Lena is a village located in Stephenson County, in the state of Illinois (IL), United States. Nestled in the East North Central division of the Midwest region, it covers an area of 2.1 square miles (6.0 km²) and sits at an elevation of 960 ft. With a population of approximately 2,887 residents, Lena offers a peaceful, rural atmosphere.
The town's population is composed of about 47.04% males and 52.96% females, and it has a population density of 349.07 people per square mile (520.88/km²). Lena lies at a latitude of 42.38 and a longitude of -89.83, operating in the UTC-6.
Locals reflect a blend of American ancestry, with roots primarily in United States (7%), followed by English (11.2%), German (45.7%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 61048.