Zip Area Code

Naperville, Illinois

Naperville, Illinois, in DuPage County, has ZIP codes 60540, 60563, 60564, 60565, 60566 and 60567 and area codes 630 (overlay 331) and 815 (overlay 779).

ZIP codes
60540, 60563, 60564, 60565 …
Area codes
630, 331, 815, 779
Time zone
Central Time
Coordinates
41.7697, -88.1449

ZIP codes in Naperville

ZIP codePost officeCountyArea codes
60540NapervilleDuPage County630, 331
60563NapervilleDuPage County630, 331
60564NapervilleWill County815, 779
60565NapervilleDuPage County630, 331
60566*NapervilleDuPage County630, 331
60567*NapervilleDuPage County630, 331

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

Area codes for Naperville

  • Area code 630

    In service since August 3, 1996. Shares its area with 331. Local calls are dialed with 1 plus ten digits.

  • Area code 331

    In service since October 7, 2007. Shares its area with 630. Local calls are dialed with 1 plus ten digits.

  • Area code 815

    In service since 1947. Shares its area with 779. Local calls are dialed with 1 plus ten digits.

  • Area code 779

    In service since March 17, 2007. Shares its area with 815. Local calls are dialed with 1 plus 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

Naperville is in the Central Time zone.

Towns near Naperville