New Berlin is a city in Guadalupe County, Texas, United States. The population was 511 at the 2010 census. New Berlin is a German-Texan town settled by German emigrants in the 1800s as a farming community. New Berlin is named after Berlin, Germany and boasts many residents being descendants of the original German founders.

Guadalupe County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 172,706. The county seat is Seguin. The county was founded in 1846 and is named after Guadalupe River.