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Single Family ResidenceResidential
$99,293$90 / 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 87How 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

4000 21ST ST

GULFPORT, MS 39501
0
Baths
1,105 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.
1940
Year BuiltThe year the home was originally built, according to county records.

Valuation

$99K
$86K low$113K high

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$5,805 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$5,539
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$58,054

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.120 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.48%
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
CountyHarrison
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.1950
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Block (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Forced Air
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.Deck · 96 ft²

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

E
West Elementary SchoolB-
Elementary · Grades KG–5 · 0.5 mi
M
Gulfport Central Middle SchoolC-
Middle · Grades 6–8 · 0.6 mi
H
Gulfport High SchoolB
High · Grades 9–12 · 4.2 mi

District: Gulfport School District

Neighborhood · ZIP 39501These 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.145
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.26

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.8.2%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.38%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.5%
PopulationHow many people live in this area.21,266
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,299 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$36,040
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$46,742
Average tempThe average temperature here across a full year.68°F
Annual precipHow much rain and melted snow falls here in a typical year.66 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.61%

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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

4000 21st 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 95% of homes in Harrison County
  • Costs less per square foot than 89% of homes in Harrison County
  • Smaller than 89% of homes in Harrison County
  • Older than 95% of homes in Harrison County

What homes are worth in Gulfport 39501

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

This home
$51K$561K

This home is worth more than 33% of homes in Gulfport 39501.

How it measures up in Gulfport 39501

The dot is this home. The mark in the middle is the typical home in Gulfport 39501.

Estimated value$99,293
CheaperTypical $121,733Pricier

Pricier than 33% of homes nearby

Price per ft²$90
CheaperTypical $91Pricier

Pricier than 49% of homes nearby

Living area1,105 ft²
SmallerTypical 1,325 ft²Bigger

Bigger than 27% of homes nearby

Year built1940
OlderTypical 1960Newer

Newer than 20% of homes nearby

How 4000 21st St ranks against every home in each area.
MeasureThis homeGulfport 39501Harrison County
Estimated valuepricier than$99,29333% of homes5% of homes
Price per ft²pricier than$9049% of homes11% of homes
Living areabigger than1,105 ft²27% of homes11% of homes
Year builtnewer than194020% of homes5% of homes

About 4000 21st St

How much is 4000 21st St, Gulfport, MS worth?

The TopHap Estimate for 4000 21st St, Gulfport, MS is $99,293 as of Sep 24, 2026. The likely range is $86,071 to $112,515. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4000 21st St, Gulfport, MS last sell?

4000 21st St, Gulfport, MS last sold on Mar 7, 2003, according to the county's recorded deed.

When was 4000 21st St, Gulfport, MS built?

4000 21st St, Gulfport, MS was built in 1940, making it 86 years old.

What schools serve 4000 21st St, Gulfport, MS?

4000 21st St, Gulfport, MS is assigned to West Elementary School (elementary), rated B-; Gulfport Central Middle School (middle), rated C-; Gulfport High School (high), rated B. All sit in Gulfport School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4000 21st St, Gulfport, MS compare to other homes in Gulfport 39501?

Among the 7,307 homes in Gulfport 39501, it is worth more than 33% of them ($99,293 against a typical $121,733), its price per square foot is higher than 49% of them ($90 against a typical $91), it is bigger than 27% of them (1,105 ft² against a typical 1,325 ft²) and it is newer than 20% of them (1940 against a typical 1960). Measured against all of Harrison County, it is worth more than 5% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on 21st St

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Assigned schools

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