Welcome to Demi - John Island ...

Demi - John Island is located on the Gulf Coast.

Demi - John Island is located in Brazoria County<1>.

A typical abbreviation for Demi - John Island: Demi John Is. (in Canada, 'Isld.' is the more common abbreviation.)

Time Zone: Demi - John Island lies in the Central Time Zone (CST/CDT) and observes daylight saving time

Footnotes ...

<1>	If you're interested in how the shape of Texas' counties, including Brazoria, have changed over time, we recommend the Atlas of Historical County Boundaries.