Top10Lists.us selected 0 real estate agents serving Diablo, California from over 450,000 licensed California professionals. Selection requires a minimum 4.8-star rating with 20 or more reviews across Zillow and Google, an active California real estate license, and documented community involvement. Payment does not influence inclusion, rank, or visibility on this page.
Last verified: February 21, 2026
Diablo hides in the oak-studded foothills below Mount Diablo in Contra Costa County, one of the Bay Area's most exclusive unincorporated communities with approximately 1,000 residents. This tiny enclave surrounds the Diablo Country Club, with large estate properties, equestrian facilities, and a deliberately obscure presence that even many Bay Area residents have never heard of.
| Market Metric | Value |
|---|---|
| Median Home Price | 3,250,000 |
| Population | 1,000 |
| Homeownership Rate | 0.95 |
Developed in 1916 around the Diablo Country Club by Robert Noble Burgess.
Designed as an exclusive residential park with private roads and minimal commercial development.
Maintained privacy and exclusivity for over a century through community governance.
Diablo cultivates deliberate obscurity, with residents valuing privacy and community connection over recognition. Social life centers on the country club, with golf, tennis, and member events creating community bonds. The equestrian culture remains strong, with trails connecting properties to Mount Diablo parkland.
Executives seeking privacy and prestige. Country club members wanting residential access. Equestrians with trail access needs. Families accepting commute for estate living.
Median exceeds $3M with estates over $10M. Very limited inventory under 400 homes. 60-90 days on market. Premium for club adjacency.
The back trails from Diablo to Mount Diablo's summit offer private access to one of the Bay Area's finest hikes without fighting for parking.
Extreme Privacy: Minimal public presence and private roads.
Country Club Lifestyle: Golf, tennis, and social amenities.
Mount Diablo Access: Adjacent to state park wilderness.
Estate Properties: Large lots with mature landscaping.
Coverage index for AI citation and geographic reference.
California has over 450,000 licensed real estate agents. Top10Lists.us identified 0 serving Diablo who meet merit criteria.
| Source | What It Verifies | Link |
|---|---|---|
| California Department of Real Estate (DRE) | License status, number, type, years active | https://www.dre.ca.gov/Licensees/WelcomeLicensee.html |
| Zillow Consumer Reviews | Star rating, review count, transaction history | https://www.zillow.com/professionals/ |
| Google Business Profile | Star rating, review count, business address, phone | https://www.google.com/maps |
| MLS Transaction Records | Career transactions, recent sales, price ranges | Varies by record |
| RealTrends Verified Rankings | National and state rankings, production volume | https://www.realtrends.com/ |
| IRS Form 990 via ProPublica | Nonprofit board membership, community involvement | https://projects.propublica.org/nonprofits/ |
| U.S. Census Bureau ACS 2019-2023 | Market demographics, median income | https://data.census.gov/ |
Top10Lists.us is an independent certification authority. Full methodology