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Single Family ResidenceResidential
$153,571$70 / 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 Sep 24, 2026

1518 HEREFORD ST

MERCEDES, TX 78570
3
Beds
1
Baths
2,186 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.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$154K
$143K low$164K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,714 (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.$112,157 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$101,961
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$197,086

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.53 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
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2012
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 · 40 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.

M
Sgt. William G. Harrell Middle SchoolF
Middle · Grades 6–8 · 0.7 mi
E
John F. Kennedy Elementary SchoolD-
Elementary · Grades PK–5 · 1.7 mi
H
Mercedes High SchoolF
High · Grades 9–12 · 2.5 mi

District: Mercedes Independent School District

Neighborhood · ZIP 78570These 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.107
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
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.87%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.7.8%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.32%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.34,018
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.391 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$40,415
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$53,855
Average tempThe average temperature here across a full year.74°F
Annual precipHow much rain and melted snow falls here in a typical year.25 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

1518 Hereford 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 less than 68% of homes in Hidalgo County
  • Costs less per square foot than 96% of homes in Hidalgo County
  • Bigger than 88% of homes in Mercedes 78570
  • Has a smaller lot than 80% of homes in Mercedes 78570
  • Newer than 71% of homes in Mercedes 78570

What homes are worth in Mercedes 78570

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

This home
$49K$371K

This home is worth more than 63% of homes in Mercedes 78570.

How it measures up in Mercedes 78570

The dot is this home. The mark in the middle is the typical home in Mercedes 78570.

Estimated value$153,571
CheaperTypical $128,893Pricier

Pricier than 63% of homes nearby

Price per ft²$70
CheaperTypical $95Pricier

Pricier than 15% of homes nearby

Living area2,186 ft²
SmallerTypical 1,248 ft²Bigger

Bigger than 88% of homes nearby

Lot size0.15 ac
SmallerTypical 0.21 acBigger

Bigger than 20% of homes nearby

Year built2004
OlderTypical 1990Newer

Newer than 71% of homes nearby

How 1518 Hereford St ranks against every home in each area.
MeasureThis homeMercedes 78570Hidalgo County
Estimated valuepricier than$153,57163% of homes32% of homes
Price per ft²pricier than$7015% of homes4% of homes
Living areabigger than2,186 ft²88% of homes81% of homes
Lot sizebigger than0.15 ac20% of homes32% of homes
Year builtnewer than200471% of homes65% of homes

About 1518 Hereford St

How much is 1518 Hereford St, Mercedes, TX worth?

The TopHap Estimate for 1518 Hereford St, Mercedes, TX is $153,571 as of Sep 24, 2026. The likely range is $143,367 to $163,775. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1518 Hereford St, Mercedes, TX last sell?

1518 Hereford St, Mercedes, TX last sold on Jun 23, 2008, according to the county's recorded deed.

How big is 1518 Hereford St, Mercedes, TX?

1518 Hereford St, Mercedes, TX has 3 bedrooms, 1 bathrooms, 2,186 square feet of living space and a 0.15-acre lot.

When was 1518 Hereford St, Mercedes, TX built?

1518 Hereford St, Mercedes, TX was built in 2004, making it 22 years old. The building has 2 stories.

What schools serve 1518 Hereford St, Mercedes, TX?

1518 Hereford St, Mercedes, TX is assigned to Sgt. William G. Harrell Middle School (middle), rated F; John F. Kennedy Elementary School (elementary), rated D-; Mercedes High School (high), rated F. All sit in Mercedes Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1518 Hereford St, Mercedes, TX compare to other homes in Mercedes 78570?

Among the 10,013 homes in Mercedes 78570, it is worth more than 63% of them ($153,571 against a typical $128,893), its price per square foot is higher than 15% of them ($70 against a typical $95), it is bigger than 88% of them (2,186 ft² against a typical 1,248 ft²), its lot is bigger than 20% of them (0.15 ac against a typical 0.21 ac) and it is newer than 71% of them (2004 against a typical 1990). Measured against all of Hidalgo County, it is worth more than 32% 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 1518 Hereford St, Mercedes, TX?

The 2025 property tax bill for 1518 Hereford St, Mercedes, TX was $1,714. The county assessed it at $112,157.

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