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).
Harvey, IL Profile: Facts, Map & Data. Harvey, Illinois - Basic Facts. The City of Harvey had a population of 24,341 as of July 1, 2016. Harvey ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.