Castaic, California (also spelled Castec, or Kashtiq), is an unincorporated community located in the northern part of Los Angeles County, California. Many thousands of motorists pass through Castaic daily as they drive to or from Los Angeles on Interstate 5.

Castaic Lake is part of the California Water Project and is the site of a hydro-electric power plant. Castaic is located approximately 40 miles (64 km) northwest of the downtown Los Angeles Civic Center and directly north of the city of Santa Clarita, California


This region experiences warm and dry summers, with no average monthly temperatures above 71.6 °F (22.0 °C). During the months of June though September, however, the average high temperature ranges from the 90s F (30s C) to above 100 °F (38 °C). According to the Köppen Climate Classification system, Castaic has a warm-summer Mediterranean climate, abbreviated “Csb” on climate maps

The unemployment rate in Castaic (zip 91384), California, is 5.20%, with job growth of 1.37%. Future job growth over the next ten years is predicted to be 37.55%.

Castaic (zip 91384), California Taxes
Castaic (zip 91384), California,sales tax rate is 9.00%. Income tax is 8.00%.

Castaic (zip 91384), California Income and Salaries
The income per capita is $28,491, which includes all adults and children. The median household income is $102,273.