Frederick, Maryland ZIP Codes
ZIP Code | Type | City | County | County Code |
---|---|---|---|---|
21701 | Standard | Frederick | Frederick | 24021 |
21702 | Standard | Frederick | Frederick | 24021 |
21703 | Standard | Frederick | Frederick | 24021 |
21704 | Standard | Frederick | Frederick | 24021 |
21705 | POBox | Frederick | Frederick | 24021 |
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