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Rural ResidenceResidential
$279,321$137 / 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
Last sold for $174,138 on Aug 29, 2018

MAD RIVER, CA
1
Baths
2,040 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.
40 ac
Lot SizeThe size of the land the home sits on, from county records.
1990
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$279K
$247K low$311K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$174,138 · Aug 29, 2018
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$279,321
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$223,457

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,653 (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.$250,987 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$195,213
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$55,774
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$250,987

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.97 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.Rural Residence
CountyHumboldt
Lot (acres)The size of the land the home sits on, from county records.40.00
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
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(2)

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.

H
Southern Trinity High School
High · Grades 9–12 · 4.5 mi
E
Van Duzen Elementary SchoolA
Elementary · Grades KG–8 · 4.5 mi

District: Southern Trinity Joint Unified School District

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.No

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

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 81% of homes in Humboldt County
  • Costs less per square foot than 98% of homes in Humboldt County
  • Bigger than 80% of homes in Humboldt County
  • Has a bigger lot than 97% of homes in Humboldt County
  • Newer than 77% of homes in Humboldt County

How it measures up in Humboldt County

The dot is this home. The mark in the middle is the typical home in Humboldt County.

Estimated value$279,321
CheaperTypical $397,198Pricier

Pricier than 19% of homes nearby

Price per ft²$137
CheaperTypical $292Pricier

Pricier than 2% of homes nearby

Living area2,040 ft²
SmallerTypical 1,464 ft²Bigger

Bigger than 80% of homes nearby

Lot size40 ac
SmallerTypical 0.24 acBigger

Bigger than 97% of homes nearby

Year built1990
OlderTypical 1961Newer

Newer than 77% of homes nearby

How ranks against every home in each area.
MeasureThis homeHumboldt County
Estimated valuepricier than$279,32119% of homes
Price per ft²pricier than$1372% of homes
Living areabigger than2,040 ft²80% of homes
Lot sizebigger than40 ac97% of homes
Year builtnewer than199077% of homes

About

How much is , Mad River, CA worth?

The TopHap Estimate for , Mad River, CA is $279,321 as of Jul 14, 2026. The likely range is $247,226 to $311,416. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did , Mad River, CA last sell?

, Mad River, CA last sold on Aug 29, 2018 for $174,138, according to the county's recorded deed.

How big is , Mad River, CA?

, Mad River, CA has 1 bathrooms, 2,040 square feet of living space and a 40.00-acre lot.

When was , Mad River, CA built?

, Mad River, CA was built in 1990, making it 36 years old. The building has 2 stories.

What schools serve , Mad River, CA?

, Mad River, CA is assigned to Southern Trinity High School (high); Van Duzen Elementary School (elementary), rated A. All sit in Southern Trinity Joint Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does , Mad River, CA compare to other homes in Humboldt County?

Among the 45,418 homes in Humboldt County, it is worth more than 19% of them ($279,321 against a typical $397,198), its price per square foot is higher than 2% of them ($137 against a typical $292), it is bigger than 80% of them (2,040 ft² against a typical 1,464 ft²), its lot is bigger than 97% of them (40 ac against a typical 0.24 ac) and it is newer than 77% of them (1990 against a typical 1961). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on , Mad River, CA?

The 2025 property tax bill for , Mad River, CA was $2,653. The county assessed it at $250,987.

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Assigned schools

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