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Petrolia 95558

ZIP codeThe kind of area this report covers. Neighborhood areas nest inside each other, from broad districts down to small pockets.CaliforniaBalanced market
Market temperatureA 0 to 100 score comparing this area with every similar area nationwide each month. 0 is the strongest buyer's market, 100 the strongest seller's market.Balanced market · 48
Buyer's marketBalancedSeller's market
$300K
Median sale priceThe middle sale price each month, counting normal open-market sales. The average runs above the median when a few expensive sales pull it up. Bars show how many homes sold.
4
Sales (12 mo)How many homes sold here in the last 12 months. More sales make the other numbers more reliable.
$315K
Median valueThe middle estimated value of all homes here, not just the ones that recently sold.

Deed records through Apr 2026 · Quarterly intervals (lower sales volume)Counties take time to publish deeds, so the newest months can be incomplete and may shift as more records arrive.

Market Trends

Market temperature (0–100)How the 0 to 100 market score moved over time. It blends price growth, sales pace, how often homes change hands, and seller profits.Temperature
20162018201920202022202320252026
Sale pricesThe middle sale price each month, counting normal open-market sales. The average runs above the median when a few expensive sales pull it up. Bars show how many homes sold.MedianSales
20162018201920202022202320252026
Growth (year over year)How much prices and sales counts changed since the same time last year, using a 3-month average to smooth out noise. Above the dashed line means growth.PriceSales
20162018201920202022202320252026
Price per square footThe middle price per square foot, for sales where the size is known. It adjusts for homes being different sizes.$/ft²
20162018201920202022202320252026
Sale premium vs estimated valueHow sale prices compare with our estimated values at the time of sale. Above the dashed line, homes sold for more than the models expected — a sign of competitive bidding. Below it, buyers paid under model value.Premium
20162018201920202022202320252026
Annual turnover (share of homes sold)The share of all homes here that sold in the trailing 12 months. Higher turnover means a more liquid market where homes trade hands more often.Turnover
20162018201920202022202320252026
Buyer mixWho is buying. Cash means no mortgage was recorded, investor means the buyer looked like an investor, and flip means the home resold within a year.CashInvestorFlip resale
20162018201920202022202320252026
Financing (share of purchase price)For buyers who borrowed: the middle share of the price they financed, and the middle share they paid up front.Loan (LTV)Down payment
20162018201920202022202320252026
Sellers who sold at a gainThe share of sellers each month who sold for more than they originally paid.Sold at gain
20162018201920202022202320252026
Typical hold before sellingThe middle number of years sellers owned their home before selling.Median hold
20162018201920202022202320252026
Median annualized return at resaleThe middle yearly gain sellers earned, spread across the years they owned the home. Only counts homes held at least a year.Annualized gain
20162018201920202022202320252026
Preforeclosure filingsForeclosure notices filed each month. A rise can be an early sign that more owners are struggling. Auction stage counts the filings that reached a scheduled foreclosure auction.FilingsAuction stage
2017202020242026

Housing Stock

HomesHow many homes we have records for in this area.207
Median value (AVM)The middle estimated value of all homes here, not just the ones that recently sold.$315K
Median sizeThe middle home size here, measured in square feet.1,252 ft²
Median bedroomsThe middle bedroom count for homes here.2
Median year builtThe middle build year for homes here. A recent year means most housing is newer.1970
Single familyThe share of homes here that are single-family houses.13%

Equity & Ownership

Equity rich (LTV ≤ 50%)The share of owners who owe half or less of what their home is worth, meaning they hold a lot of equity.79%
Underwater (LTV ≥ 125%)The share of owners who owe at least 25% more than their home is worth.3.5%
Owner occupiedThe share of homes lived in by their owner rather than rented out or left empty.57%
Company ownedThe share of homes owned by a company or trust instead of a person.32%
Median loan-to-valueThe middle share of home value still owed on loans across all owners here.0%
Typical ownership tenureHow long the typical owner here has held their home.12.3 yrs

CommunityThese 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.139
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.375

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.81%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.12%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.532
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4 / mi²
Median household incomeThe middle household income here — half of households earn more, half earn less.$67K
Average household incomeThe average household income. It runs higher than the median when a few high earners pull it up.$113K
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.72 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.51%

Market metrics are derived from recorded arms-length deeds and refreshed nightly. Temperature blends price momentum, sales velocity, turnover and resale outcomes, ranked against all ZIP codes nationally.

How Petrolia 95558 compares

By median home value, Petrolia 95558 is the 16th most expensive of 33 ZIP codes in Humboldt County, and its typical home is worth more than 27% of all homes in Humboldt County.

Home values in Petrolia 95558

Share of homes at each estimated value.

Median
$103K$796K
ZIP codes in Humboldt County ranked by median home value
#Humboldt CountyMedian valueHomes
1Trinidad 95570$663K1,114
2Bayside 95524$642K665
3Kneeland 95549$554K322
4Hydesville 95547$473K506
5Arcata 95521$465K5,321
6McKinleyville 95519$460K6,383
7Ferndale 95536$457K1,055
8Blue Lake 95525$455K757
9Loleta 95551$437K483
10Fortuna 95540$385K4,611
11Eureka 95503$384K9,127
12Samoa 95564$372K179
13Eureka 95501$364K6,434
14Carlotta 95528$351K436
15Whitethorn 95589$330K1,003
16Petrolia 95558$315K207
17Honeydew 95545$312K131
18Scotia 95565$304K271
19Orick 95555$294K171
20Garberville 95542$287K1,029
21Fields Landing 95537$278K101
22Miranda 95553$276K365
23Rio Dell 95562$273K1,372
24Willow Creek 95573$263K892

33 ZIP codes in Humboldt County are ranked; the most valuable are listed here.

About the Petrolia 95558 market

What is the median home price in Petrolia 95558, CA?

The median sale price in Petrolia 95558, CA is $300,000 (data through April 2026), based on deeds recorded with the county.

How many homes sell in Petrolia 95558, CA each year?

4 homes sold in Petrolia 95558, CA over the last 12 months (data through April 2026). TopHap counts recorded arm's-length deeds, not listings, so the figure is not affected by which brokerage handled the sale.

Is Petrolia 95558, CA a buyer's or seller's market?

Petrolia 95558, CA is currently a balanced market, scoring 48 out of 100 on TopHap's market temperature index (data through April 2026). The score weighs sales velocity and price direction; above 60 favours sellers, below 40 favours buyers.

How many homes are there in Petrolia 95558, CA?

Petrolia 95558, CA contains 207 residential properties, with a median of 1,252 square feet, 2 bedrooms, built around 1970. The median TopHap Estimate is $315K.

How does Petrolia 95558, CA compare to the rest of Humboldt County?

By median home value, Petrolia 95558, CA is the 16th most expensive of 33 ZIP codes in Humboldt County. Its typical home is worth more than 27% of all homes in Humboldt County. Whitethorn 95589 ranks just above it and Honeydew 95545 just below. The ranking is rebuilt nightly from the county assessor record of every home in each area.

Do people own or rent in Petrolia 95558, CA?

57% of homes in Petrolia 95558, CA are owner-occupied. 32% are held by a company rather than an individual.

How much equity do owners in Petrolia 95558, CA hold?

79% of mortgaged homes in Petrolia 95558, CA are equity-rich, meaning the loan balance is under half the home's value. 3.5% owe more than the home is worth.

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