California / CA-48
California District 48
Score
Irregularity score 81 Very irregularLess compact than 87% of other congressional districts.
56th least compact of 429 nationally, 16th of 52 in California.
A score describes shape, not intent. Coastlines, rivers and the Voting Rights Act can all make a district irregular. How scores work
The three measures
- Polsby-Popper
- 0.10at least as compact as 9% of districts on this measure
Area compared with perimeter. Low for jagged or snaking edges.
- Reock
- 0.41at least as compact as 27% of districts on this measure
Area compared with the smallest circle around the district, counting only land. Low for stretched shapes.
- Convex hull
- 0.67at least as compact as 20% of districts on this measure
Area compared with a rubber band stretched around the district, counting only land. Low for bites and tentacles.
Each measure runs from 0 to 1, where 1 is a perfect circle or a shape with no dents.
Who lives here
Most of this district's voting-age residents (52.7%) belong to minority groups. The largest is Hispanic or Latino (35.9%). The Voting Rights Act can require districts that keep a minority community together so it can elect candidates it prefers, and those districts can be irregular on purpose. A district like this isn't necessarily drawn for that reason, and the site doesn't know whether this one was. Figures are from the 2020 Census. How these are counted
New lines for 2026
California used a different map in the 2026 election than in 2024: the 2025 Proposition 50 map (legislature-drawn; voter-approved). Source: California Secretary of State
Cities and towns
The largest places with people in this district, from the 2020 Census. A place split between districts shows how many of its residents live in this one.
- Escondido city111,321 of its 151,038 residents
- Temecula cityall 110,003 residents
- Vista city98,362 of its 98,381 residents
- San Marcos cityall 94,833 residents
- Hemet cityall 89,833 residents
- Palm Springs cityall 44,575 residents
- French Valley communityall 35,280 residents
- Oceanside city24,910 of its 174,068 residents
- East Hemet community18,904 of its 19,432 residents
- Homeland communityall 6,772 residents
And 15 smaller places. 11% of this district's people live outside any city, town or named community. How places are counted
ZIP codes
53 ZIP codes have residents in this district. 40 of them are split with other districts. A percentage is the share of that ZIP code's 2020 residents who live here.
Show all 53 ZIP codes
- 91905 (25%)
- 91934 (4%)
- 91948 (14%)
- 91962 (2%)
- 92003 (5%)
- 92004 (99%)
- 92024 (1%)
- 92025 (70%)
- 92026 (81%)
- 92027 (71%)
- 92028 (16%)
- 92029 (14%)
- 92036 (18%)
- 92056 (46%)
- 92059
- 92060
- 92061 (98%)
- 92065 (1%)
- 92066
- 92069
- 92070 (68%)
- 92078 (99%)
- 92081 (97%)
- 92082 (42%)
- 92083
- 92084 (97%)
- 92086
- 92096
- 92210
- 92220 (1%)
- 92234 (1%)
- 92258 (4%)
- 92260 (1%)
- 92262 (96%)
- 92264
- 92282 (1%)
- 92536 (82%)
- 92539 (63%)
- 92543
- 92544 (66%)
- 92545 (99%)
- 92548 (93%)
- 92549 (99%)
- 92561
- 92563 (29%)
- 92567 (3%)
- 92582 (1%)
- 92584 (1%)
- 92585 (9%)
- 92590 (59%)
- 92591
- 92592
- 92596 (99%)
These are the Census Bureau's ZIP code areas, which match residential ZIP codes closely. ZIP codes used only for PO boxes or a single organization aren't included. How ZIP codes are matched
2024 presidential vote
California drew new lines for 2026, and no 2024 results have been published for them. Where the votes come from
U.S. House
Marni von Wilpert, Democrat
Elected November 3, 2026, takes office January 3, 2027.
Unofficial results from the California Secretary of State, checked November 6, 2026. A race shows a winner once news decision desks have called it. Results become official when the state certifies them. Where this comes from
California's senators
- Alex Padilla, Democrat
- Adam B. Schiff, Democrat
Senators are elected by the whole state, so district lines don't change who they are. Senators serving as of November 6, 2026. Senators elected in November 2026 take office January 3, 2027. Where this comes from
Where it sits in California
- Very compact (0 to 19)
- Compact (20 to 39)
- Middle (40 to 59)
- Irregular (60 to 79)
- Very irregular (80 to 100)
The area outlined with dashes on the map, enlarged so its smaller districts can be seen.
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