But decreasing oil production and lower prices, the coming of the Great Depression, and other factors caused the population to shrink to 17,097 by the 1930 census. The population then remained relatively stable for a time, increasing slightly to 18,317 by the 1950 census. In the postwar period, there was an urbanization shift of population toward larger cities and their suburbs because of job opportunities, and the city's population declined again. The population at the 2020 census was 11,332, a loss of about 8% percent from the 2010 census figure of 12,321.
But decreasing oil production and lower prices, the coming of the Great Depression, and other factors caused the population to shrink to 17,097 by the 1930 census The population then remained relatively stable for a time, increasing slightly to 18,317 by the 1950 census. In the postwar period, there was an urbanization shift of population toward larger cities and their suburbs because of job opportunities, and the city's population declined again. The population at the 2020 census was 11,332, a loss of about 8% percent from the 2010 census figure of 12,321.