Castella is a small, unincorporated town of 240 in the upper Sacramento Canyon of Shasta County, California. It is located 46 miles north of Redding on Interstate 5, and is home to Castle Crags State Park. It has a Chevron gas station/store and a post office. The ZIP Code is 96017. The community is inside area code 530.
Located in the Shasta Cascade area of Northern California, Castella sees many visitors and has a number of summer homes in the area. Visitors use Castella as a base to engage in nationally-recognized trout fishing in the nearby Sacramento McCloud and Klamath, Rivers, or come to see and climb Mount Shasta, Castle Crags or the Trinity Alps. Visitors also engage in nearby skiing (both alpine and cross-country), or bike or hike to the waterfalls, streams and lakes in the area, including nearby Mossbrae Falls, Lake Siskiyou, Castle Lake and Shasta Lake.
In the state legislature Castella is located in the 4th Senate District, represented by Republican Sam Aanestad, and in the 2nd Assembly District, represented by Republican Doug LaMalfa. Federally, Castella is located in California's 2nd congressional district, which has a Cook PVI of R +13 and is represented by Republican Wally Herger.