Latitudes and Longitudes
| Seaport Name | Seaport Code | Country | Latitude | Longitude |
|---|---|---|---|---|
| Port Aransas | USPAS | United States of America | 27°50'N | 97°03'W |
| Port Jefferson | USPTJ | United States of America | 40°58'N | 73°05'W |
| Unalaska | USDUT | United States of America | 53°55'N | 166°35'W |
| Wiscasset | USWSC | United States of America | 44°00'N | 69°40'W |
| Port Everglades | USPEF | United States of America | 26°05'N | 80°05'W |
| Pasadena | USPSD | United States of America | 29°43'N | 95°13'W |
| Northville | USRID | United States of America | 40°59'N | 72°39'W |
| St. Thomas | VISTT | United States of America | 18°20'N | 64°56'W |
| Tyonek | USTYN | United States of America | 61°04'N | 151°09'W |
| South Brewer | USBGR | United States of America | 44°47'N | 68°47'W |
| Port Canaveral | USPCA | United States of America | 28°25'N | 80°35'W |
| Orange | USORG | United States of America | 30°06'N | 93°44'W |
| Northport | USNOP | United States of America | 40°56'N | 73°22'W |
| St Croix | VIHOC | United States of America | 17°42'N | 64°45'W |
| Skagway | USSKA | United States of America | 59°27'N | 135°18'W |
| Searsport | USSRP | United States of America | 44°28'N | 68°56'W |
| Pensacola | USPNS | United States of America | 30°25'N | 87°14'W |
| Norsworthy | USNSW | United States of America | 29°45'N | 95°12'W |
| Newburgh | USNBG | United States of America | 41°30'N | 74°05'W |
| Limetree Bay | VIHOC | United States of America | 17°42'N | 64°45'W |