Geography of Guernsey
| Location: | Western Europe, islands in the English Channel, northwest of France |
| Geographic coordinates: | 49 28 N, 2 35 W |
| Map references: | Europe |
| Area: | total: 78 sq km land: 78 sq km water: 0 sq km note: includes Alderney, Guernsey, Herm, Sark, and some other smaller islands |
| Area - comparative: | about one-half the size of Washington, DC |
| Land boundaries: | 0 km |
| Coastline: | 50 km |
| Maritime claims: | territorial sea: 3 nm exclusive fishing zone: 12 nm |
| Climate: | temperate with mild winters and cool summers; about 50% of days are overcast |
| Terrain: | mostly level with low hills in southwest |
| Elevation extremes: | lowest point: Atlantic Ocean 0 m highest point: unnamed location on Sark 114 m |
| Natural resources: | cropland |
| Land use: | arable land: NA% permanent crops: NA% other: NA% |
| Irrigated land: | NA |
| Natural hazards: | NA |
| Environment - current issues: | NA |
| Geography - note: | large, deepwater harbor at Saint Peter Port |