Standard City, IL has a population of 159 and is the 25,434th largest city in the United States. The population density is 250 per sq mi which is 12% higher than the Illinois average and 176% higher than the national average. The median age in Standard City is 32 which is approximately 16% lower than the Illinois average of 37. In Standard City, 63% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 91% of Standard City residents were born in Illinois, 9% were born out of state, 0% were born outside of the United States and 0% were foreign born.