ZIP codes in Frederick County
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- 22602 WinchesterFrederick County
- 22603 WinchesterFrederick County
- 22624 Clear BrookFrederick County
- 22625 Cross JunctionFrederick County
- 22637 Cross JunctionFrederick County
- 22645 MiddletownFrederick County
- 22654 Star TanneryFrederick County
- 22655 Stephens CityFrederick County
- 22656 StephensonFrederick County
- 22663 BoyceFrederick County