Calvert is a city in Robertson County, Texas

Texas

Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...

, United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. The population was 1,192 at the 2010 census, a 16.4% decline from the 2000 census. It is part of the Bryan-College Station metropolitan area

Bryan-College Station metropolitan area

The Bryan–College Station Metropolitan Statistical Area is a metropolitan area in the Brazos Valley region of Texas that covers three counties: Brazos, Burleson, and Robertson...

.
According to the United States Census Bureau

United States Census Bureau

The United States Census Bureau is the government agency that is responsible for the United States Census. It also gathers other national demographic and economic data...

, Calvert has a total area of 3.9 square miles (10.1 km²), all of it land.
The city of Calvert, founded in 1868, was named in honor of Robert Calvert, a descendant of Lord Baltimore.