Mokena () is a village in Will County, Illinois, United States. The population was 18,740 at the 2010 census. A special census conducted in 2019 found that the population had increased to 20,159.
Mokena is a name derived from a Native American language meaning "mud turtle".
Mokena is located at 41°32′4″N 87°52′37″W.
According to the 2010 census, Mokena has a total area of 8.893 square miles (23.03 km2), of which 8.89 square miles (23.02 km2) (or 99.97%) is land and 0.003 square miles (0.01 km2) (or 0.03%) is water.
Mokena is served by Lincoln-Way Community High School District 210; students attend Lincoln-Way Central High School. Elementary school services are provided by one of four school districts: Mokena School District 159, New Lenox School District 122, Frankfort School District 157C, and Summit Hill School District 161. Schools within District 159 include MES (Mokena Elementary School), MIS (Mokena Intermediate School), and MJHS (Mokena Junior High School). Higher education is provided through Joliet Junior College, the nation's first public community college, and through Rasmussen College.
As of the census of 2010, there were 18,740 people, 6,358 households, and 5,120 families residing in the village. The population density was 2,432.4 people per square mile (938.4/km2). There were 4,848 housing units at an average density of 808.6 per square mile (312.0/km2). The racial makeup of the village was 94.5% White, 1.3% African American, 0.01% Native American, 2.0% Asian, 0.01% Pacific Islander, 0.9% from other races, and 0.63% from two or more races.