Boundary Atlas

ZIP code 72166: Chester, AR

ZIP code 72166 is in Arkansas County, Arkansas, outside any city or Census-designated place. It is in Arkansas's 1st congressional district. Its state senate district is State Senate District 8; its state house district is State House District 62.

229residents (2020 Census)
105.1 sq miland area
0cities and towns
1congressional district
2voting precincts

See it on the mapAll of Arkansas

City and county

Outside any city or Census-designated place.


CountyShare of ZIP residents
Arkansas County100%

Town or county subdivisionShare of ZIP residents
Chester township100%
Arkansas townshipland only
Prairie townshipland only

Congressional district

Congressional districtShare of ZIP residents
Arkansas's 1st congressional district (AR-01)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 8100%

State house districtShare of ZIP residents
State House District 62100%

Voting precincts

2 voting precincts overlap ZIP 72166. 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:72166")

ZIP 72166 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.