Rockville Minnesota Area Code

One area code covers Rockville: 320.

The code covering Rockville

Area codes covering Rockville, Minnesota, with what each one primarily serves.
Area code	Primarily serves	In service
320	Willmar	1996

Matched to Rockville through county-level data rather than a direct telephone record, so treat it as the region’s coverage rather than a per-address guarantee.

Scope the codes matched to Rockville. Source geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot) and LocalCallingGuide NPA list (2026-07 NPA list). Updated 16 July 2026. Overlay relationships come from the numbering-plan authority; the place match is computed.

Which part of town has which code

Rockville has a single code, so there is nothing to divide — every local line carries 320.

ZIP codes for the same city

Postal geography is organised separately from telephone geography, so Rockville’s 1 ZIP code do not map onto the codes above. They are listed in full, with the county each falls in, on the postal side of the site.

Rockville Minnesota ZIP codes →

Nearby places with different codes

These are the closest places to Rockville whose area codes are not the same set. If you are near one of them, a local number may carry a code that is not on the list above.

The nearest places to Rockville covered by a different set of area codes.
City	Distance	Their area codes
Clear Lake Minnesota area codes	15 mi	320, 763
Becker Minnesota area codes	22 mi	763
Maple Lake Minnesota area codes	22 mi	320, 763
Monticello Minnesota area codes	28 mi	612, 763
Big Lake Minnesota area codes	29 mi	612, 763
Buffalo Minnesota area codes	30 mi	612, 763
Waverly Minnesota area codes	33 mi	763
Montrose Minnesota area codes	34 mi	612, 763

Straight-line distance between place reference points, not driving distance.