List of Romanian counties by population

List of Romanian counties by population presents the evolution of the resident population, by county, between 1948 and 2021. The table is ordered alphabetically, but can be sorted according to the results of each census. The National Institute of Statistics in Romania considered the following reference dates:
 * 25 January 1948
 * February 21, 1956
 * March 15, 1966
 * January 5, 1977
 * January 7, 1992
 * March 18, 2002
 * October 20, 2011
 * December 1, 2021

In each cell of the table, the number of the population and the demographic growth rate compared to the previous census are shown. The last column shows the population growth rate in the period 1948-2021.