Ballico is a census-designated place in Merced County, California, United States. It is located 9 miles northwest of Atwater at an elevation of 151 feet. The population was 347 at the 2020 United States census, down from 406 in 2010. Ballico is located in the northern part of Merced County, just north of where the Santa Fe railroad crosses the Merced River. Delhi is to the west, Denair to the northwest, and Cressey is across the river to the southeast. The ZIP Code is 95303.