Boundary Atlas

ZIP code 59223: McCone County, MT

ZIP code 59223 is in Fort Peck (15% of residents), in McCone County (60%), Garfield County (23%) and Valley County (17%), Montana. 85% of its residents live outside city limits. It is in Montana's 2nd congressional district. Its state senate districts are State Senate District 17 (60%), State Senate District 18 (23%) and State Senate District 16 (17%); its state house districts are State House District 34 (60%), State House District 35 (23%) and State House District 31 (17%).

110residents (2020 Census)
300.9 sq miland area
1cities and towns
1congressional district
4voting precincts

See it on the mapAll of Montana

City and county

City or townShare of ZIP residents
Fort Peck15%

CountyShare of ZIP residents
McCone County60%
Garfield County23%
Valley County17%

Town or county subdivisionShare of ZIP residents
North McCone CCD60%
North Garfield CCD23%
South Valley CCD17%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MT-02)Troy Downing (R)202-225-3211100%
U.S. SenatorSteve Daines (R)202-224-2651 · contact formstatewide
U.S. SenatorTim Sheehy (R)202-224-2644statewide
State Senator (State Senate District 17)Bob Phalen (R)406-939-118760%
State Senator (State Senate District 18)Ken Bogner (R)406-916-969023%
State Senator (State Senate District 16)Jonathan Windy Boy (Democratic)17%
State Representative (State House District 34)Jerry Schillinger (R)60%
State Representative (State House District 35)Gary Parry (R)23%
State Representative (State House District 31)Frank J. Smith (Democratic)17%

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 1760%
State Senate District 1823%
State Senate District 1617%

State house districtShare of ZIP residents
State House District 3460%
State House District 3523%
State House District 3117%

Voting precincts

4 voting precincts overlap ZIP 59223. 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:59223")

ZIP 59223 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.