[3] Prior to redistricting in 2011, the district covered the inland portions of Ventura and Santa Barbara counties, as well as a sparsely-populated portion of the Ventura County coast.

Redistricting in 2021 removed the northern part of San Luis Obispo County and added the cities of Ojai and Ventura.

As of the 2020 redistricting, California's 24th congressional district is located on the southern edge of the Central Coast.

They are partitioned by Highway 1, Cayucos Creek Rd, Thunder Canyon Rd, Old Creek Rd, Santa Rita Rd, Tara Creek, Fuentes Rd, Highway 41, San Miguel Rd, Palo Verde Rd, Old Morro Rd, Los Osos Rd, San Rafael Rd, Atascadero Ave, San Antonio Rd, N Santa Margarita Rd, Santa Clara Rd, Rocky Canyon Truck Trail, Highway 229, Lion Ridge Rd, O'Donovan Rd, Highway 58, Calf Canyon Highway, La Panza Rd, Upton Canyon Rd, Camatta Creek Rd, San Juan Creek, and Bitterwater Rd.

The 24th district takes in the cities of San Luis Obispo, Arroyo Grande, Morro Bay, Grover Beach, and Pismo Beach as well as the census-designated places Nipomo, Los Osos, Cayucos, Garden Farms, Santa Margarita, California Polytechnic State University, Los Ranchos, Edna, Avila Beach, Oceano, Los Berros, Callender, Blacklake, and Woodlands Ventura County is split between this district and the 26th district.