Beautiful San Marcos California is located approximatly 30 miles north of downtown San Diego in North County. Mild Climate and an average temp. of 70 degrees make San Marcos an Ideal place to live. San Marcos also includes several smaller niche communities such as Lake San Marcos and San Elijo Hills. San Marcos also hosts a California State University located right off California Hwy 78. If you are ever in town visiting family or friends be sure to check out restraunt row which hosts many popular dining options like the San Marcos Brewery. Also Feel free to visit Lake View Florist for all your floral needs! For more information visit http://www.ci.san-marcos.ca.us/ city of San Marcos Website.