Lake Poinsett, South Dakota
Lake Poinsett is a Census-designated place (an unincorporated community) in Hamlin County (90% of residents) and Brookings County (9.6%), South Dakota, with 501 residents in 2020. It is in South Dakota's at-large congressional district. It spans 2 state senate and 2 state house districts.
County
| County | Share of residents |
|---|---|
| Hamlin County | 90% |
| Brookings County | 9.6% |
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 4) | Stephanie Sauder (R) | 90% | |
| State Senator (State Senate District 8) | Casey Crabtree (R) | 9.6% | |
| State Representative (State House District 4) | Dylan Jordan (R) | 90% | |
| State Representative (State House District 4) | Kent Roe (R) | 90% | |
| State Representative (State House District 8) | Tim Reisch (R) | 9.6% | |
| State Representative (State House District 8) | Tim Walburg (R) | 9.6% |
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
- Lake Poinsett laws: search for the Lake Poinsett, South Dakota code of ordinances
- Hamlin County website: https://hamlinco.us/
- Hamlin County laws: search for the Hamlin County, South Dakota code of ordinances
- Brookings County website: http://www.brookingscountysd.gov
- Brookings County laws: search for the Brookings County, South Dakota code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 4 | 90% |
| State Senate District 8 | 9.6% |
| State house district | Share of residents |
|---|---|
| State House District 4 | 90% |
| State House District 8 | 9.6% |
ZIP codes
Percentages mark ZIPs only partly in Lake Poinsett: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Lake Poinsett'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:4635480")
Lake Poinsett here is the Census Bureau's place boundary as of January 1, 2025 (a Census-designated place, which has no municipal government). Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.