Denison is 75 miles north of Dallas and 5 miles south of the Texas-Oklahoma state line along U.S. Highway 75. Denison’s history is rich in flavor and personality, and its residents are dedicated to preserving the town’s unique history. The 30-block area of downtown is listed on the National Register of Historic Places . Many homes in Denison have preserved their original character and design. President Dwight Eisenhower was born and raised in Denison.