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Single Family ResidenceResidential
$203,360$180 / 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 82How 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
Last sold for $17,300 on Mar 22, 2022

40150 ONYX ST

SLIDELL, LA 70461
0
Baths
1,128 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.
1992
Year BuiltThe year the home was originally built, according to county records.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$203K
$166K low$241K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$17,300 · Mar 22, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$509 (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.$10,968 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$3,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$7,468
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$10,968
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$109,680

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.32 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.52%
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.area not mapped

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
CountySaint Tammany
HeatingThe type of heating system in the home.None

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
Boyet Junior High SchoolB
Middle · Grades 7–8 · 0.5 mi
E
Cypress Cove Elementary School
Elementary · Grades PK–1 · 1.6 mi
H
Northshore High SchoolA
High · Grades 9–12 · 1.8 mi

District: St. Tammany Parish School District

Neighborhood · ZIP 70461These 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.97
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 100.27

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
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.31,940
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.299 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$89,933
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$117,701
Average tempThe average temperature here across a full year.68°F
Annual precipHow much rain and melted snow falls here in a typical year.64 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

40150 Onyx 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 76% of homes in Slidell 70461
  • Costs more per square foot than 93% of homes in Slidell 70461
  • Smaller than 94% of homes in Slidell 70461
  • Older than 67% of homes in Slidell 70461

What homes are worth in Slidell 70461

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

This home
$94K$770K

This home is worth more than 24% of homes in Slidell 70461.

How it measures up in Slidell 70461

The dot is this home. The mark in the middle is the typical home in Slidell 70461.

Estimated value$203,360
CheaperTypical $261,600Pricier

Pricier than 24% of homes nearby

Price per ft²$180
CheaperTypical $129Pricier

Pricier than 93% of homes nearby

Living area1,128 ft²
SmallerTypical 2,065 ft²Bigger

Bigger than 6% of homes nearby

Year built1992
OlderTypical 2000Newer

Newer than 33% of homes nearby

How 40150 Onyx St ranks against every home in each area.
MeasureThis homeSlidell 70461Saint Tammany County
Estimated valuepricier than$203,36024% of homes27% of homes
Price per ft²pricier than$18093% of homes76% of homes
Living areabigger than1,128 ft²6% of homes8% of homes
Year builtnewer than199233% of homes37% of homes

About 40150 Onyx St

How much is 40150 Onyx St, Slidell, LA worth?

The TopHap Estimate for 40150 Onyx St, Slidell, LA is $203,360 as of Aug 30, 2026. The likely range is $166,085 to $240,635. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 40150 Onyx St, Slidell, LA last sell?

40150 Onyx St, Slidell, LA last sold on Mar 22, 2022 for $17,300, according to the county's recorded deed.

When was 40150 Onyx St, Slidell, LA built?

40150 Onyx St, Slidell, LA was built in 1992, making it 34 years old.

What schools serve 40150 Onyx St, Slidell, LA?

40150 Onyx St, Slidell, LA is assigned to Boyet Junior High School (middle), rated B; Cypress Cove Elementary School (elementary); Northshore High School (high), rated A. All sit in St. Tammany Parish School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 40150 Onyx St, Slidell, LA compare to other homes in Slidell 70461?

Among the 11,840 homes in Slidell 70461, it is worth more than 24% of them ($203,360 against a typical $261,600), its price per square foot is higher than 93% of them ($180 against a typical $129), it is bigger than 6% of them (1,128 ft² against a typical 2,065 ft²) and it is newer than 33% of them (1992 against a typical 2000). Measured against all of Saint Tammany County, it is worth more than 27% 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 40150 Onyx St, Slidell, LA?

The 2025 property tax bill for 40150 Onyx St, Slidell, LA was $509. The county assessed it at $10,968.

More homes on Onyx St

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Assigned schools

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