Rock Grove, Illinois ZIP Code - United States

The location Rock Grove, IL has an unique ZIP Codes assigned (61070). Although this location name (Rock Grove, IL) is set as NOT ACCEPTABLE (meaning it is an inadequate city name). So looking for the ZIP Code 61070 we have found out the following locations (for your mailing or form filling you should use an ACCEPTABLE or PRIMARY location name).

	City Name	ZIP Code	ZIP Type	Estimated Population
Rock City, IL	PRIMARY	61070	STANDARD	965

Postal Zone of Rock Grove, IL - USA

Rock Grove, Illinois ZIP Code - United States — ZIP Code Tabulation Areas (ZCTAs) for Rock Grove, IL ZIP Code. A ZCTA is a generalized area representation of the american ZIP Code service area.

Rock Grove, IL belongs to which county?

Rock Grove, IL belongs to Stephenson county. Check the list of Stephenson county ZIP Code.

ZIP Code Illinois

Check the list of Illinois ZIP Code.

ZIP Code United States

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Status Definitions

PRIMARY: means an the primary city name. Official city name, although the city name might also have another acceptable name.
ACCEPTABLE: means an adequate city name. City names that are abbreviated will frequently be listed as unacceptable because abbreviations are not an acceptable city name format.
IMPROPER/NOT ACCEPTABLE: Means an inadequate city name has been entered or received based on information entered.
UNIQUE: Assigned to a company, government agency, or entity with sufficient mail volume, based on average daily volume of letter size mail received, availability of ZIP Code numbers in the postal area, and the US mail service cost-benefit analysis.