Herald is a census-designated place in Sacramento County, California. Herald sits at an elevation of 79 feet (24 m). It is located east of the City of Galt along State Route 104. The ZIP Code is 95638, and the community is inside area code 209. The 2010 United States census reported Herald's population was 1,184.
According to the United States Census Bureau, the CDP covers an area of 7.9 square miles (20.5 km²), 99.72% of it land and 0.28% of it water.
The 2010 United States Census reported that Herald had a population of 1,184. The population density was 149.9 people per square mile (57.9/km²). The racial makeup of Herald was 934 (78.9%) White, 20 (1.7%) African American, 13 (1.1%) Native American, 64 (5.4%) Asian, 7 (0.6%) Pacific Islander, 105 (8.9%) from other races, and 41 (3.5%) from two or more races. Hispanic or Latino of any race were 254 persons (21.5%).