| Official Name: | Londonderry, Vermont |
| Settlement Type: | Town |
| Image Alt: | Aerial view of Londonderry |
| Mapsize: | 200px |
| Pushpin Map: | USA |
| Pushpin Map Caption: | Location in the United States |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Vermont |
| Subdivision Type2: | County |
| Subdivision Name2: | Windham |
| Unit Pref: | Imperial |
| Area Total Km2: | 92.9 |
| Area Land Km2: | 92.4 |
| Area Water Km2: | 0.5 |
| Area Total Sq Mi: | 35.9 |
| Area Land Sq Mi: | 35.7 |
| Area Water Sq Mi: | 0.2 |
| Population As Of: | 2020 |
| Population Total: | 1919 |
| Population Density Km2: | 20.8 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation M: | 584 |
| Elevation Ft: | 1916 |
| Coordinates: | 43.2058°N -72.8131°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 05148 |
| Area Code: | 802 |
| Blank Name: | FIPS code |
| Blank Info: | 50-40225[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1462136[2] |
| Website: | www.londonderryvt.org |
Londonderry is a town in Windham County, Vermont, United States. It is bounded on the north by Landgrove and Weston, on the east by Windham, on the south by Jamaica and on the west by Winhall and Landgrove. The population was 1,919 in the 2020 census.[3] The town contains the villages of Londonderry and South Londonderry.
Londonderry was first chartered in 1770 to a Col. James Rogers and was known as Kent, which included what is now Windham. The town was again chartered by act of the new Vermont Legislature on April 20, 1780. In this charter, the township was named Londonderry after Londonderry in New Hampshire,[4] which in turn was named after Londonderry in Ireland.
According to the United States Census Bureau, the town has a total area of 35.9 square miles (92.9 km2), of which 35.7 square miles (92.4 km2) is land and 0.2 square mile (0.5 km2) (0.59%) is water. The West River flows through the town.[5]
This climatic region is typified by large seasonal temperature differences, with warm to hot (and often humid) summers and cold (sometimes severely cold) winters. According to the Köppen Climate Classification system, Londonderry has a humid continental climate, abbreviated "Dfb" on climate maps.[6]
As of the census of 2000, there were 1,709 people, 730 households, and 470 families residing in the town. The population density was 47.9 people per square mile (18.5/km2). There were 1,317 housing units at an average density of 36.9 per square mile (14.3/km2). The racial makeup of the town was 98.60% White, 0.12% Black or African American, 0.23% American Indian or Alaska Native, 0.47% Asian, and 0.59% from two or more races. Hispanic or Latino of any race were 0.47% of the population.
There were 730 households, out of which 27.7% had children under the age of 18 living with them, 53.3% were married couples living together, 8.1% had a female householder with no husband present, and 35.5% were non-families. Households made up of individuals comprised 25.9% of the population, with 10.7% having someone 65 years of age or older living alone. The average household size was 2.34 and the average family size was 2.84.
In the town, the population's age was spread out, with 21.9% under the age of 18, 6.0% from 18 to 24, 28.7% from 25 to 44, 26.9% from 45 to 64, and 16.6% who were 65 years of age or older. The median age was 42 years. For every 100 females, there were 102.2 males. For every 100 females age 18 and over, there were 103.2 males.
The median income for a household in the town was $42,669, and the median income for a family was $48,000. Males had a median income of $29,871 versus $22,574 for females. The per capita income for the town was $24,220. About 2.7% of families and 6.3% of the population were below the poverty line, including 9.2% of those under age 18 and 6.7% of those age 65 or over.