ZIP code 57034: Hudson, SD
ZIP code 57034 is in Hudson (42% of residents), in Lincoln County (91%), Union County (5.5%) and Sioux County (3.8%), South Dakota. 58% of its residents live outside city limits. It is in South Dakota's at-large congressional district (96%) and Iowa's 4th congressional district (3.8%). Its state senate districts are State Senate District 16 (96%) and State Senate District 2 (3.8%); its state house districts are State House District 16 (96%) and State House District 3 (3.8%).
See it on the mapAll of South Dakota
City and county
| City or town | Share of ZIP residents |
|---|---|
| Hudson | 42% |
| County | Share of ZIP residents |
|---|---|
| Lincoln County | 91% |
| Union County | 5.5% |
| Sioux County | 3.8% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Hudson town | 42% |
| Eden township | 24% |
| Norway township | 23% |
| Virginia township | 4.6% |
| Garfield township | 3.8% |
| Alcester township | 0.8% |
| Highland township | 0.5% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| South Dakota's at-large congressional district (SD-AL) | 96% |
| Iowa's 4th congressional district (IA-04) | 3.8% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (SD-AL) | Dusty Johnson (R) | 202-225-2801 | 96% |
| U.S. Representative (IA-04) | Randy Feenstra (R) | 202-225-4426 | 3.8% |
| 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) | 96% | |
| State Senator (State Senate District 2) | Jeff Taylor (R) | 3.8% | |
| State Representative (State House District 16) | John Shubeck (R) | 96% | |
| State Representative (State House District 16) | Karla Lems (R) | 96% | |
| State Representative (State House District 3) | Tom Jeneary (R) | 3.8% |
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
- Hudson laws: search for the Hudson, South Dakota code of ordinances
- Lincoln County website: http://lincolncountysd.org
- Lincoln County laws: search for the Lincoln County, 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 ZIP residents |
|---|---|
| State Senate District 16 | 96% |
| State Senate District 2 | 3.8% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 16 | 96% |
| State House District 3 | 3.8% |
Voting precincts
5 voting precincts overlap ZIP 57034. It also crosses into IA. Map them, with each precinct's share of the ZIP's residents.
Get this in your AI agent
Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:57034")
ZIP 57034 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.