Bement, IL has a population of 1,646 and is the 12,156th largest city in the United States. The population density is 2,036 per sq mi which is 816% higher than the Illinois average and 2147% higher than the national average. The median age in Bement is 43 which is approximately 16% higher than the Illinois average of 37. In Bement, 68% of the population over 15 years of age are married, 98% speak English and 0% speak Spanish. 82% of Bement residents were born in Illinois, 16% were born out of state, 0% were born outside of the United States and 2% were foreign born.