Boundary Atlas

ZIP code 06339: Ledyard, CT

ZIP code 06339 is in Mashantucket (1.9% of residents), in Southeastern Connecticut Planning Region, Connecticut. 98% of its residents live outside city limits. It is in Connecticut's 2nd congressional district. Its state senate districts are State Senate District 19 (100%) and State Senate District 18 (0.2%); its state house districts are State House District 43 (85%) and State House District 45 (15%).

8,346residents (2020 Census)
25.6 sq miland area
1cities and towns
1congressional district
3voting precincts

See it on the mapAll of Connecticut

City and county

City or townShare of ZIP residents
Mashantucket1.9%

CountyShare of ZIP residents
Southeastern Connecticut Planning Region100%

Town or county subdivisionShare of ZIP residents
Ledyard town100%
Preston town0.2%

Congressional district

Congressional districtShare of ZIP residents
Connecticut's 2nd congressional district (CT-02)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 19100%
State Senate District 180.2%

State house districtShare of ZIP residents
State House District 4385%
State House District 4515%

Voting precincts

3 voting precincts overlap ZIP 06339. 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:06339")

ZIP 06339 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.