> Postal services Maryland > Postal services Calvert County > Postal services Prince Frederick
Usps
The Usps address is 35 Duke St Prince Frederick MD 20678-9998 and the business entry is attached to the branche Postal services.
Economic data
Some SIC economic data of this entry in Prince Frederick with important and interesting facts.
| Classification: | SIC (Standard Industrial Classification) |
| Classification code: | 4311 |
| Economic description: | U.S. Postal Service |
| Company activity: | United States Postal Service (Government) |
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Nearby similar companies
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