Real estate · County · California
Home inspectors in Napa County, CA
The home inspectors in Napa County, CA, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 42 out of 100: Lower middle
Ranked #268 of 415 scored counties
#23 of 24 scored counties in California
- Listings
- 5
- 1 chain location (20%)
- Official establishments
- 6
- Businesses with payroll, 2023
- Household spending a year
- $1B
- On rent and homeowner costs · $20,986 a household
- Housing spending per listing (U.S. = 100)
- 80
- 20% below the U.S.
- Listings per 10k households
- 1.0
- 67% above the U.S.
- Population, 2025
- 132,949
- −3.3% since 2020
See the home inspectors around any address in Napa 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 Napa 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 5 home inspectors in Napa County. One of them (20%) is a chain location, against 3% across the U.S. Per 10,000 households, that is 1.0, 67% above the U.S. rate of 0.6.
At $20,986 per household (26% above the U.S. average), households in Napa County spend about $1B a year on rent and homeowner costs. Housing spending per business is 20% below 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.
In 2023, official counts showed 6 businesses with payroll in Napa County classed as building inspection services. That is one for every 8,294 households, against one for every 17,237 across the U.S.
Population estimates put the population change in Napa County from 2020 to 2025 at −3.3%, against +3.1% for the U.S. For home inspectors, Napa County has a Groundwork market score of 42 (lower middle): #268 of 415 scored counties and #23 of 24 scored counties in California.
How Napa 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 | Napa County | California | U.S. |
|---|---|---|---|
| Listings per 10k households | 1.0 | 0.5 | 0.6 |
| Housing spending per listing (U.S. = 100) | 80 | 168 | 100 |
| Households per official establishment | 8,294 | 13,535 | 17,237 |
| Official establishment growth, 2019–2023 | n/a | +14.5% | +6.5% |
| Population growth, 2020–2025 | −3.3% | −0.4% | +3.1% |
| Spending per household on rent and homeowner costs | $20,986 | $19,977 | $16,661 |
| Median household income | $111,471 | $99,122 | $80,734 |
| Groundwork market score | 42 | 55 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 5 → 6
- Employees, 2023
- 12
- Annual payroll, 2023
- $729K
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 51 chain location
- Listings at the U.S. rate for this spending
- 4The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 0
- Amount
- $0
SBA-backed loans to businesses classed as building inspection services in Napa 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 Napa County
- Population, 2025 estimate
- 132,949−3.3% since 2020
- Households
- 49,763
- Median age
- 43.7
- Homes lived in by their owners
- 63%
- Vehicles per household
- 2.0
- Land area
- 752 sq. mi.
- People per square mile
- 179
- Median household income
- $111,471+25.8% vs. 2015–2019, before inflation
- Average household income
- $161,760
- Median home value
- $869,500
- Jobs located here
- 76,014
- Daytime population
- 143,128Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Napa 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 Napa 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 Napa 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 |
| 23Napa County, CA | 42 | 5 | 1.0 | 80 | −3.3% | #268 of 415 |
Other business types in Napa 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 estate30
- Real estate agents and brokers34
- Property management53
- Mortgage brokers and lenders30
- Home inspectors42
Funeral services
Questions
How many home inspectors are in Napa County, CA?
There are 5 home inspectors on map listings in Napa County as of September 2026. One of them (20%) is a chain location. The listings count home inspectors. Official counts show 6 businesses with payroll classed as building inspection services in 2023.
How much do households in Napa County, CA spend on rent and homeowner costs?
About $1B a year, or $20,986 per household. That is 26% above the U.S. average (an index of 126, where 100 is the U.S. average). For the 5 home inspectors on map listings, housing spending per business is 20% below 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 49,763 households in Napa County and national spending patterns by income.
How does Napa County, CA compare with the U.S. for home inspectors?
Napa County has 1.0 home inspectors per 10,000 households, 67% above the U.S. rate of 0.6. The index of housing spending per business is 80, where 100 is the U.S. At the national ratio of home inspectors to household spending, Napa County would have about 4, against 5 on map listings. There is one business with payroll in the industry for every 8,294 households, against one for every 17,237 across the U.S.
How fast is Napa County, CA growing?
Population estimates put Napa County at 132,949 people in 2025, down 3.3% since 2020, against +3.1% for the U.S. It has 49,763 households. Median household income in Napa County is $111,471, 38% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 25.8%, 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. Napa County scores 42 for home inspectors (lower middle), #268 of 415 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Napa 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 Napa County
Screening a site or an acquisition in Napa 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 Napa 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.