ZIP code 03583: Jefferson, NH
ZIP code 03583 is in Coos County, New Hampshire, outside any city or Census-designated place. It is in New Hampshire's 2nd congressional district. Its state senate district is State Senate District 1; its state house district is State House District Coos 04.
See it on the mapAll of New Hampshire
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Coos County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Jefferson town | 100% |
| Kilkenny township | land only |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| New Hampshire's 2nd congressional district (NH-02) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (NH-02) | Maggie Goodlander (D) | 202-225-5206 | 100% |
| U.S. Senator | Jeanne Shaheen (D) | 202-224-2841 · contact form | statewide |
| U.S. Senator | Margaret Wood Hassan (D) | 202-224-3324 · contact form | statewide |
| State Senator (State Senate District 1) | David Rochefort (R) | 100% | |
| State Representative (State House District Coos 04) | Seth King (R) | 100% |
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
- Coos County website: http://www.cooscountynh.us/
- Coos County laws: search for the Coos County, New Hampshire code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 1 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District Coos 04 | 100% |
Voting precincts
2 voting precincts overlap ZIP 03583. 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://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:03583")
ZIP 03583 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.