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).
Originally named Smithâs Landing, Antioch began as a settlement along the banks of. the San Joaquin River in 1850, and was incorporated in 1872. Antioch is located in. eastern Contra Costa County between the Cities of Brentwood and Oakley on the. east, and Pittsburg on the west. The City encompasses approximately 28 square miles, has 32 square miles within its Sphere of Influence, and 35 square miles within its Planning. Area.