ZIP code 89166: Las Vegas, NV
ZIP code 89166 is in Las Vegas (99% of residents), in Clark County, Nevada. It is in Nevada's 4th congressional district (100%) and Nevada's 3rd congressional district (0.1%). Its state senate districts are State Senate District 19 (61%) and State Senate District 18 (39%); its state house districts are Assembly District 36 (61%), Assembly District 13 (23%) and Assembly District 4 (17%).
See it on the mapAll of Nevada
City and county
| City or town | Share of ZIP residents |
|---|---|
| Las Vegas | 99% |
| County | Share of ZIP residents |
|---|---|
| Clark County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Las Vegas CCD | 99% |
| Clark CCD | 1.3% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Nevada's 4th congressional district (NV-04) | 100% |
| Nevada's 3rd congressional district (NV-03) | 0.1% |
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.
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 19 | 61% |
| State Senate District 18 | 39% |
| State house district | Share of ZIP residents |
|---|---|
| Assembly District 36 | 61% |
| Assembly District 13 | 23% |
| Assembly District 4 | 17% |
Voting precincts
13 voting precincts overlap ZIP 89166. 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:89166")
ZIP 89166 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.