Castella Lodging - Castella Restaurants - Castella Activities View all listings in Castella Castella Facts Population: 250 Driving Time / Directions: Castella Weather: View Current Weather Castella Map: View Location On Map Castella Zip Code: 96017 Castella Elevation: 1900 feet Castella's Local Events View all upcoming events here... Top Picks for Castella Castle Crags State Park Specials near Castella View all specials in Shasta Cascade Region...