Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$203,279$170 / 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 Jul 14, 2026

40102 ONYX ST

SLIDELL, LA 70461
0
Baths
1,198 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.
1975
Year BuiltThe year the home was originally built, according to county records.

Valuation

$203K
$181K low$225K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,318 (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.$13,659 (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.$10,159
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$13,659
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$136,588

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.60 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.26%
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (Unspecified)

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 · 0.4 mi
E
Cypress Cove Elementary School
Elementary · Grades PK–1 · 1.7 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%

Owner Tools

Do you own this home?
Claim this home

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

40102 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 75% of homes in Slidell 70461
  • Costs more per square foot than 91% of homes in Slidell 70461
  • Smaller than 93% of homes in Slidell 70461
  • Older than 91% 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
$90K$783K

This home is worth more than 25% 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$203,279
CheaperTypical $261,347Pricier

Pricier than 25% of homes nearby

Price per ft²$170
CheaperTypical $128Pricier

Pricier than 91% of homes nearby

Living area1,198 ft²
SmallerTypical 2,065 ft²Bigger

Bigger than 7% of homes nearby

Year built1975
OlderTypical 2000Newer

Newer than 9% of homes nearby

How 40102 Onyx St ranks against every home in each area.
MeasureThis homeSlidell 70461Saint Tammany County
Estimated valuepricier than$203,27925% of homes26% of homes
Price per ft²pricier than$17091% of homes66% of homes
Living areabigger than1,198 ft²7% of homes10% of homes
Year builtnewer than19759% of homes13% of homes

About 40102 Onyx St

How much is 40102 Onyx St, Slidell, LA worth?

The TopHap Estimate for 40102 Onyx St, Slidell, LA is $203,279 as of Jul 14, 2026. The likely range is $181,420 to $225,138. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 40102 Onyx St, Slidell, LA last sell?

40102 Onyx St, Slidell, LA last sold on Oct 12, 2017, according to the county's recorded deed.

When was 40102 Onyx St, Slidell, LA built?

40102 Onyx St, Slidell, LA was built in 1975, making it 51 years old.

What schools serve 40102 Onyx St, Slidell, LA?

40102 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 40102 Onyx St, Slidell, LA compare to other homes in Slidell 70461?

Among the 11,840 homes in Slidell 70461, it is worth more than 25% of them ($203,279 against a typical $261,347), its price per square foot is higher than 91% of them ($170 against a typical $128), it is bigger than 7% of them (1,198 ft² against a typical 2,065 ft²) and it is newer than 9% of them (1975 against a typical 2000). Measured against all of Saint Tammany County, it is worth more than 26% 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 40102 Onyx St, Slidell, LA?

The 2025 property tax bill for 40102 Onyx St, Slidell, LA was $1,318. The county assessed it at $13,659.

More homes on Onyx St

Closest homes

More homes in Slidell 70461

Assigned schools

Explore the area

See this home in context

Open 40102 Onyx St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map