Real estate · County · California
Real estate agents and brokers in Sonoma County, CA
The real estate agents and brokers in Sonoma County, CA, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 40 out of 100: Lower middle
Ranked #1,592 of 2,176 scored counties
#33 of 55 scored counties in California
- Listings
- 681
- 40 chain locations (6%)
- Official establishments
- 231
- +25.5% since 2019
- Household spending a year
- $3.9B
- On rent and homeowner costs · $20,353 a household
- Housing spending per listing (U.S. = 100)
- 105
- 5% above the U.S.
- Listings per 10k households
- 35.7
- 17% above the U.S.
- Population, 2025
- 486,444
- −0.4% since 2020
See the real estate agents and brokers around any address in Sonoma County
The site report maps the real estate agents and brokers 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 Sonoma 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
Household spending on rent and homeowner costs in Sonoma County comes to about $3.9B a year: $20,353 per household, 22% above the U.S. average. Housing spending per office is 5% above the U.S. figure. The spending figure is all rent and homeowner costs, a measure of housing demand, not money real estate agents and brokers take in.
There are 681 real estate agents and brokers on map listings in Sonoma County as of September 2026. 40 of them (6%) are chain locations, against 4% across the U.S. That is 35.7 per 10,000 households, 17% above the U.S. rate of 30.6.
In 2023, official counts showed 231 businesses with payroll in Sonoma County classed as offices of real estate agents and brokers, up 25.5% from 2019. That is one for every 827 households, against one for every 788 across the U.S. Since fiscal 2022, 2 SBA-backed loans worth $581K have gone to businesses classed as offices of real estate agents and brokers in Sonoma County.
Population estimates show Sonoma County declined 0.4% from 2020 to 2025, against +3.1% for the U.S. Sonoma County scores 40 (lower middle) on the Groundwork market score for real estate agents and brokers, ranking #1,592 of 2,176 scored counties and #33 of 55 scored counties in California.
How Sonoma 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 | Sonoma County | California | U.S. |
|---|---|---|---|
| Listings per 10k households | 35.7 | 38.0 | 30.6 |
| Housing spending per listing (U.S. = 100) | 105 | 96 | 100 |
| Households per official establishment | 827 | 601 | 788 |
| Official establishment growth, 2019–2023 | +25.5% | +17.3% | +20.1% |
| Population growth, 2020–2025 | −0.4% | −0.4% | +3.1% |
| Spending per household on rent and homeowner costs | $20,353 | $19,977 | $16,661 |
| Median household income | $104,674 | $99,122 | $80,734 |
| Groundwork market score | 40 | 37 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 184 → 231+25.5% over the period
- Employees, 2023
- 493
- Annual payroll, 2023
- $39.1M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 68140 chain locations
- Listings at the U.S. rate for this spending
- 713The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 2
- Amount
- $581K
SBA-backed loans to businesses classed as offices of real estate agents and brokers in Sonoma 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 Sonoma County
- Population, 2025 estimate
- 486,444−0.4% since 2020
- Households
- 190,998
- Median age
- 44.0
- Homes lived in by their owners
- 63%
- Vehicles per household
- 2.0
- Land area
- 1,575 sq. mi.
- People per square mile
- 308
- Median household income
- $104,674+29.2% vs. 2015–2019, before inflation
- Average household income
- $142,354
- Median home value
- $815,500
- Jobs located here
- 200,159
- Daytime population
- 465,573Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Sonoma 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 real estate agents and brokers on map listings by name and distance.
Or open the report at the center of Sonoma County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardReal estate agents and brokers across California
Every California market ranked →The highest-scoring counties in California for real estate agents and brokers, numbered among those based in California, with Sonoma County marked.
Top counties in California
| Market | Score | Listings | Per 10k households | Housing spending per listing (U.S. = 100) | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Yuba County, CA | 88 | 23 | 8.0 | 397 | +8.2% | #2 of 2,176 |
| 2Kings County, CA | 70 | 64 | 14.5 | 214 | +1.0% | #213 of 2,176 |
| 3Colusa County, CA | 69 | 8 | 10.6 | 299 | −0.1% | #236 of 2,176 |
| 4Merced County, CA | 69 | 158 | 18.4 | 166 | +5.1% | #253 of 2,176 |
| 5Glenn County, CA | 65 | 14 | 14.3 | 212 | −2.6% | #354 of 2,176 |
| 6Madera County, CA | 65 | 105 | 23.1 | 140 | +7.4% | #370 of 2,176 |
| 7Tulare County, CA | 62 | 270 | 18.9 | 167 | +2.4% | #484 of 2,176 |
| 8Inyo County, CA | 61 | 12 | 14.9 | 215 | −4.4% | #511 of 2,176 |
| 9Tehama County, CA | 61 | 47 | 19.0 | 160 | −1.7% | #528 of 2,176 |
| 10Kern County, CA | 60 | 572 | 20.1 | 156 | +2.3% | #565 of 2,176 |
| 33Sonoma County, CA | 40 | 681 | 35.7 | 105 | −0.4% | #1,592 of 2,176 |
Other business types in Sonoma 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 estate35
- Real estate agents and brokers40
- Property management42
- Mortgage brokers and lenders31
- Home inspectors61
Funeral services
Questions
How many real estate agents and brokers are in Sonoma County, CA?
As of September 2026, map listings count 681 real estate agents and brokers in Sonoma County. 40 of them (6%) are chain locations. The listings count real estate agents and brokerages, commercial brokers included. Official counts show 231 businesses with payroll classed as offices of real estate agents and brokers in 2023, up 25.5% from 2019.
How much do households in Sonoma County, CA spend on rent and homeowner costs?
About $3.9B a year, or $20,353 per household. That is 22% above the U.S. average (an index of 122, where 100 is the U.S. average). For the 681 real estate agents and brokers on map listings, housing spending per office is 5% above the U.S. figure. That figure is all rent and homeowner costs, used as a measure of housing demand; it is not money real estate agents and brokers take in. It is estimated from the incomes of the 190,998 households in Sonoma County and national spending patterns by income.
How does Sonoma County, CA compare with the U.S. for real estate agents and brokers?
Sonoma County has 35.7 real estate agents and brokers per 10,000 households, 17% above the U.S. rate of 30.6. The index of housing spending per office is 105, where 100 is the U.S. At the U.S. ratio of real estate agents and brokers to household spending, Sonoma County would have about 713, against 681 on map listings. There is one business with payroll in the industry for every 827 households, against one for every 788 across the U.S. The official count rose 25.5% from 2019 to 2023, against +20.1% for the U.S.
How fast is Sonoma County, CA growing?
Population estimates put Sonoma County at 486,444 people in 2025, down 0.4% since 2020, against +3.1% for the U.S. It has 190,998 households. Median household income in Sonoma County is $104,674, 30% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 29.2%, 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. Sonoma County scores 40 for real estate agents and brokers (lower middle), #1,592 of 2,176 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Sonoma County. It maps the real estate agents and brokers 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 real estate agents and brokers · All 56 business types in Sonoma County
Screening a site or an acquisition in Sonoma 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 Sonoma 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.