The <a rel="mw:WikiLink" href="https://en.wikipedia.org/United_States_Postal_Service" title="United States Postal Service" id="mwCAU">United States Postal Service</a> operates post offices in Brooklyn. The <a rel="mw:WikiLink" href="https://en.wikipedia.org/Federal_Building_and_Post_Office_(Brooklyn)" title="Federal Building and Post Office (Brooklyn)" id="mwCAY">Brooklyn Main Post Office</a> is located at 271 <a rel="mw:WikiLink" href="https://en.wikipedia.org/Cadman_Plaza" title="Cadman Plaza" id="mwCAc">Cadman Plaza</a> East in <a rel="mw:WikiLink" href="https://en.wikipedia.org/Downtown_Brooklyn" title="Downtown Brooklyn" id="mwCAg">Downtown Brooklyn</a>.