
What is the area of Columbus and what is its uniqueness compared to other cities in the mid-western region of the United States
The total geographic area of Columbus is about 550.5 square km which is actually 212.6 sq miles. Out of this area, 2.3 square miles or 5.9 square km is covered by water and the remaining area is the actual land area. This information is provided by The U.S. Census bureau.
There is one unique feature about Columbus compared to the other mid-western cities in the United States - the area and the population of Columbus is increasing as more and more annexations and extensions happen. This fact makes it a city that has comparatively faster growth than other US cities.
http://en.wikipedia.org/wiki/Columbus,_Ohio#Geography
http://www.usacitiesonline.com/ohcountycolumbus.htm#geography

