The total area is 207.17 square kilometres ( 80 sq mi ) .
As of October 2013 , the city had an estimated population of 47,159 , and a population density of 228 persons per km2 .
The total area is 207.17 square kilometres ( 80 sq mi ) .
As of October 2013 , the city had an estimated population of 47,159 , and a population density of 228 persons per km2 .