resaca Middle School (middle), rated B; Los Fresnos High School (high), rated B-. All sit in Los Fresnos Consolidated Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Alvarado Ave, Rancho Viejo, TX compare to other homes in Olmito 78575?

Among the 2,137 homes in Olmito 78575, it is worth more than 74% of them ($381,772 against a typical $283,006), its price per square foot is higher than 24% of them ($126 against a typical $150), it is bigger than 83% of them (3,021 ft² against a typical 1,953 ft²), its lot is bigger than 67% of them (0.43 ac against a typical 0.35 ac) and it is newer than 45% of them (1982 against a typical 1984). Measured against all of Cameron County, it is worth more than 90% 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 21 Alvarado Ave, Rancho Viejo, TX?

The 2025 property tax bill for 21 Alvarado Ave, Rancho Viejo, TX was $3,945. The county assessed it at $265,000.

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Assigned schools

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