Demi-John Island is a residential community located nine miles east of Lake Jackson and near the Brazoria National Wildlife Refuge in southeast Brazoria County. The development was probably so named because it is situated along the bend of Bastrop Bayou that is shaped like a jug or demijohn. Demi-John Island was shown on highway maps by the 1980s, but no population estimates were available until 2000, when the community reported eighteen residents.

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Laurie E. Jasinski | © TSHA

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Adapted from the official Handbook of Texas, a state encyclopedia developed by Texas State Historical Association (TSHA). It is an authoritative source of trusted historical records.

Belongs to

Demi-John is part of or belongs to the following places:

Currently Exists


Place type

Demi-John is classified as a Town

Associated Names

  • [- Island]


Latitude: 29.08754300
Longitude: -95.28666600

Has Post Office


Is Incorporated


Population Count, 2014