Rohrersville is a census-designated place (CDP) in Washington County, Maryland, United States. The population was 175 at the 2010 census.
Rohrersville is located at 39°26.3′N 77°39.8′W / 39.4383°N 77.6633°W / 39.4383; -77.6633 (39.4379, −77.6635).
According to the United States Census Bureau, the CDP has a total area of 0.8 square miles (2.1 km), all land.
As of the census of 2000, there were 170 people, 61 households, and 48 families residing in the CDP. The population density was 204.0 people per square mile (79.1/km²). There were 64 housing units at an average density of 76.8/sq mi (29.8/km²). The racial makeup of the CDP was 100.00% White.
There were 61 households out of which 29.5% had children under the age of 18 living with them, 67.2% were married couples living together, 8.2% had a female householder with no husband present, and 19.7% were non-families. 11.5% of all households were made up of individuals and 8.2% had someone living alone who was 65 years of age or older. The average household size was 2.79 and the average family size was 3.04.
In the CDP, the population was spread out with 24.1% under the age of 18, 8.2% from 18 to 24, 28.2% from 25 to 44, 26.5% from 45 to 64, and 12.9% who were 65 years of age or older. The median age was 39 years. For every 100 females, there were 100.0 males. For every 100 females age 18 and over, there were 101.6 males.
The median income for a household in the CDP was $61,607, and the median income for a family was $61,250. Males had a median income of $46,354 versus $26,250 for females. The per capita income for the CDP was $13,323. None of the families and 8.8% of the population were living below the poverty line, including no under eighteens and 54.5% of those over 64.