On March 28, 1838, local landowner James Stewart platted a community in northwestern Harrison Township and named it “Union.” When William Hollaman, another landowner, attempted to purchase lots in the settlement, a dispute erupted between the two men; seven months later, Hollaman attempted to avenge himself by platting another community only 1 mile (1.6 km) to the northeast of Union, to which a third landowner, Valentine Harland, quickly made additions. The new community was given the name of “Hollansburg” as a portmanteau of the owners’ names —Hollaman and Harland. Within a year, a countryside post office named “Republican” was moved to Hollansburg, and the village quickly began to outgrow Union; the two communities ultimately merged. The first church in the village, a Church of Christ, was founded in 1840, while the first school building was erected in 1848.
According to the United States Census Bureau, the village has a total area of 0.12 square miles (0.31 km2), all of it land.
As of the census of 2010, there were 227 people, 98 households, and 66 families residing in the village. The population density was 1,891.7 inhabitants per square mile (730.4 /km2). There were 117 housing units at an average density of 975.0 per square mile (376.4 /km2). The racial makeup of the village was 93.8% White, 0.4%African American, 0.4% Pacific Islander, 1.8% from other races, and 3.5% from two or more races. Hispanic or Latino of any race were 1.3% of the population.
There were 98 households of which 31.6% had children under the age of 18 living with them, 51.0% were married couples living together, 9.2% had a female householder with no husband present, 7.1% had a male householder with no wife present, and 32.7% were non-families. 28.6% of all households were made up of individuals and 14.3% had someone living alone who was 65 years of age or older. The average household size was 2.32 and the average family size was 2.82.
The median age in the village was 40.3 years. 26.4% of residents were under the age of 18; 4.3% were between the ages of 18 and 24; 24.7% were from 25 to 44; 28.2% were from 45 to 64; and 16.3% were 65 years of age or older. The gender makeup of the village was 53.7% male and 46.3% female.