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Single Family ResidenceResidential
$231,888$104 / 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 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

603 SAINT JOHN ST

GONZALES, TX 78629
0
Baths
2,237 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.
0.24 ac
Lot SizeThe size of the land the home sits on, from county records.
1930
Year BuiltThe year the home was originally built, according to county records.

Valuation

$232K
$221K low$243K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,681 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$145,260 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$19,540
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$125,720
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$128,720
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$145,260

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.11 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.0.2 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
CountyGONZALES
Lot (acres)The size of the land the home sits on, from county records.0.24
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Window A/C
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 · 200 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
Gonzales Jr High SchoolD+
Middle · Grades 6–8 · 0.5 mi
E
Gonzales Elementary School
Elementary · Grades KG–2 · 1.1 mi
H
Gonzales High SchoolD-
High · Grades 9–12 · 1.7 mi

District: Gonzales Independent School District

Neighborhood · ZIP 78629These 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.116
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.23

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.81%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.10%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.13%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.11,738
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.27 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$60,442
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$87,201
Average tempThe average temperature here across a full year.69°F
Annual precipHow much rain and melted snow falls here in a typical year.37 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

603 Saint John 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 66% of homes in Gonzales 78629
  • Has a smaller lot than 79% of homes in Gonzales County
  • Older than 93% of homes in Gonzales County

What homes are worth in Gonzales 78629

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

This home
$92K$1M

This home is worth more than 34% of homes in Gonzales 78629.

How it measures up in Gonzales 78629

The dot is this home. The mark in the middle is the typical home in Gonzales 78629.

Estimated value$231,888
CheaperTypical $306,360Pricier

Pricier than 34% of homes nearby

Price per ft²$104
CheaperTypical $111Pricier

Pricier than 42% of homes nearby

Living area2,237 ft²
SmallerTypical 2,356 ft²Bigger

Bigger than 47% of homes nearby

Lot size0.24 ac
SmallerTypical 0.69 acBigger

Bigger than 25% of homes nearby

Year built1930
OlderTypical 1982Newer

Newer than 8% of homes nearby

How 603 Saint John St ranks against every home in each area.
MeasureThis homeGonzales 78629Gonzales County
Estimated valuepricier than$231,88834% of homes38% of homes
Price per ft²pricier than$10442% of homes45% of homes
Living areabigger than2,237 ft²47% of homes50% of homes
Lot sizebigger than0.24 ac25% of homes21% of homes
Year builtnewer than19308% of homes7% of homes

About 603 Saint John St

How much is 603 Saint John St, Gonzales, TX worth?

The TopHap Estimate for 603 Saint John St, Gonzales, TX is $231,888 as of Oct 21, 2026. The likely range is $220,721 to $243,055. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 603 Saint John St, Gonzales, TX last sell?

603 Saint John St, Gonzales, TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 603 Saint John St, Gonzales, TX?

603 Saint John St, Gonzales, TX has 2,237 square feet of living space and a 0.24-acre lot.

When was 603 Saint John St, Gonzales, TX built?

603 Saint John St, Gonzales, TX was built in 1930, making it 96 years old.

What schools serve 603 Saint John St, Gonzales, TX?

603 Saint John St, Gonzales, TX is assigned to Gonzales Jr High School (middle), rated D+; Gonzales Elementary School (elementary); Gonzales High School (high), rated D-. All sit in Gonzales Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 603 Saint John St, Gonzales, TX compare to other homes in Gonzales 78629?

Among the 5,554 homes in Gonzales 78629, it is worth more than 34% of them ($231,888 against a typical $306,360), its price per square foot is higher than 42% of them ($104 against a typical $111), it is bigger than 47% of them (2,237 ft² against a typical 2,356 ft²), its lot is bigger than 25% of them (0.24 ac against a typical 0.69 ac) and it is newer than 8% of them (1930 against a typical 1982). Measured against all of Gonzales County, it is worth more than 38% 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 603 Saint John St, Gonzales, TX?

The 2026 property tax bill for 603 Saint John St, Gonzales, TX was $2,681. The county assessed it at $145,260.

More homes on Saint John St

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