Alcester, South Dakota
Alcester is a city in Union County, South Dakota, with 820 residents in 2020. It is in South Dakota's at-large congressional district. Its state senate district is State Senate District 16; its state house district is State House District 16.
County
| County | Share of residents |
|---|---|
| Union County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| South Dakota's at-large congressional district (SD-AL) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (SD-AL) | Dusty Johnson (R) | 202-225-2801 | 100% |
| U.S. Senator | John Thune (R) | 202-224-2321 · contact form | statewide |
| U.S. Senator | Mike Rounds (R) | 202-224-5842 · contact form | statewide |
| State Senator (State Senate District 16) | Kevin Jensen (R) | 100% | |
| State Representative (State House District 16) | John Shubeck (R) | 100% | |
| State Representative (State House District 16) | Karla Lems (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
- Alcester website: http://www.alcestersd.org/
- Alcester laws: search for the Alcester, South Dakota code of ordinances
- Union County website: http://unioncountysd.org
- Union County laws: search for the Union County, South Dakota code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 16 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 16 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Alcester: the share of that ZIP's residents living in it.
- 57001 (55%)
Get this in your AI agent
Your agent can get Alcester'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:4600700")
Alcester 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.