Boundary Atlas

ZIP code 71921: Caddo, AR

ZIP code 71921 is in Amity (19% of residents), Kirby (15%) and Alpine (3.8%), in Clark County (55%), Pike County (36%) and Hot Spring County (9.0%), Arkansas. 62% of its residents live outside city limits. It is in Arkansas's 4th congressional district. Its state senate districts are State Senate District 3 (64%) and State Senate District 5 (36%); its state house district is State House District 89.

3,532residents (2020 Census)
201.4 sq miland area
3cities and towns
1congressional district
7voting precincts

See it on the mapAll of Arkansas

City and county

City or townShare of ZIP residents
Amity19%
Kirby15%
Alpine3.8%

CountyShare of ZIP residents
Clark County55%
Pike County36%
Hot Spring County9.0%

Town or county subdivisionShare of ZIP residents
Caddo township55%
Antoine township16%
Clark township15%
Valley township9.0%
Self Creek township3.5%
Eagle township1.2%
Henderson townshipland only

Congressional district

Congressional districtShare of ZIP residents
Arkansas's 4th congressional district (AR-04)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (AR-04)Bruce Westerman (R)202-225-3772100%
U.S. SenatorJohn Boozman (R)202-224-4843 · contact formstatewide
U.S. SenatorTom Cotton (R)202-224-2353 · contact formstatewide
State Senator (State Senate District 3)Steve Crowell (R)64%
State Senator (State Senate District 5)Terry Rice (R)36%
State Representative (State House District 89)Justin Gonzales (R)870-245-6365100%

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 364%
State Senate District 536%

State house districtShare of ZIP residents
State House District 89100%

Voting precincts

7 voting precincts overlap ZIP 71921. 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:71921")

ZIP 71921 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.