Real estate · County · California
Home inspectors in San Diego County, CA
How San Diego County, CA compares with other counties and the U.S. for home inspectors: competitors, household spending, official counts and growth.
Groundwork market score · out of 100
Score 55 out of 100: Upper middle
Ranked #157 of 415 scored counties
#20 of 24 scored counties in California
- Listings
- 72
- 3 chain locations (4%)
- Official establishments
- 118
- +12.4% since 2019
- Household spending a year
- $23.9B
- On rent and homeowner costs · $20,407 a household
- Housing spending per listing (U.S. = 100)
- 126
- 26% above the U.S.
- Listings per 10k households
- 0.6
- In line with the U.S.
- Population, 2025
- 3,282,248
- −0.6% since 2020
See the home inspectors around any address in San Diego County
The site report maps the home inspectors 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 San Diego County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardSurvey 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 72 home inspectors in San Diego County. Chain locations make up 4% of them, against 3% across the U.S. That comes to 0.6 for every 10,000 households, in line with the U.S. rate of 0.6.
Households in San Diego County spend about $23.9B a year on rent and homeowner costs, or $20,407 per household, 22% above the U.S. average. Housing spending per business is 26% above the U.S. figure. That figure is all rent and homeowner costs, used as a measure of housing demand; it is not money home inspectors take in.
The official count of businesses with payroll classed as building inspection services in San Diego County was 118 in 2023, up 12.4% from 2019. That is one for every 9,926 households, against one for every 17,237 across the U.S. Since fiscal 2022, 2 SBA-backed loans worth $300K have gone to businesses classed as building inspection services in San Diego County.
Between 2020 and 2025, the population of San Diego County declined 0.6%, against +3.1% for the U.S. For home inspectors, San Diego County has a Groundwork market score of 55 (upper middle): #157 of 415 scored counties and #20 of 24 scored counties in California.
How San Diego County compares
The same measures for California and the whole U.S. Housing spending per listing divides all rent and homeowner costs by the listings counted: a measure of housing demand for each business, not money any of them take in, so it is shown against the U.S. (100) only. Households per establishment divides households by the official count.
| Measure | San Diego County | California | U.S. |
|---|---|---|---|
| Listings per 10k households | 0.6 | 0.5 | 0.6 |
| Housing spending per listing (U.S. = 100) | 126 | 168 | 100 |
| Households per official establishment | 9,926 | 13,535 | 17,237 |
| Official establishment growth, 2019–2023 | +12.4% | +14.5% | +6.5% |
| Population growth, 2020–2025 | −0.6% | −0.4% | +3.1% |
| Spending per household on rent and homeowner costs | $20,407 | $19,977 | $16,661 |
| Median household income | $106,268 | $99,122 | $80,734 |
| Groundwork market score | 55 | 55 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 105 → 118+12.4% over the period
- Employees, 2023
- 490
- Annual payroll, 2023
- $41.2M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 723 chain locations
- Listings at the U.S. rate for this spending
- 91The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 2
- Amount
- $300K
SBA-backed loans to businesses classed as building inspection services in San Diego 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 San Diego County
- Population, 2025 estimate
- 3,282,248−0.6% since 2020
- Households
- 1,171,278
- Median age
- 38.9
- Homes lived in by their owners
- 55%
- Vehicles per household
- 1.9
- Land area
- 4,211 sq. mi.
- People per square mile
- 781
- Median household income
- $106,268+34.6% vs. 2015–2019, before inflation
- Average household income
- $141,250
- Median home value
- $854,700
- Jobs located here
- 1,516,991
- Daytime population
- 3,269,716Residents who don’t work, plus everyone whose job is here
Looking at a specific site in San Diego 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 home inspectors on map listings by name and distance.
Or open the report at the center of San Diego County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardHome inspectors across California
Every California market ranked →The highest-scoring counties in California for home inspectors, numbered among those based in California, with San Diego County marked.
Top counties in California
| Market | Score | Listings | Per 10k households | Housing spending per listing (U.S. = 100) | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1San Joaquin County, CA | 83 | 9 | 0.4 | 198 | +5.5% | #4 of 415 |
| 2Santa Clara County, CA | 82 | 16 | 0.2 | 380 | −0.9% | #7 of 415 |
| 3San Francisco County, CA | 79 | 9 | 0.2 | 350 | −5.6% | #13 of 415 |
| 4Solano County, CA | 74 | 8 | 0.5 | 148 | +0.6% | #34 of 415 |
| 5Alameda County, CA | 73 | 23 | 0.4 | 221 | −2.6% | #40 of 415 |
| 6Fresno County, CA | 73 | 10 | 0.3 | 217 | +2.6% | #41 of 415 |
| 7Contra Costa County, CA | 72 | 10 | 0.2 | 348 | +0.3% | #45 of 415 |
| 8Monterey County, CA | 71 | 7 | 0.5 | 141 | −1.5% | #48 of 415 |
| 9Sacramento County, CA | 70 | 38 | 0.7 | 109 | +2.0% | #60 of 415 |
| 10Stanislaus County, CA | 69 | 6 | 0.3 | 204 | +0.7% | #61 of 415 |
| 20San Diego County, CA | 55 | 72 | 0.6 | 126 | −0.6% | #157 of 415 |
Other business types in San Diego County
Each with its Groundwork market score here, out of 100, where it has one.
Food and drink
Groceries and convenience
Auto
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
Real estate
- Real estate28
- Real estate agents and brokers30
- Property management32
- Mortgage brokers and lenders28
- Home inspectors55
Funeral services
Questions
How many home inspectors are in San Diego County, CA?
There are 72 home inspectors on map listings in San Diego County as of September 2026. 3 of them (4%) are chain locations. The listings count home inspectors. Official counts show 118 businesses with payroll classed as building inspection services in 2023, up 12.4% from 2019.
How much do households in San Diego County, CA spend on rent and homeowner costs?
About $23.9B a year, or $20,407 per household. That is 22% above the U.S. average (an index of 122, where 100 is the U.S. average). For the 72 home inspectors on map listings, housing spending per business is 26% above the U.S. figure. The spending figure is all rent and homeowner costs, a measure of housing demand, not money home inspectors take in. It is estimated from the incomes of the 1,171,278 households in San Diego County and national spending patterns by income.
How does San Diego County, CA compare with the U.S. for home inspectors?
San Diego County has 0.6 home inspectors per 10,000 households, in line with the U.S. rate of 0.6. The index of housing spending per business is 126, where 100 is the U.S. At the national ratio of home inspectors to household spending, San Diego County would have about 91, against 72 on map listings. There is one business with payroll in the industry for every 9,926 households, against one for every 17,237 across the U.S. The official count rose 12.4% from 2019 to 2023, against +6.5% for the U.S.
How fast is San Diego County, CA growing?
Population estimates put San Diego County at 3,282,248 people in 2025, down 0.6% since 2020, against +3.1% for the U.S. It has 1,171,278 households. Median household income in San Diego County is $106,268, 32% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 34.6%, 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. San Diego County scores 55 for home inspectors (upper middle), #157 of 415 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in San Diego County. It maps the home inspectors 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 home inspectors · All 56 business types in San Diego County
Screening a site or an acquisition in San Diego 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 San Diego 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.