There were 19,444 households out of which 25.7% had children under the age of 18 living with them, 46.6% were married couples living together, 11.6% had a female householder with no husband present, and 37.5% were non-families. 30.2% of all households were made up of individuals and 14.1% had someone living alone who was 65 years of age or older. The average household size was 2.31 and the average family size was 2.84.
In the city the population was spread out with 21.4% under the age of 18, 6.7% from 18 to 24, 29.2% from 25 to 44, 22.2% from 45 to 64, and 20.6% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 91.2 males. For every 100 females age 18 and over, there were 87.9 males.
The median income for a household in the city was $35,048, and the median income for a family was $41,072. Males had a median income of $28,208 versus $24,505 for females. The per capita income for the city was $18,701. About 6.5% of families and 9.3% of the population were below the poverty line, including 12.1% of those under age 18 and 8.7% of those age 65 or over.
Pinellas Park is known throughout the Tampa Bay area for a series of community events held annually every year in a city-owned bandshell located behind City hall. The most popular of these events is "Country in the Park," a festival held every year generally on the 3rd Saturday of March, but always after the Florida State Fair and Florida Strawberry Festival. The festival's popularity stems from its wide array of events, such as arts and crafts shows, NASCAR displays, popular amusement park rides, and multi-artist day-long concert, and the fact that parking, entry to the festival, and attendance of the concert are all free of charge. As of 2008, the Country in the Park festival has been organized for 18 years straight. Another popular celebration among the locals is Pride in the Park. This celebration occurs during the week leading up to Country in the Park. Usually the night before Country In The Park, the Firefighters chili cookoff takes place at the bandshell. Pinellas Park is also home to a memorial to the Korean War, located in Freedom Lake Park.