Rancho Cucamonga, California
Rancho Cucamonga is a city in San Bernardino County, California, with 174,570 residents in 2020. It spans 3 congressional districts: CA-33 (53%), CA-28 (42%) and CA-35 (4.6%). It spans 2 state senate and 2 state house districts.
County
| County | Share of residents |
|---|---|
| San Bernardino County | 100% |
Congressional districts
| Congressional district | Share of residents |
|---|---|
| California's 33rd congressional district (CA-33) | 53% |
| California's 28th congressional district (CA-28) | 42% |
| California's 35th congressional district (CA-35) | 4.6% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | L. Dennis Michael | 909-477-2700 | citywide |
| U.S. Representative (CA-33) | Pete Aguilar (D) | 202-225-3201 | 53% |
| U.S. Representative (CA-28) | Judy Chu (D) | 202-225-5464 | 42% |
| U.S. Representative (CA-35) | Norma J. Torres (D) | 202-225-6161 | 4.6% |
| 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 29) | Eloise Reyes (Democratic) | 909-888-5360 | 74% |
| State Senator (State Senate District 25) | Sasha Pérez (Democratic) | 818-409-0402 | 26% |
| Assembly Member (Assembly District 50) | Robert Garcia (Democratic) | 909-966-5090 | 79% |
| Assembly Member (Assembly District 41) | John Harabedian (Democratic) | 626-351-1917 | 21% |
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: Mayors: Open States (public domain); State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
Local government
- Rancho Cucamonga website: http://www.CityofRC.us
- Rancho Cucamonga council: Rancho Cucamonga City Council
- Rancho Cucamonga laws: search for the Rancho Cucamonga, California code of ordinances
- San Bernardino County website: https://main.sbcounty.gov/
- San Bernardino County laws: search for the San Bernardino County, California code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 29 | 74% |
| State Senate District 25 | 26% |
| State house district | Share of residents |
|---|---|
| Assembly District 50 | 79% |
| Assembly District 41 | 21% |
ZIP codes
Percentages mark ZIPs only partly in Rancho Cucamonga: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Rancho Cucamonga's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:place:0659451")
Rancho Cucamonga here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.