Breastmilk is quite different when the baby is 6 days old, 6 months old, and 18 months old. These changes happen gradually over time. Formulas come in a few different stages to try to address childrenâs changing nutritional needs as they grow.
The 2016 Antioch, Illinois, population is 14,329. There are 1,779 people per square mile (population density).
Graph: Population by Age and Race - Antioch, Illinois. Graph: Population by Age and Race, 2000 Census - Antioch, Illinois. Graph: Change in Population between 2000 and 2010, by Age and Race - Antioch, Illinois. Graph: Population by Age and Hispanic or Latino Origin, 2010 Census - Antioch, Illinois.