Are their English language schools in Costa Rica?

Yes.  There are several “international” schools that follow U.S. style curriculum in English and even mirror the U.S. school schedule since the local Costa Rican schools are off during the Costa Rican winter (April-November) the opposite of the U.S. school system.  There is also a British School (Colegio Britanico)  for expatd from the UK and a German school (Humboldt). 

American International School Pre-K – 12  website: www.aiscr.com

Blue Valley School Pre-K – 12  website: www.bluevalley.ed.cr 

British School Pre-K –12  website: British School of Costa Rica

Country Day School Pre-K – 12 website: www.cds.ed.cr

European School Pre-K – 12  www.europeanschool.com

Lighthouse School K-12  website:  http://www.lighthouse.ed.cr

Humboldt School Pre-K – 12  website http://www.humboldt.ed.cr/

International Christian School Pre-K – 12  website: www.icscr.net

Lincoln School Pre-K – 12   www.lincoln.ed.cr

Marian Baker  website: www.marianbakerschool.com

Pan American School Pre-K- 11  website: http://panam.ed.cr