Boundary Atlas

Aberdeen, South Dakota

Aberdeen is a city in Brown County, South Dakota, with 28,483 residents in 2020. It is in South Dakota's at-large congressional district. It spans 2 state senate and 2 state house districts.

28,483residents (2020 Census)
16.6 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Brown 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 3)Carl Perry (R)90%
State Senator (State Senate District 23)Mark Lapka (R)9.7%
State Representative (State House District 3)Al Novstrup (R)90%
State Representative (State House District 3)Brandei Schaefbauer (R)90%
State Representative (State House District 23)Scott Moore (R)9.7%
State Representative (State House District 23)Spencer Gosch (R)9.7%

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 390%
State Senate District 239.7%

State house districtShare of residents
State House District 390%
State House District 239.7%

ZIP codes

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

Get this in your AI agent

Your agent can get Aberdeen'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:4600100")

Aberdeen 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.