ZIP code 03873: Sandown, NH
ZIP code 03873 is in Rockingham County, New Hampshire, outside any city or Census-designated place. It is in New Hampshire's 1st congressional district. Its state senate districts are State Senate District 23 (100%) and State Senate District 19 (0.1%); its state house districts are State House District Rockingham 09 (100%) and State House District Rockingham 15 (0.1%).
See it on the mapAll of New Hampshire
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Rockingham County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Sandown town | 100% |
| Hampstead town | 0.1% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| New Hampshire's 1st congressional district (NH-01) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (NH-01) | Chris Pappas (D) | 202-225-5456 | 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 23) | Bill Gannon (R) | 100% | |
| State Senator (State Senate District 19) | Regina Birdsell (R) | 0.1% | |
| State Representative (State House District Rockingham 09) | Donald Selby (R) | 100% | |
| State Representative (State House District Rockingham 09) | Vicki Wilson (R) | 100% | |
| State Representative (State House District Rockingham 15) | Joe Guthrie (R) | 0.1% | |
| State Representative (State House District Rockingham 15) | Lilli Walsh (R) | 0.1% |
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
- Rockingham County website: http://co.rockingham.nh.us
- Rockingham County laws: search for the Rockingham County, New Hampshire code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 23 | 100% |
| State Senate District 19 | 0.1% |
| State house district | Share of ZIP residents |
|---|---|
| State House District Rockingham 09 | 100% |
| State House District Rockingham 15 | 0.1% |
Voting precincts
2 voting precincts overlap ZIP 03873. 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:03873")
ZIP 03873 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.