Zip Area Code

Delaware, Oklahoma

Delaware, Oklahoma, in Nowata County, has ZIP code 74027 and area code 918, with 539 as an overlay.

ZIP code
74027
Area codes
918, 539
Time zone
Central Time
Coordinates
36.7804, -95.6181

ZIP codes in Delaware

ZIP codePost officeCountyArea codes
74027DelawareNowata County918, 539

Area codes for Delaware

  • Area code 918

    In service since 1953. Shares its area with 539. Local calls are dialed with ten digits.

  • Area code 539

    In service since April 1, 2011. Shares its area with 918. Local calls are dialed with ten digits.

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

Delaware is in the Central Time zone.

Towns near Delaware