Harrod is a village in Allen County, Ohio, United States. The population was 417 at the 2010 census. It is included in the Lima, Ohio Metropolitan Statistical Area.
A post office called Harrod has been in operation since 1884. The village was named for the local Harrod family.
Harrod is located at 40°42′30″N 83°55′13″W (40.708427, -83.920298).
According to the United States Census Bureau, the village has a total area of 0.24 square miles (0.62 km2), all land.
As of the census of 2010, there were 417 people, 143 households, and 111 families living in the village. The population density was 1,737.5 inhabitants per square mile (670.9/km2). There were 161 housing units at an average density of 670.8 per square mile (259.0/km2). The racial makeup of the village was 99.3% White and 0.7% from two or more races. Hispanic or Latino of any race were 1.7% of the population.
There were 143 households, of which 46.9% had children under the age of 18 living with them, 60.1% were married couples living together, 11.9% had a female householder with no husband present, 5.6% had a male householder with no wife present, and 22.4% were non-families.