Skip to content
Skip to content
TopHapOpen in map
Rural ResidenceResidential
$41,529
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 85How 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 $14,900 on Jul 23, 2009

PORTER GRADE RD

ALTHA, FL 32421
0
Baths
10 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$42K
$36K low$48K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$14,900 · Jul 23, 2009

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$26 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$1,720 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,720
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,720
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$15,000

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.22 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.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.Rural Residence
CountyCalhoun
Lot (acres)The size of the land the home sits on, from county records.10.00
HeatingThe type of heating system in the home.None
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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
Carr Elementary & Middle SchoolA-
Elementary · Grades PK–8 · 4.6 mi
H
Altha Public SchoolC+
High · Grades KG–12 · 10.2 mi

District: Calhoun County School District

Neighborhood · ZIP 32421These 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.109
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.72
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.19

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.11%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.24%
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.4,395
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.30 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$47,871
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$60,113
Average tempThe average temperature here across a full year.67°F
Annual precipHow much rain and melted snow falls here in a typical year.61 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.60%

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

Porter Grade Rd 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 97% of homes in Altha 32421
  • Has a bigger lot than 80% of homes in Calhoun County

What homes are worth in Altha 32421

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

This home
$38K$491K

This home is worth more than 3% of homes in Altha 32421.

How it measures up in Altha 32421

The dot is this home. The mark in the middle is the typical home in Altha 32421.

Estimated value$41,529
CheaperTypical $150,749Pricier

Pricier than 3% of homes nearby

Lot size10 ac
SmallerTypical 3 acBigger

Bigger than 75% of homes nearby

How Porter Grade Rd ranks against every home in each area.
MeasureThis homeAltha 32421Calhoun County
Estimated valuepricier than$41,5293% of homes4% of homes
Lot sizebigger than10 ac75% of homes80% of homes

About Porter Grade Rd

How much is Porter Grade Rd, Altha, FL worth?

The TopHap Estimate for Porter Grade Rd, Altha, FL is $41,529 as of Aug 30, 2026. The likely range is $35,502 to $47,556. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did Porter Grade Rd, Altha, FL last sell?

Porter Grade Rd, Altha, FL last sold on Jul 23, 2009 for $14,900, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

What schools serve Porter Grade Rd, Altha, FL?

Porter Grade Rd, Altha, FL is assigned to Carr Elementary & Middle School (elementary), rated A-; Altha Public School (high), rated C+. All sit in Calhoun County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does Porter Grade Rd, Altha, FL compare to other homes in Altha 32421?

Among the 1,895 homes in Altha 32421, it is worth more than 3% of them ($41,529 against a typical $150,749) and its lot is bigger than 75% of them (10 ac against a typical 3 ac). Measured against all of Calhoun County, it is worth more than 4% 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 Porter Grade Rd, Altha, FL?

The 2024 property tax bill for Porter Grade Rd, Altha, FL was $26. The county assessed it at $1,720.

More homes on Porter Grade Rd

Closest homes

More homes in Altha 32421

Assigned schools

Explore the area

See this home in context

Open Porter Grade Rd 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