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 is located in southeast Pennsylvania. Middletown is part of Dauphin County. Middletown has 2.04 square miles of land area and 0.05 square miles of water area. As of 2010, the total Middletown population is 8,901, which has shrunk 3.69% since 2000. The population growth rate is much lower than the state average rate of 3.43% and is much lower than the national average rate of 9.71%.