Beloit, Wisconsin
Beloit is a city in Rock County, Wisconsin, with 36,657 residents in 2020. It is in Wisconsin's 1st congressional district. Its state senate district is State Senate District 15; its state house district is Assembly District 45.
County
| County | Share of residents |
|---|---|
| Rock County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Wisconsin's 1st congressional district (WI-01) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (WI-01) | Bryan Steil (R) | 202-225-3031 | 100% |
| U.S. Senator | Ron Johnson (R) | 202-224-5323 · contact form | statewide |
| U.S. Senator | Tammy Baldwin (D) | 202-224-5653 · contact form | statewide |
| State Senator (State Senate District 15) | Mark Spreitzer (Democratic) | 100% | |
| Assembly Member (Assembly District 45) | Clint Anderson (Democratic) | 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
- Beloit website: http://www.beloitwi.gov
- Beloit laws: search for the Beloit, Wisconsin code of ordinances
- Rock County website: https://www.co.rock.wi.us/
- Rock County laws: search for the Rock County, Wisconsin code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 15 | 100% |
| State house district | Share of residents |
|---|---|
| Assembly District 45 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Beloit: the share of that ZIP's residents living in it.
- 53511 (75%)
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Your agent can get Beloit'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:5506500")
Beloit 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.