ZIP code 95556: Humboldt County, CA
ZIP code 95556 is in Humboldt County (97%) and Siskiyou County (3.4%), California, outside any city or Census-designated place. It is in California's 2nd congressional district. Its state senate districts are State Senate District 2 (97%) and State Senate District 1 (3.4%); its state house districts are Assembly District 2 (97%) and Assembly District 1 (3.4%).
See it on the mapAll of California
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Humboldt County | 97% |
| Siskiyou County | 3.4% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Willow Creek-Hoopa Valley CCD | 97% |
| Happy Camp CCD | 3.4% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| California's 2nd congressional district (CA-02) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (CA-02) | Jared Huffman (D) | 202-225-5161 | 100% |
| 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 | 97% |
| State Senator (State Senate District 1) | Megan Dahle (R) | 530-879-7424 | 3.4% |
| Assembly Member (Assembly District 2) | Chris Rogers (Democratic) | 707-576-2526 | 97% |
| Assembly Member (Assembly District 1) | Heather Hadwick (R) | 530-223-6300 | 3.4% |
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
- Humboldt County website: https://humboldtgov.org/
- Humboldt County laws: search for the Humboldt County, California code of ordinances
- Siskiyou County website: https://www.siskiyoucounty.gov/
- Siskiyou County laws: search for the Siskiyou County, California code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 2 | 97% |
| State Senate District 1 | 3.4% |
| State house district | Share of ZIP residents |
|---|---|
| Assembly District 2 | 97% |
| Assembly District 1 | 3.4% |
Voting precincts
4 voting precincts overlap ZIP 95556. 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:95556")
ZIP 95556 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.