In 1896, the City of Highlands was annexed, and thereafter was known as "North Denver." As the city grew larger and the name "North Denver" started to encompass a larger area the new neighborhood was renamed Jefferson Park, from the park located on West 23rd Avenue and Clay Street in the heart of the neighborhood. The park was part of an undeveloped portion of Crane's Addition to the Town of Highlands before annexation, and became part of the Highland Division of the City of Denver Parks, landscaped in the early 20th century and then named after the father of the Democratic Party, Thomas Jefferson.