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Fleming Island, Florida facts for kids

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Fleming Island, Florida
Country United States
State Florida
County Clay
 • Total 23.12 sq mi (59.89 km2)
 • Land 15.84 sq mi (41.02 km2)
 • Water 7.29 sq mi (18.87 km2)
 • Total 29,142
 • Density 1,840.01/sq mi (710.42/km2)
Time zone UTC-5 (Eastern (EST))
 • Summer (DST) UTC-4 (EDT)
ZIP codes
FIPS code 12-22660

Fleming Island is an unincorporated community and census-designated place (CDP) in Clay County, Florida, United States. It is located 21 miles (34 km) southwest of downtown Jacksonville, on the western side of the St. Johns River, off US 17. As of the 2010 census the Fleming Island CDP had a population of 27,126. Fleming Island's ZIP code became 32003 in 2004, giving it a different code from Orange Park, the incorporated town to the north.


In 1942, when the area was undeveloped, the U.S. Navy constructed four asphalt runways on the site and established a Naval Outlying Field designated as NOLF Fleming Island, an auxiliary airfield to Naval Air Station Jacksonville. The Navy abandoned the auxiliary airfield in the 1960s, its runways too short to accommodate the jet aircraft then in operation at nearby NAS Jacksonville and NAS Cecil Field, and in the late 1990s the decaying runways were demolished to make way for current residential development.

Today, Fleming Island is primarily a bedroom community of nearby Jacksonville. Major developments include Eagle Harbor, Pace Island and Fleming Island Plantation. Fleming Island High School, which opened in 2003, is the only high school on the island.


The Fleming Island CDP is located in northeastern Clay County, sharing its northern border with the southern town limits of Orange Park. To the northwest is the CDP of Lakeside. To the northeast is a portion of the city of Jacksonville, and due east is Fruit Cove in St. Johns County.

According to the U.S. Census Bureau, the Fleming Island CDP has a total area of 23.1 square miles (59.9 km2), of which 15.8 square miles (41.0 km2) is land and 7.3 square miles (18.9 km2), or 31.56%, is water. Fleming Island is bordered by water or wetlands on all sides: the St. Johns River to the east, Doctors Lake to the north, Black Creek to the south and Swimming Pen Creek to the west. There are wetlands from Swimming Pen Creek to Black Creek that are not navigable. Some locals favor opening this to Black Creek but so far, the St. Johns Water Management District has not pursued the idea of doing this.


Historical population
Census Pop.
2020 29,142
U.S. Decennial Census

As of the census of 2010, there were 27,126 people, 9,821 households, and 7,770 families residing in the CDP. There were 10,440 housing units, 9,821 of which were occupied. The racial makeup of the town was 86.2% White, 5.2% African American, 0.3% Native American, 4.1% Asian, 0.1% Pacific Islander, 1.4% some other race, and 2.7% from two or more races. Hispanic or Latino of any race were 6.4% of the population.

There were 9,821 households, out of which 41.3% had children under the age of 18 living with them, 66.5% were headed by married couples living together, 9.2% had a female householder with no husband present, and 20.9% were non-families. 17.2% of all households were made up of individuals, and 6.3% were someone living alone who was 65 years of age or older. The average household size was 2.76 and the average family size was 3.12.

In the CDP, the population was spread out, with 27.3% under the age of 18, 7.7% from 18 to 24, 23.0% from 25 to 44, 30.8% from 45 to 64, and 11.3% who were 65 years of age or older. The median age was 40.4 years. For every 100 females, there were 96.1 males. For every 100 females age 18 and over, there were 92.4 males.

For the period 2010–12, the estimated median annual income for a household in the CDP was $86,598, and the median income for a family was $96,755. Male full-time workers had a median income of $71,494 versus $47,864 for females. The per capita income for the CDP was $32,102.


Fleming Island ranks among the wealthiest zip codes in the Jacksonville area, placing #2 after Ponte Vedra Beach in the March 2013 Jacksonville Business Journal article. Fleming Island has its own Carmike Cinema 12, Walmart, Target, Home Depot, Kohl's, Publix, Winn-Dixie, Michael's, PetSmart and many other types of businesses. The Clay County Public Library headquarters is on Fleming Island, as are the Clay County soccer fields.

There is an 8-foot-wide (2.4 m) sidewalk running the length of Fleming Island, providing about 7 miles (11 km) of walking, jogging and biking. Black Creek Park on the south end of the Fleming Island borders Black Creek and affords bikers and hikers nature trails. On the north end of Fleming Island, a park for children recently opened at Moccasin Slough on Westover Road just off Highway 17. Nature lovers can visit Moccasin Slough. The Pace family owned Moccasin Slough at one time and dug a canal almost all the way to Doctors Lake. Area residents can enjoy the benefits of their labor, as it is still navigable among the swampy portions by canoe or small boat.

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