Melissa is located seven miles northeast of McKinney just off State Highway 75, in north-central Collin County. From this community came many individuals and families who have been prominent in the business and professional life of Collin County. Some of the first settlers came from the old Highland community, which is located two and one-half miles north of the present-day Melissa. It was here that C.H. Wysong settled as early as 1846. A Post Office was established and Isaac N Foster became the first Postmaster on September 9, 1853. The location of the Post Office was located at Foster Crossing about 3 miles north of Melissa.