Groundwork

Auto · County · California

Auto repair shops in Humboldt County, CA

The auto repair shops in Humboldt County, CA, the household spending behind them and how the market ranks against other counties.

Groundwork market score · out of 100

Score 46 out of 100: Lower middle

Ranked #1,368 of 2,378 scored counties
#41 of 55 scored counties in California

Listings
100
13 chain locations (13%)
Official establishments
67
+1.5% since 2019
Household spending a year
$54.4M
On vehicle maintenance and repairs · $990 a household
Spending per listing
$544K
22% above the U.S.
Listings per 10k households
18.2
15% below the U.S.
Population, 2025
131,647
−3.4% since 2020

See the auto repair shops around any address in Humboldt County

The site report maps the auto repair shops on map listings near the address, by name and distance, and sizes the households and spending around it. Or open the report at the center of Humboldt County. Signed out, you see a blurred preview; on an account, each report is one action.

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Survey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure

What this means

Map listings as of September 2026 show 100 auto repair shops in Humboldt County. Chain locations make up 13% of them, against 16% across the U.S. That is 18.2 per 10,000 households, 15% below the U.S. rate of 21.5.

At $990 per household (3% above the U.S. average), households in Humboldt County spend about $54.4M a year on vehicle maintenance and repairs. That works out to $544K per shop, 22% above the U.S. figure of $445K. That spending covers all vehicle maintenance and repairs, which auto repair shops share with other businesses in the trade.

Official counts show 67 businesses with payroll classed as mechanical, body and glass repair in Humboldt County in 2023, up 1.5% from 2019. That is one for every 820 households, against one for every 955 across the U.S. Another 88 one-person businesses have no payroll, by official counts. Since fiscal 2022, 1 SBA-backed loan worth $25K has gone to businesses classed as mechanical, body and glass repair in Humboldt County.

Population estimates show Humboldt County declined 3.4% from 2020 to 2025, against +3.1% for the U.S. The Groundwork market score for auto repair shops in Humboldt County is 46 (lower middle), #1,368 of 2,378 scored counties and #41 of 55 scored counties in California.

How Humboldt County compares

The same measures for California and the whole U.S. Spending per listing divides a year of household spending on all vehicle maintenance and repairs by the auto repair shops counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.

Auto repair shops in Humboldt County, CA compared with California and the U.S.
MeasureHumboldt CountyCaliforniaU.S.
Listings per 10k households18.224.721.5
Spending per listing$544K$455K$445K
Households per official establishment820861955
Official establishment growth, 2019–2023+1.5%+2.1%+2.1%
Population growth, 2020–2025−3.4%−0.4%+3.1%
Spending per household on vehicle maintenance and repairs$990$1,122$958
Median household income$61,160$99,122$80,734
Groundwork market score4642

Official counts and lending

Businesses

Official establishments, 2019 to 2023
66 → 67+1.5% over the period
Employees, 2023
368
Annual payroll, 2023
$20.3M
One-person businesses, 2023
88Businesses with no payroll
Map listings, September 2026
10013 chain locations
Listings at the U.S. rate for this spending
122The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
1
Amount
$25K

SBA-backed loans to businesses classed as mechanical, body and glass repair in Humboldt County, through June 2026, placed by the borrower’s ZIP code. Official establishments are businesses with payroll; the official counts leave out places with fewer than 3.

Population and households in Humboldt County

Population, 2025 estimate
131,647−3.4% since 2020
Households
54,922
Median age
40.4
Homes lived in by their owners
57%
Vehicles per household
1.9
Land area
3,568 sq. mi.
People per square mile
38
Median household income
$61,160+27.3% vs. 2015–2019, before inflation
Average household income
$86,194
Median home value
$446,900
Jobs located here
48,178
Daytime population
133,286Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Humboldt County?

These figures cover the whole county. A site report draws rings around one address and counts what’s inside them: households, spending, jobs, and the auto repair shops on map listings by name and distance.

Or open the report at the center of Humboldt County. Signed out, you see a blurred preview; on an account, each report is one action.

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Auto repair shops across California

Every California market ranked →

The highest-scoring counties in California for auto repair shops, numbered among those based in California, with Humboldt County marked.

Top counties in California

Counties in California ranked for auto repair shops by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Yuba County, CA894014.0$817K+8.2%#30 of 2,378
2Calaveras County, CA812614.1$928K+2.8%#91 of 2,378
3San Benito County, CA804722.9$633K+8.6%#117 of 2,378
4Mariposa County, CA79810.7$1.1M−1.2%#126 of 2,378
5Placer County, CA7732320.4$591K+8.9%#172 of 2,378
6Contra Costa County, CA7375818.3$668K+0.3%#256 of 2,378
7Trinity County, CA7259.0$1.2M−2.3%#278 of 2,378
8Merced County, CA7218020.9$531K+5.1%#297 of 2,378
9El Dorado County, CA7013417.6$729K+0.6%#334 of 2,378
10Mono County, CA69610.4$1.1M−5.4%#357 of 2,378
41Humboldt County, CA4610018.2$544K−3.4%#1,368 of 2,378

Other business types in Humboldt County

Each with its Groundwork market score here, out of 100, where it has one.

Questions

How many auto repair shops are in Humboldt County, CA?

There are 100 auto repair shops on map listings in Humboldt County as of September 2026. 13 of them (13%) are chain locations. The listings count general, specialty, body and glass repair shops. Official counts show 67 businesses with payroll classed as mechanical, body and glass repair in 2023, up 1.5% from 2019. Official counts list 88 one-person businesses without payroll.

How much do households in Humboldt County, CA spend on vehicle maintenance and repairs?

About $54.4M a year, or $990 per household. That is 3% above the U.S. average (an index of 103, where 100 is the U.S. average). Spread across the 100 auto repair shops on map listings, it comes to $544K per shop. The spending figure covers all vehicle maintenance and repairs, not only auto repair shops. It is estimated from the incomes of the 54,922 households in Humboldt County and national spending patterns by income.

How does Humboldt County, CA compare with the U.S. for auto repair shops?

Humboldt County has 18.2 auto repair shops per 10,000 households, 15% below the U.S. rate of 21.5. Spending per shop is $544K, 22% above the U.S. figure of $445K. At the national ratio of auto repair shops to household spending, Humboldt County would have about 122, against 100 on map listings. There is one business with payroll in the industry for every 820 households, against one for every 955 across the U.S. The official count rose 1.5% from 2019 to 2023, against +2.1% for the U.S.

How fast is Humboldt County, CA growing?

Population estimates put Humboldt County at 131,647 people in 2025, down 3.4% since 2020, against +3.1% for the U.S. It has 54,922 households. The median household income in Humboldt County is $61,160 a year, 24% below the U.S. median of $80,734. That rose 27.3% from the 2015–2019 survey, before inflation.

What is the Groundwork market score?

The Groundwork market score runs from 0 to 100 and compares a market with others of its kind for one business type: states with states, metro areas with metro areas, small-town markets and counties with their own. It weighs household spending per competitor (35%), households per business with payroll (25%), population growth (20%) and spending power (20%), each ranked against those peers. A higher score means that, taken together, the market has more household spending and more households for each business already there, faster population growth and more spending per household than similar markets. It describes a market, not any one site or deal. Humboldt County scores 46 for auto repair shops (lower middle), #1,368 of 2,378 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Humboldt County. It maps the auto repair shops on map listings near the site and sizes the households and spending within the distance you choose. New accounts get 10 actions over 3 days, no card.

How the score works · Top markets for auto repair shops · All 56 business types in Humboldt County

Screening a site or an acquisition in Humboldt County?

A site report maps the competitors on map listings near an address and sizes the households and spending around it.

The button opens the report at the center of Humboldt County. Signed out, you see a blurred preview; on an account, each report is one action.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are estimates for research only. Not investment or real estate advice.