How many Islands are in California, United States?
There are 487 Islands in California, United States. The highest number of Islands in California are in San Francisco and Foster City with 22 businesses and 9 businesses, respectively. San Francisco makes up approximately 4.5% of all Islands in California.
Data last updated: July, 2025
Total Businesses
487
With Phone
0
With Website
0
With Hours
0
How can I download a list of Islands in California, United States into Excel?
You can download the complete list of 487 Islands data as an Excel file, along with geo-coded addresses, phone numbers and open hours by contacting our sales team.
Sample Data
Preview of Island businesses in California, United States
| Business Name | City | Rating | Reviews | Phone | Website |
|---|---|---|---|---|---|
|
Alcatraz Island
|
San Francisco
|
★
4.0
|
2,049
|
Not available | Not available |
|
Santa Catalina Island
|
Not available
|
★
4.0
|
1,793
|
Not available | Not available |
|
Coronado Island
|
Coronado
|
★
4.0
|
1,046
|
Not available | Not available |
|
Balboa Island
|
Newport Beach
|
★
4.0
|
794
|
Not available | Not available |
|
Angel Island
|
Tiburon
|
★
4.0
|
295
|
Not available | Not available |
|
Terminal Island
|
Not available
|
★
4.0
|
250
|
Not available | Not available |
|
Shelter Island
|
San Diego
|
★
4.0
|
226
|
Not available | Not available |
|
Harbor Island
|
San Diego
|
★
4.0
|
111
|
Not available | Not available |
|
Santa Cruz Island
|
Not available
|
★
4.0
|
108
|
Not available | Not available |
|
Seal Rock
|
San Diego
|
★
4.0
|
106
|
Not available | Not available |
Get access to all 477 remaining Islands with complete contact information, addresses, and business details.
Data last updated: July, 2025
Get Complete Dataset (487 Businesses)Top Cities in California
Cities with most Islands
| City | Business Count | Percentage |
|---|---|---|
|
San Francisco
|
22
|
4.5%
|
|
Foster City
|
9
|
1.8%
|
|
Del Monte Forest
|
4
|
0.8%
|
|
San Rafael
|
4
|
0.8%
|
|
Eureka
|
4
|
0.8%
|
|
Richmond
|
4
|
0.8%
|
|
Redwood City
|
4
|
0.8%
|
|
Alameda
|
3
|
0.6%
|
|
Crescent City
|
3
|
0.6%
|
|
Arcata
|
3
|
0.6%
|
What Data Do We Provide?
Our dataset for Islands in California, United States is one of the most comprehensive in the industry. As of August, 2025, we have compiled data on 487 verified listings.
Essential Business Details
Complete business name, full address, and operational hours for all 487 Islands
Contact Information
Direct phone numbers, email addresses, and website URLs for Islands across California, United States
Customer Engagement Metrics
Average ratings, total review counts, and customer feedback data from Islands in California, United States
Precise Geolocation Data
Exact latitude/longitude coordinates and regional distribution across 10 cities in California, United States
Complete Data Fields for Islands in California, United States:
Each of the 487 Islands records includes:
Business Attributes
Common features and services (10+ businesses)
How You Can Use Islands Data from California, United States
Our comprehensive dataset of 487 Islands in California, United States empowers you to reach the right audience through multiple channels. Here are key ways this data can give you a competitive edge in the Islands industry.
Market Research & Competitive Analysis
Analyze trends, saturation, and competitor presence across 10 cities in California, United States to uncover underserved areas and high-potential markets for Islands.
Lead Generation & Sales Prospecting
Find and reach Islands in California, United States using verified phone numbers, websites, and category filters for smarter, targeted prospecting.
Location Intelligence & Expansion Planning
Plan new Islands openings or rollouts using density maps and insights from our 487 listings to target low-competition, high-demand zones in California, United States.
AI & NLP Model Training
Train machine learning models with structured data and real user reviews from 487 Islands for improved sentiment analysis and recommendation systems.
Real Estate & Investment Insights
Evaluate commercial potential in California, United States by analyzing the distribution of Islands across 10 cities and their activity trends.
Email Marketing Campaigns
Run targeted email campaigns to Islands in California, United States using verified email addresses for personalized outreach and improved conversion rates.
Cold Calling & Telemarketing
Use up-to-date phone numbers from our 487 Islands database to initiate effective conversations and improve call conversion rates.
Direct Mail Marketing
Send promotional materials to Islands across California, United States using accurate mailing addresses for targeted delivery and higher response rates.
Social Media Outreach
Engage Islands in California, United States via Instagram, LinkedIn, or Facebook using curated profile data for multi-channel marketing.
Footfall & Demand Estimation
Estimate local foot traffic and demand by analyzing the concentration of Islands in specific regions of California, United States and their popularity metrics.
Local SEO & Digital Services
Optimize marketing strategies for Islands by studying GMB listings, ratings, and categories used by top-performing competitors in California, United States.
Mapping & Navigation Integration
Add Islands POI data to your apps for delivery, logistics, or travel using accurate coordinates from 487 verified locations in California, United States.