Frederick, South Dakota
Frederick is a town in Brown County, South Dakota, with 215 residents in 2020. It is in South Dakota's at-large congressional district. Its state senate district is State Senate District 1; its state house district is State House District 1.
County
| County | Share of residents |
|---|---|
| Brown 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 1) | Michael Rohl (R) | 100% | |
| State Representative (State House District 1) | Logan Manhart (R) | 100% | |
| State Representative (State House District 1) | Nick Fosness (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
- Frederick laws: search for the Frederick, South Dakota code of ordinances
- Brown County website: http://www.brown.sd.us
- Brown County laws: search for the Brown County, South Dakota code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 1 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 1 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Frederick: the share of that ZIP's residents living in it.
- 57441 (42%)
Get this in your AI agent
Your agent can get Frederick'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:4622860")
Frederick 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.