Boundary Atlas

ZIP code 04345: Gardiner, ME

ZIP code 04345 is in Gardiner (46% of residents), in Kennebec County, Maine. 54% of its residents live outside city limits. It is in Maine's 1st congressional district (54%) and Maine's 2nd congressional district (46%). Its state senate district is State Senate District 14; its state house districts are State House District 54 (46%), State House District 55 (30%) and State House District 53 (24%).

12,052residents (2020 Census)
71.7 sq miland area
1cities and towns
2congressional districts
3voting precincts

See it on the mapAll of Maine

City and county

City or townShare of ZIP residents
Gardiner46%

CountyShare of ZIP residents
Kennebec County100%

Town or county subdivisionShare of ZIP residents
Gardiner city46%
West Gardiner town30%
Pittston town24%

Congressional districts

Congressional districtShare of ZIP residents
Maine's 1st congressional district (ME-01)54%
Maine's 2nd congressional district (ME-02)46%

This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (ME-01)Chellie Pingree (D)202-225-611654%
U.S. Representative (ME-02)Jared F. Golden (D)202-225-630646%
U.S. SenatorAngus S. King, Jr. (I)202-224-5344 · contact formstatewide
U.S. SenatorSusan M. Collins (R)202-224-2523 · contact formstatewide
State Senator (State Senate District 14)Craig Hickman (Democratic)100%
State Representative (State House District 54)Karen Montell (Democratic)46%
State Representative (State House District 55)Dan Shagoury (Democratic)30%
State Representative (State House District 53)Michael Lemelin (R)24%

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 14100%

State house districtShare of ZIP residents
State House District 5446%
State House District 5530%
State House District 5324%

Voting precincts

3 voting precincts overlap ZIP 04345. 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:04345")

ZIP 04345 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.