The Meridian 89° West of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Gulf of Mexico, Central America, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole.
The 89th meridian west forms a great circle with the 91st meridian east.
Starting at the North Pole and heading south to the South Pole, the 89th meridian west passes through:
| Co-ordinates | Country, territory or sea | Notes |
|---|---|---|
| Arctic Ocean | ||
| Canada | Nunavut - Ellesmere Island | |
| Nansen Sound | ||
| Canada | Nunavut - Axel Heiberg Island | |
| Norwegian Bay | ||
| Canada | Nunavut - Ellesmere Island | |
| Jones Sound | ||
| Canada | Nunavut - Devon Island | |
| Lancaster Sound | ||
| Prince Regent Inlet | ||
| Canada | Nunavut - Baffin Island | |
| Gulf of Boothia | ||
| Canada | Nunavut - mainland | |
| Hudson Bay | ||
| Canada | Manitoba - for about 1km Ontario |
|
| Lake Superior | ||
| United States | Michigan - Isle Royale | |
| Lake Superior | ||
| United States | Michigan Wisconsin Illinois Kentucky Tennessee Mississippi |
|
| Gulf of Mexico | Passing through the Chandeleur Islands, Louisiana, United States | |
| United States | Louisiana - Mississippi River Delta | |
| Gulf of Mexico | ||
| Mexico | ||
| Belize | ||
| Guatemala | ||
| Honduras | ||
| El Salvador | ||
| Pacific Ocean | Passing just east of San Cristóbal Island, Ecuador | |
| Southern Ocean | ||
| Antarctica | Territory claimed by Chile (Antártica Chilena Province) |
|
|||||