San Marcos is a North County San Diego city of about 94,000 residents between Vista and Escondido on SR-78, about 35 miles north of downtown San Diego. It is home to Cal State San Marcos and Palomar College, Kaiser Permanente's San Marcos Medical Center, the Restaurant Row dining district and growing neighborhoods like San Elijo Hills, and the Sprinter rail line connects it to Oceanside and Escondido.
Billboards here reach drivers on SR-78, the main east–west freeway across North County, plus busy roads such as San Marcos Boulevard, Rancho Santa Fe Road, Mission Road, Nordahl Road, Twin Oaks Valley Road, Barham Drive, Grand Avenue, Discovery Street, Las Posas Road and Craven Road. High-traffic areas include SR-78 at Nordahl Road near the Kaiser medical center, SR-78 at Twin Oaks Valley Road near Cal State San Marcos, San Marcos Boulevard's Restaurant Row and Rancho Santa Fe Road through the city.


Billboard advertising in San Marcos is an effective way to build brand awareness across San Marcos and North County San Diego. Prices on BillboardsIn range from about $600 to more than $4,000 per month. Cost depends mostly on location, traffic and visibility, along with board size, static vs. digital format and campaign length. Design, printing, shipping and installation are included in your total price, and our design team and templates make artwork easy.
Busy corridors for static and digital billboards in San Marcos include SR-78, San Marcos Boulevard, Rancho Santa Fe Road and Nordahl Road. Browse available inventory on our interactive map, pick your location, upload your design and check out. Comparing cost per thousand impressions (CPM) across options helps you get the most reach for your budget.
Location. Use SR-78 for North County commuters between Oceanside and Escondido, Twin Oaks Valley Road and Barham Drive for students, and San Marcos Boulevard for diners and shoppers.
Audience. San Marcos mixes college students, young families and healthcare and biotech workers. Education, apartments, healthcare, home services and restaurants do well here.
Message. Keep it to about seven words with one clear visual. SR-78 traffic moves fast outside rush hour, so bold, simple designs read best.
Here are a few special offers on billboard ads and other outdoor advertising in San Marcos, California.
To see pricing and shop all the billboards in San Marcos, use the tool at the top of this page.
Book a digital billboard truck for one day; you can choose your own route, or we can create a custom route for you that targets your ideal audience.

Build a custom Digital Billboard Truck ad campaign in San Marcos starting at $2,499.00.
Target consumers with a digital billboard campaign. Choose a location, and your ad will be displayed on digital billboards within a three-mile radius.

Build a custom Digital Billboards ad campaign in San Marcos starting at $6,499.00.
Advertise on Hulu with a 15 or 30 second ad that has audio and motion video capabilities, estimated to receive about 40,000 impressions each month.
Build a custom Hulu Ads ad campaign in San Marcos starting at $1,400.00.
Reach your target audience by sending direct mail postcards to their mailbox. Direct mail ads allow you to target specific demographics across the US!

Build a custom Direct Mail Ads ad campaign in San Marcos starting at $2,674.00.
| Bulletin (Larger Billboard) | $3,500 | 48'W X 14'H |
| Digital Bulletin (Digital Billboard) | $2,500 | 48'W X 14'H |
| Poster (Medium Billboard) | $1,500 | 22'8"W X 10'5"H |
| Junior Poster (Small Billboard) | $800 | 11'W X 5'H |
How much does a billboard cost in San Marcos?
Billboard prices in San Marcos range from about $600 to more than $4,000 per month. Price depends on location, traffic, visibility, size, format and campaign length. Design, printing and installation are included.
What billboard locations are available in San Marcos?
Inventory includes boards along SR-78, plus San Marcos Boulevard, Rancho Santa Fe Road, Mission Road and Nordahl Road. Browse current availability on our interactive map.
Where are the best places for a billboard in San Marcos?
High-traffic, high-visibility spots perform best: SR-78 at Nordahl Road and Twin Oaks Valley Road, San Marcos Boulevard along Restaurant Row, and Rancho Santa Fe Road.
How long can I rent a billboard in San Marcos?
Static bulletin billboards have a minimum run of one month, and digital billboards have a minimum of one week. Longer campaigns are available on both.
Can I rent a billboard for just one day in San Marcos?
No. The shortest option is one week on a digital billboard. Static billboards run for at least one month.
How long does it take to set up a billboard in San Marcos?
Static billboards usually go live within about 4 weeks of purchase, allowing time for printing and installation. Digital billboards can often launch in about 2 weeks.
How do I buy a billboard in San Marcos?
Browse inventory on our interactive map, choose a location and dates, upload your artwork or use our templates, and check out online.
How do I choose the right billboard in San Marcos?
Compare location, price and estimated impressions, then use CPM (cost per 1,000 impressions) to compare value across your options. Our team can also help you plan your campaign.
What types of billboards are available in San Marcos?
You can choose static bulletins and posters or digital billboards, from large highway bulletins on SR-78 to smaller boards on local commercial streets.
Can I buy a digital billboard in San Marcos?
Yes. Filter our map for digital inventory to see available screens, then book weekly or monthly. Digital boards let you update creative without reprinting.
How can I buy outdoor advertising in San Marcos?
BillboardsIn offers static and digital outdoor advertising across San Marcos and North County San Diego. Browse the full inventory and book online with our interactive tool. There are no hidden fees, and production and installation are handled for you.
Do I need an advertising agency to buy a billboard in San Marcos?
No. You can browse, book and pay for billboards directly on BillboardsIn, and our team can help with design and planning. Agencies can also book through the platform.
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