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Rural ResidenceResidential
$287,207
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

FM 521

BRAZORIA, TX 77422
0
Baths
26.76 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$287K
$261K low$313K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$193 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$16,990 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$16,990
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$11,790
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$416,730

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.72 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.71%

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Rural Residence
CountyBrazoria
Lot (acres)The size of the land the home sits on, from county records.26.77
HeatingThe type of heating system in the home.None
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.

M
Sweeny Jr High SchoolC+
Middle · Grades 6–8 · 6.3 mi
E
Sweeny Elementary SchoolC
Elementary · Grades PK–5 · 6.5 mi
H
Sweeny High SchoolB
High · Grades 9–12 · 6.6 mi

District: Sweeny Independent School District

Neighborhood · ZIP 77422These 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.136
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.14

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.86%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.17,079
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.91 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$69,282
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$90,024
Average tempThe average temperature here across a full year.70°F
Annual precipHow much rain and melted snow falls here in a typical year.51 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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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

Fm 521 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.

  • Among the largest lots in Brazoria County

What homes are worth in Brazoria 77422

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

This home
$97K$719K

This home is worth more than 61% of homes in Brazoria 77422.

How it measures up in Brazoria 77422

The dot is this home. The mark in the middle is the typical home in Brazoria 77422.

Estimated value$287,207
CheaperTypical $251,179Pricier

Pricier than 61% of homes nearby

Lot size26.76 ac
SmallerTypical 0.97 acBigger

Bigger than almost all homes nearby

How Fm 521 ranks against every home in each area.
MeasureThis homeBrazoria 77422Brazoria County
Estimated valuepricier than$287,20761% of homes36% of homes
Lot sizebigger than26.76 acalmost all homesalmost all homes

About Fm 521

How much is Fm 521, Brazoria, TX worth?

The TopHap Estimate for Fm 521, Brazoria, TX is $287,207 as of Sep 24, 2026. The likely range is $260,963 to $313,451. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

What schools serve Fm 521, Brazoria, TX?

Fm 521, Brazoria, TX is assigned to Sweeny Jr High School (middle), rated C+; Sweeny Elementary School (elementary), rated C; Sweeny High School (high), rated B. All sit in Sweeny Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does Fm 521, Brazoria, TX compare to other homes in Brazoria 77422?

Among the 6,001 homes in Brazoria 77422, it is worth more than 61% of them ($287,207 against a typical $251,179) and its lot is bigger than almost all of them (26.76 ac against a typical 0.97 ac). Measured against all of Brazoria County, it is worth more than 36% 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 Fm 521, Brazoria, TX?

The 2024 property tax bill for Fm 521, Brazoria, TX was $193. The county assessed it at $16,990.

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Assigned schools

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