Boundary Atlas

ZIP code 63664: Potosi, MO

ZIP code 63664 is in Potosi (30% of residents), in Washington County, Missouri. 70% of its residents live outside city limits. It is in Missouri's 3rd congressional district. Its state senate district is State Senate District 3; its state house districts are State House District 144 (53%) and State House District 118 (47%).

8,333residents (2020 Census)
287.7 sq miland area
1cities and towns
1congressional district
10voting precincts

See it on the mapAll of Missouri

City and county

City or townShare of ZIP residents
Potosi30%

CountyShare of ZIP residents
Washington County100%

Town or county subdivisionShare of ZIP residents
Breton township64%
Liberty township13%
Walton township10%
Concord township6.2%
Belgrade township3.1%
Harmony township2.9%
Richwoods township0.3%
Bellevue township0.2%
Johnson township0.1%

Congressional district

Congressional districtShare of ZIP residents
Missouri's 3rd congressional district (MO-03)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MO-03)Robert F. Onder, Jr. (R)202-225-2956100%
U.S. SenatorEric Schmitt (R)202-224-5721 · contact formstatewide
U.S. SenatorJosh Hawley (R)202-224-6154 · contact formstatewide
State Senator (State Senate District 3)Mike Henderson (R)100%
State Representative (State House District 144)Tony Harbison (R)53%
State Representative (State House District 118)Mike McGirl (R)47%

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 3100%

State house districtShare of ZIP residents
State House District 14453%
State House District 11847%

Voting precincts

10 voting precincts overlap ZIP 63664. Map them, with each precinct's share of the ZIP's residents.

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ZIP 63664 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.