Jacksonville City Hall is located at 117 W. Duval Street. Situated in the heart of downtown, on the north block of the St. Johns River, this building was completed in 1965.

The building's exterior follows the modernist architectural style of the 1960s, characterized by its geometric and restrained design. It stands 11 stories tall, making it noticeable in downtown, but it is neither flashy nor overwhelming. The white concrete facade and large window structure give it a neat impression.

In 1968, when Jacksonville and Duval County underwent a historic administrative consolidation, this building became not just a city hall but also a center for the integrated administration of the city and county. Its official name is Jacksonville City Hall, and it houses the mayor's office, city council meeting rooms, and various administrative departments. It is also where citizens come for various permits, tax payments, and administrative services.

The head of Jacksonville's administration is the Mayor. In the 2023 election, Donna Deegan was elected as Jacksonville's first female mayor.

She is a member of the Democratic Party and has a background in broadcasting. The Jacksonville City Council consists of 19 members, with 14 representing districts and 5 representing the city at large. They are elected for four-year terms and are responsible for budget preparation, ordinance enactment, and administrative oversight. City council meetings are regularly held at city hall and are open for the public to attend.

The area surrounding city hall is the administrative and business center of downtown Jacksonville. Nearby are major public institutions such as the Duval County Courthouse, federal court, and the headquarters of Jacksonville Electric Authority (JEA). Walking from city hall towards the St. Johns River leads to the Jacksonville Riverwalk, and across the river is the Southbank district, which features restaurants and entertainment spaces. Between city hall and the river is Hemming Park, which serves as a small plaza for citizens.

When handling administrative tasks at city hall, be mindful of parking. Due to the nature of downtown, there are not many free parking spaces, so it is convenient to use nearby paid parking lots or public transportation (JTA buses).

Most administrative tasks, such as renewing a driver's license, handling real estate documents, and business registration, can be processed at city hall or nearby administrative offices, with many services also available online. You can reduce the number of visits by booking or processing services through the official COJ (City of Jacksonville) website.