Elkton is a home rule-class city in and the county seat of Todd County, Kentucky, United States. As of the 2020 census, Elkton had a population of 2,056.

The city was founded by Major John Gray and established by the state assembly in 1820. It is named for the presence of an elk herd that utilized a nearby waterway and natural salt lick. It was formally incorporated in 1843.

Elkton is located at 36°48′32″N 87°9′23″W / 36.80889°N 87.15639°W / 36.80889; -87.15639 (36.808926, -87.156377).

According to the United States Census Bureau, the city has a total area of 2.1 square miles (5.4 km²), all land.

As of the 2020 census, Elkton had a population of 2,056. The median age was 38.7 years. 24.8% of residents were under the age of 18 and 19.3% of residents were 65 years of age or older. For every 100 females there were 92.5 males, and for every 100 females age 18 and over there were 89.1 males age 18 and over.

0.0% of residents lived in urban areas, while 100.0% lived in rural areas.

There were 818 households in Elkton, of which 30.8% had children under the age of 18 living in them. Of all households, 35.7% were married-couple households, 18.7% were households with a male householder and no spouse or partner present, and 37.5% were households with a female householder and no spouse or partner present. About 33.9% of all households were made up of individuals and 17.3% had someone living alone who was 65 years of age or older.

There were 957 housing units, of which 14.5% were vacant. The homeowner vacancy rate was 0.6% and the rental vacancy rate was 10.8%.