CA
California districts
Every published boundary for California, on the map in force — 52 congressional districts, 40 state senate districts, 80 state house districts, 58 counties. Projected at build time; no mapping library, no tiles, no runtime requests.
California is not on the map its delegation was elected under. The
federal layer is the 119th Congress, drawn from Census TIGER/Line 2024.
California has since enacted
AB604,
first used in the 2026 cycle — and that is what
is drawn here.
Mid-decade redraw enacted via Proposition 50 (approved 64.4%, 2025-11-04) — applies 2026 through 2030 elections Federal
52 congressional districts
Select a district
| District |
|---|
| CA-01 |
| CA-02 |
| CA-03 |
| CA-04 |
| CA-05 |
| CA-06 |
| CA-07 |
| CA-08 |
| CA-09 |
| CA-10 |
| CA-11 |
| CA-12 |
| CA-13 |
| CA-14 |
| CA-15 |
| CA-16 |
| CA-17 |
| CA-18 |
| CA-19 |
| CA-20 |
| CA-21 |
| CA-22 |
| CA-23 |
| CA-24 |
| CA-25 |
| CA-26 |
| CA-27 |
| CA-28 |
| CA-29 |
| CA-30 |
| CA-31 |
| CA-32 |
| CA-33 |
| CA-34 |
| CA-35 |
| CA-36 |
| CA-37 |
| CA-38 |
| CA-39 |
| CA-40 |
| CA-41 |
| CA-42 |
| CA-43 |
| CA-44 |
| CA-45 |
| CA-46 |
| CA-47 |
| CA-48 |
| CA-49 |
| CA-50 |
| CA-51 |
| CA-52 |
Every layer
4 partitions, one point.
Click anywhere on the map, or focus it and use the arrow keys. Each layer covers the same ground and none of them nests inside another — which is why this reads a point rather than expanding a row.
Click the map, or focus it and use the arrow keys.
ca-congressional-2025 (52) · ca-state-senate (40) · ca-state-house (80) · us-counties (58). A congressional district contains no whole number of state house
districts or counties, which is why this reads a point rather than
expanding a row.
Geometry simplified to 0.00561° (~400 m).
A probe near a boundary is not authoritative — at this resolution the
line on screen can sit a few hundred metres from the legal one, and near a
border that is the whole answer. For an address, ask cbdistricts.
Provenance
Where each layer came from.
| Layer | Districts | Source layer | Tolerance | Size | Read |
|---|---|---|---|---|---|
| Congressional | 52 | ca-congressional-2025 | 0.00561° | 144 KB | 2026-08-15 |
| State Senate | 40 | ca-state-senate | 0.00559° | 118 KB | 2026-08-15 |
| State House | 80 | ca-state-house | 0.00559° | 153 KB | 2026-08-15 |
| County | 58 | us-counties | 0.00559° | 98 KB | 2026-08-15 |
No representative and no party, deliberately. The districts service
returns a representative for 441 of 441 congressional districts, and the
values are scraped prose — the word
"district" is the
representative of ten of them, and 21 records name a party that contradicts
their own party field. Both fields are refused at the point the data is
fetched rather than printed under a real heading. Boundaries are sound;
this is a geography page, not a who-represents-you page.
This page inlines 512 KB of geometry and loads no
mapping library, no tiles and no third-party requests. Boundaries are
simplified for display and are not a legal description — near a boundary
the map is not authoritative.