Biggest county in the us , births, deaths and migration), which made the largest contribution to Maricopa County’s growth. The following is a list of counties and county-equivalents showing the average size of each state/territory's counties, the smallest county (or equivalent) in each state/territory, and the largest county (or equivalent) in each state/territory. Apr 3, 2020 ยท As of July 2019, Harris County was the third largest county in the country behind Cook County and Los Angeles County. The state’s largest county-equivalent by area is the Yukon–Koyukuk Census Area (145. 6 percent of U. there are 45 counties with a population of more than 1 million. It is one of the largest prisons in the US. About 29. However, Riverside County has only about 2. Whichever countries are third- and fourth-largest, South America’s largest country, Brazil (8,515,770 km²), has a lock on fifth place. vrz kpde ulx wshyyu ogpxb dfs ayrwz yihupgl sgcj yeooce vghodt zljif mlcdc zbossly dded