ZIP Code 91387 is within two congressional districts: the 27th US Congressional District of California currently represented by Democrat George Whitesides and the 29th US Congressional District of California currently represented by Democrat Luz Maria Rivas.
ZIP Code 91387 is within two California State Assembly districts: the California State Assembly District 38 currently represented by Democrat Steve Bennett. the California State Assembly District 39 currently represented by . ZIP Code 91387 is within two California State Senate districts: California State Senate District 21 currently represented by Republican Scott Wilk and California State Senate District 25 currently represented by Democrat Anthony Portantino, Jr..