ZIP code 01230 is in Great Barrington (25% of residents) and Housatonic (5.0%), in Berkshire County, Massachusetts. 70% of its residents live outside city limits. It is in Massachusetts's 1st congressional district. Its state senate district is Berkshire-Hampden-Franklin-Hampshire District; its state house district is 3rd Berkshire District.
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).
9 voting precincts overlap ZIP 01230.
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:01230")
ZIP 01230 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.