US ZIP Code Map
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USPS city

Knoxville, MD ZIP codes

1 ZIP code that list Knoxville as a USPS primary or acceptable city. Not a Census place.

Population of associated ZIP codes

4,238

Sum of ZCTA populations for ZIP codes intersecting Knoxville. Not a Census place total. Methodology

Combined population of ZIP/ZCTAs that list this USPS city as a primary or acceptable name. This is a labeled ZIP-sum, never a Census place ACS population. Methodology

ZIP codes associated with Knoxville

ZIPCityCountyPopulationIncome
21758KnoxvilleFrederick County4,238$110,694