Washington was formed from a portion of Union in 1811.

Netcong was formed from portions of the township on October 23, 1894.

In 1800, Haldimand was formed from a portion of Norfolk.

The county was formed from portions of Chippewa and Lincoln counties.

Florham Park was formed from portions of the township on March 9, 1899.

It was formed in 1908 from portions of Lexington and Orangeburg counties.

Green County was formed in 1792 from portions of Lincoln and Nelson counties.

It was formed from portions of Streetsboro and Franklin townships in 1964.

The town was formed in 1807 from a portion of the Town of Hamilton.

Washington Township was formed from a portion of Crete.