Boundary Atlas

ZIP code 42020: Calloway County, KY

ZIP code 42020 is in Dexter (2.6% of residents), in Calloway County, Kentucky. 97% of its residents live outside city limits. It is in Kentucky's 1st congressional district. Its state senate district is State Senate District 1; its state house district is State House District 5.

2,256residents (2020 Census)
24.2 sq miland area
1cities and towns
1congressional district
2voting precincts

See it on the mapAll of Kentucky

City and county

City or townShare of ZIP residents
Dexter2.6%

CountyShare of ZIP residents
Calloway County100%

Town or county subdivisionShare of ZIP residents
Kirksey CCD67%
Murray CCD18%
Shiloh CCD15%

Congressional district

Congressional districtShare of ZIP residents
Kentucky's 1st congressional district (KY-01)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (KY-01)James Comer (R)202-225-3115100%
U.S. SenatorMitch McConnell (R)202-224-2541 · contact formstatewide
U.S. SenatorRand Paul (R)202-224-4343 · contact formstatewide
State Senator (State Senate District 1)Jason Howell (R)100%
State Representative (State House District 5)Mary Beth Imes (R)100%

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).

Local government

State legislative districts

State senate districtShare of ZIP residents
State Senate District 1100%

State house districtShare of ZIP residents
State House District 5100%

Voting precincts

2 voting precincts overlap ZIP 42020. 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:42020")

ZIP 42020 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.