Boundary Atlas

Ipswich, South Dakota

Ipswich is a city in Edmunds County, South Dakota, with 928 residents in 2020. It is in South Dakota's at-large congressional district. Its state senate district is State Senate District 23; its state house district is State House District 23.

928residents (2020 Census)
1.3 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Edmunds County100%

Congressional district

Congressional districtShare of residents
South Dakota's at-large congressional district (SD-AL)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (SD-AL)Dusty Johnson (R)202-225-2801100%
U.S. SenatorJohn Thune (R)202-224-2321 · contact formstatewide
U.S. SenatorMike Rounds (R)202-224-5842 · contact formstatewide
State Senator (State Senate District 23)Mark Lapka (R)100%
State Representative (State House District 23)Scott Moore (R)100%
State Representative (State House District 23)Spencer Gosch (R)100%

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 23100%

State house districtShare of residents
State House District 23100%

ZIP codes

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

Get this in your AI agent

Your agent can get Ipswich's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:place:4631860")

Ipswich 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.