The Lima Rosenwald School, as it appeared in October, 2012. It is the most prominent structure in the All Black Town of Lima, Oklahoma – Tim Dowd, CC BY-SA 3.0 – Wikimedia Commons Lima is located in Seminole County. About 68 people live here (as of 2020). Between 2010 and 2020, the population grew from 53 to 68. The region is at 267 meters above sea level. The area covers about 1.2 square kilometers. There are about 22 streets in Lima. The dialing code is 405. Lima is town in Oklahoma, United States.