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Single Family ResidenceResidential
$241,612$236 / 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 89How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

391 W 21ST ST

RIVIERA BEACH, FL 33404
3
Beds
1
Baths
1,025 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.
0.19 ac
Lot SizeThe size of the land the home sits on, from county records.
1973
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$242K
$215K low$268K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,967 (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.$215,115 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$100,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$115,115
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$200,661
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$215,115

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.13 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.minimal

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
CountyPalm Beach
Lot (acres)The size of the land the home sits on, from county records.0.19
ConstructionThe main material the home's frame and walls are built from.Concrete Blocks
RoofThe main material covering the roof, such as asphalt shingle or tile.Tile
HeatingThe type of heating system in the home.Forced Air
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

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.

E
Lincoln Elementary SchoolC
Elementary · Grades PK–5 · 0.8 mi
M
John F. Kennedy Middle SchoolC
Middle · Grades 6–8 · 1.3 mi
H
William T. Dwyer High SchoolB
High · Grades 9–12 · 7.3 mi

District: Palm Beach County School District

Neighborhood · ZIP 33404These 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.138
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.12

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.80%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.17%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.35,366
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,305 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$64,192
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$87,447
Average tempThe average temperature here across a full year.75°F
Annual precipHow much rain and melted snow falls here in a typical year.60 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.66%

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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

391 W 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 86% of homes in West Palm Beach 33404
  • Costs more per square foot than 70% of homes in Park Manor
  • Smaller than 85% of homes in Park Manor
  • Has a bigger lot than 73% of homes in Park Manor
  • Newer than 96% of homes in Park Manor

What homes are worth in West Palm Beach 33404

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

This home
$175K$3.5M

This home is worth more than 14% of homes in West Palm Beach 33404.

How it measures up in West Palm Beach 33404

The dot is this home. The mark in the middle is the typical home in West Palm Beach 33404.

Estimated value$241,612
CheaperTypical $378,145Pricier

Pricier than 14% of homes nearby

Price per ft²$236
CheaperTypical $303Pricier

Pricier than 32% of homes nearby

Living area1,025 ft²
SmallerTypical 1,404 ft²Bigger

Bigger than 19% of homes nearby

Lot size0.19 ac
SmallerTypical 0.17 acBigger

Bigger than 62% of homes nearby

Year built1973
OlderTypical 1975Newer

Newer than 46% of homes nearby

How 391 W 21st St ranks against every home in each area.
MeasureThis homePark ManorWest Palm Beach 33404Palm Beach County
Estimated valuepricier than$241,61222% of homes14% of homes19% of homes
Price per ft²pricier than$23670% of homes32% of homes31% of homes
Living areabigger than1,025 ft²15% of homes19% of homes16% of homes
Lot sizebigger than0.19 ac73% of homes62% of homes44% of homes
Year builtnewer than197396% of homes46% of homes21% of homes

About 391 W 21st St

How much is 391 W 21st St, Riviera Beach, FL worth?

The TopHap Estimate for 391 W 21st St, Riviera Beach, FL is $241,612 as of Aug 30, 2026. The likely range is $214,898 to $268,326. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 391 W 21st St, Riviera Beach, FL?

391 W 21st St, Riviera Beach, FL has 3 bedrooms, 1 bathrooms, 1,025 square feet of living space and a 0.19-acre lot.

When was 391 W 21st St, Riviera Beach, FL built?

391 W 21st St, Riviera Beach, FL was built in 1973, making it 53 years old. The building has 1 story.

What schools serve 391 W 21st St, Riviera Beach, FL?

391 W 21st St, Riviera Beach, FL is assigned to Lincoln Elementary School (elementary), rated C; John F. Kennedy Middle School (middle), rated C; William T. Dwyer High School (high), rated B. All sit in Palm Beach County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 391 W 21st St, Riviera Beach, FL compare to other homes in West Palm Beach 33404?

Among the 13,272 homes in West Palm Beach 33404, it is worth more than 14% of them ($241,612 against a typical $378,145), its price per square foot is higher than 32% of them ($236 against a typical $303), it is bigger than 19% of them (1,025 ft² against a typical 1,404 ft²), its lot is bigger than 62% of them (0.19 ac against a typical 0.17 ac) and it is newer than 46% of them (1973 against a typical 1975). Measured against all of Palm Beach County, it is worth more than 19% 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 391 W 21st St, Riviera Beach, FL?

The 2025 property tax bill for 391 W 21st St, Riviera Beach, FL was $3,967. The county assessed it at $215,115.

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