Winfield is a town in Winfield Township, Lake County, Indiana, United States. The population was 2,298 at the 2000 census, 4,383 in 2010 and 5,073 in 2013. The town was incorporated in 1993 in order to keep the residents from being annexed by Merrillville. Prior to that time it had been part of Winfield Township as an unincorporated town. Winfield is named for General Winfield Scott. The town is served by the Crown Point post office, addresses in Winfield share the Crown Point ZIP code.
In 2014 Winfield formed a Marshal department for public safety and supplements law enforcement duties with services provided by the Lake County Sheriff's Department....LESS