Boundary Atlas

ZIP code 54615: Black River Falls, WI

ZIP code 54615 is in Black River Falls (32% of residents), Mission (2.7%), Sand Pillow (2.4%) and Millston (1.0%), in Jackson County (99%) and Monroe County (0.8%), Wisconsin. 62% of its residents live outside city limits. It is in Wisconsin's 3rd congressional district. Its state senate district is State Senate District 24; its state house district is Assembly District 70.

11,032residents (2020 Census)
316.1 sq miland area
4cities and towns
1congressional district
27voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Black River Falls32%
Mission2.7%
Sand Pillow2.4%
Millston1.0%

CountyShare of ZIP residents
Jackson County99%
Monroe County0.8%

Town or county subdivisionShare of ZIP residents
Black River Falls city32%
Brockway town28%
Adams town10%
Albion town10.0%
Manchester town7.5%
Irving town5.4%
Komensky town3.1%
Alma town1.6%
Millston town1.4%
New Lyme town0.6%
Melrose town0.3%
Little Falls town0.2%

Congressional district

Congressional districtShare of ZIP residents
Wisconsin's 3rd congressional district (WI-03)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (WI-03)Derrick Van Orden (R)202-225-5506100%
U.S. SenatorRon Johnson (R)202-224-5323 · contact formstatewide
U.S. SenatorTammy Baldwin (D)202-224-5653 · contact formstatewide
State Senator (State Senate District 24)Patrick Testin (R)100%
Assembly Member (Assembly District 70)Nancy VanderMeer (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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 24100%

State house districtShare of ZIP residents
Assembly District 70100%

Voting precincts

27 voting precincts overlap ZIP 54615. 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:54615")

ZIP 54615 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.