ZIP code 01904 is in Lynn, in Essex County, Massachusetts. It is in Massachusetts's 6th congressional district. Its state senate district is Third Essex District; its state house districts are 10th Essex District (48%), 9th Essex District (32%) and 11th Essex District (20%).
Members serving now (119th Congress, until January 3, 2027). Source: Members of Congress: the @unitedstates project, congress-legislators (CC0).
State legislative districts
State senate district
Share of ZIP residents
Third Essex District
100%
State house district
Share of ZIP residents
10th Essex District
48%
9th Essex District
32%
11th Essex District
20%
Voting precincts
11 voting precincts overlap ZIP 01904.
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:01904")
ZIP 01904 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.