Wikipedia says:
Columbus is a city in Platte County, Nebraska, United States, 90 miles (148 km) west by north of Omaha on the Loup River, a short distance above the confluence with the Platte. In 1900, 3,522 people lived in Columbus, Nebraska; in 1910, 5,014; and in 1940, 7,632. The population was 20,971 at the 2000 census and 21,414 by the 2006 estimate. It is the county seat of Platte County (...) more....
by 
