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Single Family ResidenceResidential
$104,742$101 / 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 91How 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

521 E LIBERTY ST

MERCEDES, TX 78570
3
Beds
2
Baths
1,040 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.
0.26 ac
Lot SizeThe size of the land the home sits on, from county records.
1983
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$105K
$95K low$114K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,386 (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.$90,710 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$82,464
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$114,659

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.7 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.1989
Lot (acres)The size of the land the home sits on, from county records.0.26
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
CoolingThe type of cooling or air conditioning in the home.Yes
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

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

E
John F. Kennedy Elementary SchoolD-
Elementary · Grades PK–5 · 0.8 mi
H
Mercedes High SchoolF
High · Grades 9–12 · 1.1 mi
M
Sgt. William G. Harrell Middle SchoolF
Middle · Grades 6–8 · 1.7 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%

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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

521 E Liberty 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 88% of homes in Hidalgo County
  • Costs less per square foot than 80% of homes in Hidalgo County
  • Smaller than 78% of homes in Hidalgo County
  • Has a bigger lot than 67% of homes in Hidalgo County
  • Older than 78% of homes in Hidalgo County

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
$48K$361K

This home is worth more than 35% 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$104,742
CheaperTypical $128,401Pricier

Pricier than 35% of homes nearby

Price per ft²$101
CheaperTypical $95Pricier

Pricier than 58% of homes nearby

Living area1,040 ft²
SmallerTypical 1,240 ft²Bigger

Bigger than 32% of homes nearby

Lot size0.26 ac
SmallerTypical 0.21 acBigger

Bigger than 57% of homes nearby

Year built1983
OlderTypical 1990Newer

Newer than 34% of homes nearby

How 521 E Liberty St ranks against every home in each area.
MeasureThis homeMercedes 78570Hidalgo County
Estimated valuepricier than$104,74235% of homes12% of homes
Price per ft²pricier than$10158% of homes20% of homes
Living areabigger than1,040 ft²32% of homes22% of homes
Lot sizebigger than0.26 ac57% of homes67% of homes
Year builtnewer than198334% of homes22% of homes

About 521 E Liberty St

How much is 521 E Liberty St, Mercedes, TX worth?

The TopHap Estimate for 521 E Liberty St, Mercedes, TX is $104,742 as of Sep 24, 2026. The likely range is $95,304 to $114,180. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 521 E Liberty St, Mercedes, TX last sell?

521 E Liberty St, Mercedes, TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 521 E Liberty St, Mercedes, TX?

521 E Liberty St, Mercedes, TX has 3 bedrooms, 2 bathrooms, 1,040 square feet of living space and a 0.26-acre lot.

When was 521 E Liberty St, Mercedes, TX built?

521 E Liberty St, Mercedes, TX was built in 1983, making it 43 years old. The building has 1 story.

What schools serve 521 E Liberty St, Mercedes, TX?

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

How does 521 E Liberty St, Mercedes, TX compare to other homes in Mercedes 78570?

Among the 10,013 homes in Mercedes 78570, it is worth more than 35% of them ($104,742 against a typical $128,401), its price per square foot is higher than 58% of them ($101 against a typical $95), it is bigger than 32% of them (1,040 ft² against a typical 1,240 ft²), its lot is bigger than 57% of them (0.26 ac against a typical 0.21 ac) and it is newer than 34% of them (1983 against a typical 1990). Measured against all of Hidalgo County, it is worth more than 12% 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 521 E Liberty St, Mercedes, TX?

The 2025 property tax bill for 521 E Liberty St, Mercedes, TX was $1,386. The county assessed it at $90,710.

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