Boundary Atlas

ZIP code 50853: Massena, IA

ZIP code 50853 is in Massena (52% of residents), in Cass County (98%) and Adams County (1.6%), Iowa. 48% of its residents live outside city limits. It is in Iowa's 3rd congressional district. Its state senate district is State Senate District 9; its state house districts are State House District 18 (98%) and State House District 17 (1.6%).

688residents (2020 Census)
74.7 sq miland area
1cities and towns
1congressional district
4voting precincts

See it on the mapAll of Iowa

City and county

City or townShare of ZIP residents
Massena52%

CountyShare of ZIP residents
Cass County98%
Adams County1.6%

Town or county subdivisionShare of ZIP residents
Massena township77%
Victoria township16%
Edna township3.5%
Union township1.9%
Washington township1.6%

Congressional district

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 9100%

State house districtShare of ZIP residents
State House District 1898%
State House District 171.6%

Voting precincts

4 voting precincts overlap ZIP 50853. 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:50853")

ZIP 50853 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.