It is currently represented by Republican Devon Mathis.

[2] The district, one of the largest in California, encompasses a wide expanse of the High Desert, stretching from the Victor Valley to the Nevada and Arizona borders.

It also includes several communities in the San Bernardino Mountains.

The district's population is mostly concentrated in the southwest, with scattered settlements elsewhere.

[3] San Bernardino County – 23.1% [4] Due to redistricting, the 33rd district has been moved around different parts of the state.