Response review

Currently, CA-31 is represented by Gil Cisneros (D), who's held the seat since January 2025. The district covers the San Gabriel Valley in Los Angeles County, including cities like El Monte, West Covina, Baldwin Park, Azusa, and San Dimas.

A couple of things worth knowing:

District lines are changing. California passed Proposition 50 in November 2025, redrawing congressional maps. The new boundaries take effect after the November 2026 election, so "CA-31" as a district could represent a different set of communities starting January 2027. Cisneros is running for reelection in the June 2026 primary against Erskine Levi. 
Ballotpedia
If you're asking "who represents me" rather than "who represents the CA-31 numbered district," it's worth double-checking your address against the current map, since redistricting can shift which district a given address falls into even before the number changes hands.

If you want, I can help you look up your specific address to confirm you're actually in Cisneros's district (versus a neighboring one) — just let me know your city or ZIP.

Cited sources

• https://ballotpedia.org/California's_31st_Congressional_District_election,_2026