ZIP code 50316: Des Moines, IA

ZIP code 50316 is in Des Moines, in Polk County, Iowa. It is in Iowa's 3rd congressional district. Its state senate districts are State Senate District 17 (85%) and State Senate District 20 (15%); its state house districts are State House District 33 (85%) and State House District 39 (15%).

16,785residents (2020 Census)

3.6 sq miland area

1cities and towns

1congressional district

9voting precincts

See it on the map All of Iowa

City and county

City or town	Share of ZIP residents
Des Moines	100%

County	Share of ZIP residents
Polk County	100%

Town or county subdivision	Share of ZIP residents
Lee township	99%
Des Moines township	1.3%

Congressional district

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

Elected officials

Office	Member	Contact	Share of residents
U.S. Representative (IA-03)	Zachary Nunn (R)	202-225-5476	100%
U.S. Senator	Chuck Grassley (R)	202-224-3744 · contact form	statewide
U.S. Senator	Joni Ernst (R)	202-224-3254 · contact form	statewide
State Senator (State Senate District 17)	Izaah Knox (Democratic)		85%
State Senator (State Senate District 20)	Mike Pike (R)		15%
State Representative (State House District 33)	Ruth Ann Gaines (Democratic)		85%
State Representative (State House District 39)	Rick Olson (Democratic)		15%

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

Des Moines website: https://www.catchdesmoines.com/
Des Moines laws: search for the Des Moines, Iowa code of ordinances
Polk County website: https://www.polkcountyiowa.gov/
Polk County laws: search for the Polk County, Iowa code of ordinances

State legislative districts

State senate district	Share of ZIP residents
State Senate District 17	85%
State Senate District 20	15%

State house district	Share of ZIP residents
State House District 33	85%
State House District 39	15%

Voting precincts

9 voting precincts overlap ZIP 50316. 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:50316")

ZIP 50316 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.