Zip Area Code

El Dorado, Arkansas

El Dorado, Arkansas, in Union County, has ZIP codes 71730 and 71731 and area code 870, with 327 as an overlay.

ZIP codes
71730, 71731
Area codes
870, 327
Time zone
Central Time
Coordinates
33.2074, -92.6646

ZIP codes in El Dorado

ZIP codePost officeCountyArea codes
71730El DoradoUnion County870, 327
71731*El DoradoUnion County870, 327

* No mapped delivery area: P.O. boxes or a single organization. Area codes are those of the nearest ZIP code area.

Area codes for El Dorado

  • Area code 870

    In service since April 14, 1997. Shares its area with 327. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 327

    In service since February 20, 2024. Shares its area with 870. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

El Dorado is in the Central Time zone.

Towns near El Dorado