While other areas of the United States doubled in size on a census by census basis, Massachusetts had grown by 11.6% in 1800 to a figure of 422,845. Population increases of a similar nature (in the order of 20% per decade on average) were experienced throughout the 19th century.
Population of Middletown, OH. Last official estimated population of Middletown city (Butler County**, Ohio state) was 48,791 (year 2014)[1]. This was 0.015% of total US population and 0.42% of total Ohio state population. Area of Middletown city is 26.4 miÂ² (=68.4 kmÂ²)[6], in this year population density was 1,846.81 p/miÂ².
Middletown, Maryland. Middletown is a suburban town in Frederick County, Maryland, United States. The population was 4,138 at the 2010 census. Located in the Middletown Valley that stretches between the Catoctin Mountains on the east and South Mountain on the west, the town reportedly gained its name from its location midway between those ranges. 1 History.