ZIP code 59720: Madison County, MT
ZIP code 59720 is in Madison County, Montana, outside any city or Census-designated place. It is in Montana's 1st congressional district. Its state senate district is State Senate District 35; its state house district is State House District 69.
See it on the mapAll of Montana
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Madison County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Madison Valley CCD | 100% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Montana's 1st congressional district (MT-01) | 100% |
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 35 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 69 | 100% |
Voting precincts
2 voting precincts overlap ZIP 59720. 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:59720")
ZIP 59720 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.