Cambria, IL has a population of 1,337 and is the 13,372nd largest city in the United States. The population density is 981 per sq mi which is 341% higher than the Illinois average and 983% higher than the national average. The median age in Cambria is 33 which is approximately 11% lower than the Illinois average of 37. In Cambria, 42% of the population over 15 years of age are married, 97% speak English and 3% speak Spanish. 72% of Cambria residents were born in Illinois, 23% were born out of state, 3% were born outside of the United States and 2% were foreign born.