Real estate · County · California
Real estate agents and brokers in Contra Costa County, CA
How Contra Costa County, CA compares with other counties and the U.S. for real estate agents and brokers: competitors, household spending, official counts and growth.
Groundwork market score · out of 100
Score 36 out of 100: Lower middle
Ranked #1,810 of 2,176 scored counties
#39 of 55 scored counties in California
- Listings
- 1,828
- 78 chain locations (4%)
- Official establishments
- 742
- +25.3% since 2019
- Household spending a year
- $9.1B
- On rent and homeowner costs · $22,069 a household
- Housing spending per listing (U.S. = 100)
- 92
- 8% below the U.S.
- Listings per 10k households
- 44.1
- 44% above the U.S.
- Population, 2025
- 1,170,070
- +0.3% since 2020
See the real estate agents and brokers around any address in Contra Costa 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 Contra Costa 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
Contra Costa County scores 36 (lower middle) on the Groundwork market score for real estate agents and brokers, ranking #1,810 of 2,176 scored counties and #39 of 55 scored counties in California. That puts it in the bottom quarter of counties.
Household spending on rent and homeowner costs in Contra Costa County comes to about $9.1B a year: $22,069 per household, 32% above the U.S. average. Housing spending per office is 8% below 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 1,828 real estate agents and brokers on map listings in Contra Costa County as of September 2026. Chain locations make up 4% of them, against 4% across the U.S. Per 10,000 households, that is 44.1, 44% above the U.S. rate of 30.6.
Official counts show 742 businesses with payroll classed as offices of real estate agents and brokers in Contra Costa County in 2023, up 25.3% from 2019. That is one for every 559 households, against one for every 788 across the U.S. Since fiscal 2022, 13 SBA-backed loans worth $1.7M have gone to businesses classed as offices of real estate agents and brokers in Contra Costa County. Between 2020 and 2025, the population of Contra Costa County grew 0.3%, slower than the U.S. (+3.1%).
How Contra Costa 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 | Contra Costa County | California | U.S. |
|---|---|---|---|
| Listings per 10k households | 44.1 | 38.0 | 30.6 |
| Housing spending per listing (U.S. = 100) | 92 | 96 | 100 |
| Households per official establishment | 559 | 601 | 788 |
| Official establishment growth, 2019–2023 | +25.3% | +17.3% | +20.1% |
| Population growth, 2020–2025 | +0.3% | −0.4% | +3.1% |
| Spending per household on rent and homeowner costs | $22,069 | $19,977 | $16,661 |
| Median household income | $127,229 | $99,122 | $80,734 |
| Groundwork market score | 36 | 37 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 592 → 742+25.3% over the period
- Employees, 2023
- 1,706
- Annual payroll, 2023
- $157.3M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 1,82878 chain locations
- Listings at the U.S. rate for this spending
- 1,678The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 13
- Amount
- $1.7M
SBA-backed loans to businesses classed as offices of real estate agents and brokers in Contra Costa 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 Contra Costa County
- Population, 2025 estimate
- 1,170,070+0.3% since 2020
- Households
- 414,417
- Median age
- 41.2
- Homes lived in by their owners
- 68%
- Vehicles per household
- 2.0
- Land area
- 717 sq. mi.
- People per square mile
- 1,625
- Median household income
- $127,229+27.6% vs. 2015–2019, before inflation
- Average household income
- $174,872
- Median home value
- $866,800
- Jobs located here
- 382,994
- Daytime population
- 1,022,844Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Contra Costa 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 Contra Costa 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 Contra Costa 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 |
| 39Contra Costa County, CA | 36 | 1,828 | 44.1 | 92 | +0.3% | #1,810 of 2,176 |
Other business types in Contra Costa 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 estate34
- Real estate agents and brokers36
- Property management50
- Mortgage brokers and lenders31
- Home inspectors72
Funeral services
Questions
How many real estate agents and brokers are in Contra Costa County, CA?
As of September 2026, map listings count 1,828 real estate agents and brokers in Contra Costa County. 78 of them (4%) are chain locations. The listings count real estate agents and brokerages, commercial brokers included. Official counts show 742 businesses with payroll classed as offices of real estate agents and brokers in 2023, up 25.3% from 2019.
How much do households in Contra Costa County, CA spend on rent and homeowner costs?
About $9.1B a year, or $22,069 per household. That is 32% above the U.S. average (an index of 132, where 100 is the U.S. average). For the 1,828 real estate agents and brokers on map listings, housing spending per office is 8% below 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 414,417 households in Contra Costa County and national spending patterns by income.
How does Contra Costa County, CA compare with the U.S. for real estate agents and brokers?
Contra Costa County has 44.1 real estate agents and brokers per 10,000 households, 44% above the U.S. rate of 30.6. The index of housing spending per office is 92, where 100 is the U.S. At the U.S. ratio of real estate agents and brokers to household spending, Contra Costa County would have about 1,678, against 1,828 on map listings. There is one business with payroll in the industry for every 559 households, against one for every 788 across the U.S. The official count rose 25.3% from 2019 to 2023, against +20.1% for the U.S.
How fast is Contra Costa County, CA growing?
Population estimates put Contra Costa County at 1,170,070 people in 2025, up 0.3% since 2020, slower than the U.S. (+3.1%). It has 414,417 households. Median household income in Contra Costa County is $127,229, 58% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 27.6%, 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. Contra Costa County scores 36 for real estate agents and brokers (lower middle), #1,810 of 2,176 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Contra Costa 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 Contra Costa County
Screening a site or an acquisition in Contra Costa 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 Contra Costa 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.