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Single Family ResidenceResidential
$500,602$444 / 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 90How 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 $489,500 on Dec 11, 2024

1639 I ST

ARCATA, CA 95521
2
Beds
1
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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1922
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$501K
$448K low$553K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$489,500 · Dec 11, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$901 (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.$489,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$160,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$329,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$53,034

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyHUMBOLDT
Lot (acres)The size of the land the home sits on, from county records.0.16
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.Floor/Wall Furnace
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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.

H
Arcata High SchoolA+
High · Grades 9–12 · 0.2 mi
E
Arcata Elementary SchoolC
Elementary · Grades KG–5 · 0.5 mi
M
Sunny Brae Middle SchoolB
Middle · Grades 6–8 · 1.6 mi

District: Northern Humboldt Union High School District

Neighborhood · ZIP 95521These 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.113
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.100
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.641

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.26%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.7%
PopulationHow many people live in this area.20,920
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.271 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$48,337
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$66,702
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.76 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.51%

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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

1639 I 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 more than 74% of homes in Humboldt County
  • Costs more per square foot than 94% of homes in Humboldt County
  • Smaller than 77% of homes in Humboldt County
  • Has a smaller lot than 72% of homes in Humboldt County
  • Older than 93% of homes in Arcata 95521

What homes are worth in Arcata 95521

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

This home
$234K$972K

This home is worth more than 59% of homes in Arcata 95521.

How it measures up in Arcata 95521

The dot is this home. The mark in the middle is the typical home in Arcata 95521.

Estimated value$500,602
CheaperTypical $469,361Pricier

Pricier than 59% of homes nearby

Price per ft²$444
CheaperTypical $352Pricier

Pricier than 87% of homes nearby

Living area1,128 ft²
SmallerTypical 1,408 ft²Bigger

Bigger than 29% of homes nearby

Lot size0.16 ac
SmallerTypical 0.19 acBigger

Bigger than 32% of homes nearby

Year built1922
OlderTypical 1959Newer

Newer than 7% of homes nearby

How 1639 I St ranks against every home in each area.
MeasureThis homeArcata Heights / NorthtownArcata 95521Humboldt County
Estimated valuepricier than$500,60229% of homes59% of homes74% of homes
Price per ft²pricier than$44475% of homes87% of homes94% of homes
Living areabigger than1,128 ft²24% of homes29% of homes23% of homes
Lot sizebigger than0.16 ac54% of homes32% of homes28% of homes
Year builtnewer than192242% of homes7% of homes12% of homes

About 1639 I St

How much is 1639 I St, Arcata, CA worth?

The TopHap Estimate for 1639 I St, Arcata, CA is $500,602 as of Aug 30, 2026. The likely range is $448,105 to $553,099. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1639 I St, Arcata, CA last sell?

1639 I St, Arcata, CA last sold on Dec 11, 2024 for $489,500, according to the county's recorded deed.

How big is 1639 I St, Arcata, CA?

1639 I St, Arcata, CA has 2 bedrooms, 1 bathrooms, 1,128 square feet of living space and a 0.16-acre lot.

When was 1639 I St, Arcata, CA built?

1639 I St, Arcata, CA was built in 1922, making it 104 years old. The building has 1 story.

What schools serve 1639 I St, Arcata, CA?

1639 I St, Arcata, CA is assigned to Arcata High School (high), rated A+; Arcata Elementary School (elementary), rated C; Sunny Brae Middle School (middle), rated B. All sit in Northern Humboldt Union High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1639 I St, Arcata, CA compare to other homes in Arcata 95521?

Among the 5,321 homes in Arcata 95521, it is worth more than 59% of them ($500,602 against a typical $469,361), its price per square foot is higher than 87% of them ($444 against a typical $352), it is bigger than 29% of them (1,128 ft² against a typical 1,408 ft²), its lot is bigger than 32% of them (0.16 ac against a typical 0.19 ac) and it is newer than 7% of them (1922 against a typical 1959). Measured against all of Humboldt County, it is worth more than 74% 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 1639 I St, Arcata, CA?

The 2024 property tax bill for 1639 I St, Arcata, CA was $901. The county assessed it at $489,500.

More homes on I St

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