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Ricardo Isidro Diaz

Ricardo Isidro Diaz
Real Estate Agent (Broker)
Rancho Cucamonga - CA

Broker (CA: 01380372)

27 years experience

REALTOR® 2 Active Listings Serves San Bernardino County, CA
View on Realtor.com

About Ricardo Diaz

Rick Diaz serves as the Founder and President of Mainstreet Realtors, a firm he established in 2008 after beginning his real estate career in 2000 with his family's business. While pursuing a degree in business at the University of La Verne, Rick honed his skills and knowledge in the industry. Under his leadership, Mainstreet Realtors has expanded to three locations: Huntington Beach, Rancho Cucamonga, and Glendora, enhancing the firm's ability to serve clients effectively.

With two decades of experience as a broker, business owner, and dedicated agent, Rick brings a wealth of expertise to every transaction. His services include:

- Virtual consultations tailored to client needs
- Comprehensive marketing strategies featuring 3D virtual tours, professional videos, and aerial photography
- In-depth understanding of buyer and seller requirements
- Current and thorough knowledge of available properties
- Exceptional negotiation skills
- Specialized insight into financing options to secure the best rates and terms
- A dedicated team of professionals to support all facets of the real estate process
- A streamlined service program for buyers, facilitating quick and easy home previews

Rick is committed to delivering an unparalleled customer experience and is always available to assist clients with their real estate needs. His approach is customized and holistic, leveraging the latest technology to provide extensive options, education, and training for both clients and agents.

In today’s competitive market, Rick emphasizes the importance of having the right resources and technology at your disposal. He invites potential clients to reach out and discover how his team can work diligently on their behalf.

San Bernardino County, CA Real Estate Market Analysis (Single Family Homes)

$629,668
Avg. Listing Price
From Ricardo's portfolio
3.4 / 2.4
Avg. Beds/Baths
Typical property size
1,873 sf
Avg. Square Footage
Interior living space
6280
Active Listings
Current inventory

San Bernardino County represents one of California's most expansive and diverse real estate markets, stretching across over 20,000 square miles from the urban corridors near Los Angeles to the vast Mojave Desert. This geographic giant encompasses everything from affordable suburban communities to luxury mountain retreats, creating a complex tapestry of housing markets that serves nearly 2.2 million residents. The sheer scale and variety of this market has attracted a substantial professional community, with 11,944 total actively licensed agents currently serving the region.

What makes San Bernardino County particularly interesting is its role as both a destination market for buyers seeking affordability and a logistics hub driving commercial real estate demand. The county benefits from major transportation corridors and proximity to Los Angeles, yet maintains significantly lower median home prices than coastal California markets. With all 11,944 agents maintaining email contact information, the market demonstrates a high level of digital connectivity and professional accessibility that reflects its growing sophistication.

Major San Bernardino County, California Real Estate Markets

The county's real estate landscape divides into several distinct regional markets, each with unique characteristics and price points. The western communities like Rancho Cucamonga, Ontario, and Fontana form part of the greater Los Angeles metropolitan area, featuring established suburban neighborhoods and strong commercial development. These cities have experienced significant appreciation as buyers migrate inland seeking more affordable alternatives to Orange County and Los Angeles proper.

Moving eastward, cities like San Bernardino, Redlands, and Riverside create the urban core of the Inland Empire, while mountain communities such as Big Bear Lake and Lake Arrowhead offer recreational and second-home markets. The High Desert region, including Victorville, Hesperia, and Apple Valley, represents some of the most affordable housing options in Southern California, attracting first-time buyers and investors alike. This geographic diversity creates multiple micro-markets within the broader county framework.

Market Dynamics and Geographic Complexity

San Bernardino County's real estate market operates on multiple speed cycles simultaneously, with urban areas near the LA basin moving at a faster pace than rural desert communities. The logistics and distribution industry has become a major economic driver, with massive warehouse developments in cities like Rialto and Colton creating both employment opportunities and industrial real estate demand. This economic diversification has helped stabilize the housing market during various economic cycles.

Climate variation across the county adds another layer of complexity, from Mediterranean conditions in the foothills to true desert environments in the eastern regions. These microclimates influence everything from construction costs to seasonal demand patterns, requiring real estate professionals to understand highly localized market conditions. The result is a market where expertise in one area doesn't necessarily translate to success in another, despite being within the same county boundaries.

Why Businesses Need San Bernardino County, California Agent Contact Data

The extensive network of real estate professionals across San Bernardino County represents a valuable business resource for companies targeting homeowners, investors, and commercial developers. With agents spread across such diverse geographic and economic territories, businesses can reach multiple demographic segments through targeted outreach campaigns. Mortgage lenders, home improvement companies, and financial services providers particularly benefit from connecting with agents who understand local market nuances and client needs.

The comprehensive email accessibility of all 11,944 licensed agents creates unprecedented opportunities for B2B marketing and partnership development. Companies launching new products or services can efficiently test different approaches across various market segments within the county, from luxury mountain properties to affordable starter homes in the High Desert. This level of professional connectivity makes San Bernardino County an ideal testing ground for real estate-related business strategies.

Contact Information

Brokerage
Mainstreet Realtors

Office Website
Office Address
10300 4th St Ste 100
Rancho Cucamonga, CA  91730
(San Bernardino County)
Office Phone
888-964-4070
Office Fax
909-463-0788
Mobile
626-804-1540
Email
rick@************

Service Areas

Rancho Cucamonga: CA San Antonio Heights: CA Upland: CA Fontana: CA Jurupa Valley: CA San Bernardino: CA Rialto: CA San Dimas: CA Glendora: CA La Verne: CA Claremont: CA Bloomington: CA Muscoy: CA Devore Heights: CA Vincent: CA Irwindale: CA Citrus: CA Azusa: CA Baldwin Park: CA Chino: CA Pomona: CA Phillips Ranch: CA City Of Industry: CA Ontario: CA Eastvale: CA Norco: CA Home Gardens: CA Corona: CA Industry: CA Diamond Bar: CA Chino Hills: CA

Current Property Listings

As of 1/31/2026, Ricardo Diaz has 2 properties for sale in Rancho Cucamonga and surrounding areas.

$699,900

Listed 2026-01-30

8052 Valle Vista Dr
Rancho Cucamonga, CA  91730

Beds: 3.0
Baths: 3.0
Sq Ft: 1,878
Lot: 1,877 sf
Condos Map
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$924,990

Listed 2026-01-27

443 S State St
Los Angeles, CA  90033

Beds:
Baths: 4.0
Sq Ft:
Lot: 6,373 sf
Multi Family Map
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Current Property Rentals

Ricardo Diaz currently has no rental properties available in Rancho Cucamonga and surrounding areas. Check back later.