It is the only Delhi Township statewide.
The name is pronounced "DEL-high", rather than "deli", which is how its namesake in India is pronounced.
In January 2014, Delhi was ranked as the 18th safest neighborhood in Ohio.
The Sedam Springhouse, which may date back to the 1790s, is one of the oldest buildings in the township. Now known as the Delhi Springhouse, the structure stands on land near the stone house Colonel Cornelius Ryker Sedam built in 1796. The house no longer exists, but the springhouse has been restored. The structure protected a natural spring, which supplied water as late as 1937. The springhouse was also used to provide storage for perishable foods.
Delhi Township is located within a climatic transition zone at the extreme northern limit of the humid subtropical climate. Being located within the northern periphery of the Upland South and also within the Bluegrass region of southern Ohio and Kentucky, the local climate is a basically a blend of the subtropics to the south and the humid continental climate to the north.
Delhi Township's average annual rainfall is 41 inches (1,000 mm), received over an average of 82 days, along with 14 inches (360 mm) of snow. Temperatures range from an average July high of 88 °F (31 °C) to an average January low of 15 °F (-5 °C).