Onalaska, Wisconsin
Onalaska is a city in La Crosse County, Wisconsin, with 18,823 residents in 2020. It is in Wisconsin's 3rd congressional district. Its state senate district is State Senate District 32; its state house district is Assembly District 94.
County
| County | Share of residents |
|---|---|
| La Crosse County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Wisconsin's 3rd congressional district (WI-03) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Kim Smith | citywide | |
| U.S. Representative (WI-03) | Derrick Van Orden (R) | 202-225-5506 | 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 32) | Brad Pfaff (Democratic) | 100% | |
| Assembly Member (Assembly District 94) | Steve Doyle (Democratic) | 100% |
From Wikidata (community-maintained); confirm on the city's website.
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); Mayors: Wikidata (CC0).
Local government
- Onalaska website: http://www.cityofonalaska.com/
- Onalaska laws: search for the Onalaska, Wisconsin code of ordinances
- La Crosse County website: http://www.co.la-crosse.wi.us
- La Crosse County laws: search for the La Crosse County, Wisconsin code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 32 | 100% |
| State house district | Share of residents |
|---|---|
| Assembly District 94 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Onalaska: the share of that ZIP's residents living in it.
- 54650 (77%)
Get this in your AI agent
Your agent can get Onalaska'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:5559925")
Onalaska 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.