Grand Isle County is a county in Vermont, United States, made up of islands and a peninsula in Lake Champlain north of Burlington. It had a population of 7,293 at the 2020 census and covers 195 square miles (510 km2), of which 82 square miles (210 km2) are land and 113 square miles (290 km2) are water — the highest water share of any Vermont county — centred near 44\u00b048\u2032N 73\u00b017\u2032W.<\/p>\n
North Hero is the county seat, and its postal code is 05474. The county has five towns and no incorporated cities or villages — Vermont’s town-meeting system means each town is itself the unit of local government, so there is no separate layer of townships here. The county sits in the Eastern time zone and carries FIPS code 50013.<\/p>\n
All five of the county’s towns sit on islands or a peninsula in Lake Champlain, connected to the mainland and to each other by causeways and bridges (US 2). Several of the numbered addresses below are unincorporated hamlets and landings within a town rather than separate municipalities, marked “Unincorp.” in the table.<\/p>\n
| Place<\/th>\n | Type<\/th>\n | Pop.<\/th>\n | ZIP<\/th>\n<\/tr>\n |
|---|---|---|---|
| Alburgh<\/td>\n | Town<\/td>\n | 2,106<\/td>\n | 05440<\/td>\n<\/tr>\n |
| Grand Isle<\/td>\n | Town<\/td>\n | 2,086<\/td>\n | 05458<\/td>\n<\/tr>\n |
| South Hero<\/td>\n | Town<\/td>\n | 1,674<\/td>\n | 05486<\/td>\n<\/tr>\n |
| North Hero<\/td>\n | Town · seat<\/td>\n | 939<\/td>\n | 05474<\/td>\n<\/tr>\n |
| Isle La Motte<\/td>\n | Town<\/td>\n | 488<\/td>\n | 05463<\/td>\n<\/tr>\n |
| Alburg Center<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | 05440<\/td>\n<\/tr>\n |
| Alburg Springs<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | 05440<\/td>\n<\/tr>\n |
| East Alburg<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | 05440<\/td>\n<\/tr>\n |
| South Alburg<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | 05440<\/td>\n<\/tr>\n |
| Keeler Bay<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | 05486<\/td>\n<\/tr>\n |
| Adams Landing<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | 05458<\/td>\n<\/tr>\n |
| Gordon Landing<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | 05458<\/td>\n<\/tr>\n |
| Grand Isle Station<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | 05458<\/td>\n<\/tr>\n |
| Pearl<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | 05463<\/td>\n<\/tr>\n<\/table>\n<\/div>\n Alburgh, the county’s largest town, is a peninsula joined to Vermont’s mainland by a causeway across the lake’s Missisquoi Bay arm and to Isle La Motte by a bridge, rather than being a true island like the other four towns.<\/p>\n ZIP Codes<\/h2>\nEvery named place in the county falls under one of these five ZIP codes; the small landings and hamlets have no separate ZIP of their own.<\/p>\n Geography<\/h2>\nGrand Isle County occupies the Lake Champlain Islands, the largest archipelago on the lake, plus the Alburgh peninsula. Water — Lake Champlain itself, split here into the Inland Sea to the east and the broader lake to the west — covers more than half the county’s total area, more than any other Vermont county. The land is low and flat by Vermont standards, given over to dairy farming, orchards and lakeside development, with limestone bedrock close to the surface in places.<\/p>\n |