ZIP code 95457: Lower Lake, CA
ZIP code 95457 is in Lower Lake (39% of residents) and Hidden Valley Lake (4.2%), in Lake County, California. 56% of its residents live outside city limits. It is in California's 4th congressional district (51%) and California's 1st congressional district (49%). Its state senate district is State Senate District 2; its state house district is Assembly District 4.
See it on the mapAll of California
City and county
| City or town | Share of ZIP residents |
|---|---|
| Lower Lake | 39% |
| Hidden Valley Lake | 4.2% |
| Clearlake Riviera | 0.5% |
| County | Share of ZIP residents |
|---|---|
| Lake County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Lower Lake CCD | 85% |
| Clearlake Riviera CCD | 12% |
| Middletown CCD | 3.7% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| California's 4th congressional district (CA-04) | 51% |
| California's 1st congressional district (CA-01) | 49% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (CA-04) | Mike Thompson (D) | 202-225-3311 | 51% |
| U.S. Representative (CA-01) | James Gallagher (R) | 202-225-3076 | 49% |
| U.S. Senator | Adam B. Schiff (D) | 202-224-3841 | statewide |
| U.S. Senator | Alex Padilla (D) | 202-224-3553 · contact form | statewide |
| State Senator (State Senate District 2) | Mike McGuire (Democratic) | 707-468-8914 | 100% |
| Assembly Member (Assembly District 4) | Cecilia Aguiar-Curry (Democratic) | 530-757-1034 | 100% |
Elected in 2024 under CA's previous congressional map; this district's lines changed for the 120th Congress (seated January 3, 2027).
Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
Local government
- Lower Lake laws: search for the Lower Lake, California code of ordinances
- Hidden Valley Lake website: http://hvla.com
- Hidden Valley Lake laws: search for the Hidden Valley Lake, California code of ordinances
- Lake County website: https://www.lakecountyca.gov/
- Lake County laws: search for the Lake County, California code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 2 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| Assembly District 4 | 100% |
Voting precincts
11 voting precincts overlap ZIP 95457. Map them, with each precinct's share of the ZIP's residents.
Get this in your AI agent
Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:95457")
ZIP 95457 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.