ZIP code 37397 is in Whitwell (17% of residents), Powells Crossroads (13%) and Griffith Creek (4.7%), in Marion County (86%) and Sequatchie County (14%), Tennessee. 66% of its residents live outside city limits. It is in Tennessee's 4th congressional district. Its state senate district is State Senate District 10; its state house districts are State House District 39 (86%) and State House District 31 (14%).
9 voting precincts overlap ZIP 37397.
Map them, with each precinct's share of the ZIP's residents.
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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:37397")
ZIP 37397 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.