The city created Union Park in 1853, after residents convinced developers to sell 13 acres of their subdivision at a reduced price. Named in honor of the Federal Union, it was one of the city's most fashionable places. In 1885, the city transferred Union Park to the West Park Commission, which made the park its headquarters. Three years later, Jens Jensen, then working as gardener, planted an experimental wildflower garden called the American Garden, marking the beginnings of his venerable naturalistic style.

In the 1910s, African-Americans began moving into the neighborhood. While many other parks were inaccessible to black residents, Union Park became racially integrated. Between the 1920s and the 1950s, the park became well-known for cultural and social events, and a number of notable musicians performed there. Among them were the noted pioneer of gospel music Thomas A. Dorsey; trumpeter Sunny Cohn; and jazz pianist Ramsey Lewis.


Union Park features a walking path - 0.40 miles.