Callahan is an unincorporated community in Siskiyou County, California. Callahan is located on California State Route 3 11. 5 miles south-southeast of Etna. Callahan has a post office with ZIP code 96014.
Many residents of Callahan enjoy the outdoors without being in the full heat of the sun, since the beautiful foliage of the area provides you with lots of green shaded areas to enjoy. With so many things close by it's no surprise that commuting by walking is popular in this city, so go ahead and join your neighbors out and about.