THC Science

Correos de El Salvador is the national post office of El Salvador.^[1]^[2]

References[edit]

Mail and postal systems
History	Timeline of postal history African countries Asian countries European countries Oceanian countries Pan-American countries Postal censorship	Envelope for mailing
Components	Advertising mail Bulk mail Envelope Indicia Information-Based Indicia Letter box Mail Mail bag Meter stamp Parcel Parcel locker Post box / Mailbox Relay box Post office Post office box Postage meter Postage stamp Postal code Postal marking
Delivery	Airmail Express Package delivery Registered Surface Surface Air Lifted (SAL)
Staff	Mail carrier Postal worker Postmaster Postmaster General
Processing	Intelligent Mail barcode Mail Isolation Control and Tracking Multiline Optical Character Reader Mail cover Mail sorting Package forwarding PLANET POSTNET
Institutions and systems	Postal entities Postal museums Postal services Postal systems by country Trade unions
Related	Courier Philately most expensive philatelic items Stamp collecting notable stamps catalogues Philatelic terminology
List of entities that have issued postage stamps	A–E F–L M–Z
Philately portal Category Commons

Post of the Americas
United States and Canada Latin America and the Caribbean
Regions	Latin America Hispanic North America Northern Caribbean Central America South America
Sovereign states	Antigua and Barbuda Argentina Bahamas Barbados Belize Bolivia Brazil Canada Chile Colombia Costa Rica Cuba Dominica Dominican Republic Ecuador El Salvador Grenada Guatemala Guyana Haiti Honduras Jamaica Mexico Nicaragua Panama Paraguay Peru Saint Kitts and Nevis Saint Lucia Saint Vincent and the Grenadines Suriname Trinidad and Tobago United States Uruguay Venezuela
Dependencies and other territories	Anguilla Aruba Bermuda Bonaire British Virgin Islands Cayman Islands Curaçao Falkland Islands French Guiana Greenland Guadeloupe Martinique Montserrat Puerto Rico Saba Saint Barthélemy Saint Martin Saint Pierre and Miquelon Sint Eustatius Sint Maarten South Georgia and the South Sandwich Islands Turks and Caicos Islands U.S. Virgin Islands