Boundary Atlas

Forest City, Iowa

Forest City is a city in Winnebago County (92% of residents) and Hancock County (8.3%), Iowa, with 4,285 residents in 2020. It is in Iowa's 4th congressional district. It spans 2 state senate and 2 state house districts.

4,285residents (2020 Census)
4.6 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Winnebago County92%
Hancock County8.3%

Congressional district

Congressional districtShare of residents
Iowa's 4th congressional district (IA-04)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IA-04)Randy Feenstra (R)202-225-4426100%
U.S. SenatorChuck Grassley (R)202-224-3744 · contact formstatewide
U.S. SenatorJoni Ernst (R)202-224-3254 · contact formstatewide
State Senator (State Senate District 5)Dave Rowley (R)92%
State Senator (State Senate District 28)Dennis Guth (R)8.3%
State Representative (State House District 9)Henry Stone (R)92%
State Representative (State House District 56)Mark Thompson (R)8.3%

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 residents
State Senate District 592%
State Senate District 288.3%

State house districtShare of residents
State House District 992%
State House District 568.3%

ZIP codes

Percentages mark ZIPs only partly in Forest City: the share of that ZIP's residents living in it.

Get this in your AI agent

Your agent can get Forest City's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:place:1928380")

Forest City here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.