Cornish Flat New Hampshire is covered by a total of 1 ZIP Codes. There are also 1 ZIP Codes that overlap Cornish Flat but have a different postal city name. The ZIP Codes in Cornish Flat range from 03745 to 03746. Data Updated October 2, 2024
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| ZIP Code | ZIP Code City/Town | ZIP Code Type | |||
|---|---|---|---|---|---|
| Cornish | Standard | |||
| Cornish Flat | PO Box |