Wimauma was founded by Captain C.H. Davis in 1902. That year, Davis helped build the Seaboard Air Line Railroad connecting Turkey Creek and Bradenton. Davis decided to found a town at the half-way point, opening a post office there in on October 24, 1902. Davis named the town by taking the first letters of the names of his three daughters, Willie, Maude, and Mary. The town had the railroad tracks as the western boundary and was centered around Lake Tiger, now called Lake Wimauma. The town was officially incorporated in 1925 as the county's fourth municipality, but the city government ceased to function some time in the 1930s. In 1993 this fact was rediscovered, but it was concluded that the incorporation was no longer valid after about 60 years without a city government.
As of the censusGR2 of 2000, there were 4,246 people, 951 households, and 820 families residing in the community. The population density was 194.7/km² (504.1/mi²). There were 1,097 housing units at an average density of 50.3/km² (130.2/mi²).
There were 951 households out of which 53.5% had children under the age of 18 living with them, 59.2% were married couples living together, 17.8% had a female householder with no husband present, and 13.7% were non-families. 8.8% of all households were made up of individuals and 4.1% had someone living alone who was 65 years of age or older. The average household size was 4.31 and the average family size was 4.36.
In the community the population was spread out with 38.6% under the age of 18, 14.2% from 18 to 24, 27.9% from 25 to 44, 13.6% from 45 to 64, and 5.7% who were 65 years of age or older. The median age was 24 years. For every 100 females there were 116.3 males. For every 100 females age 18 and over, there were 124.5 males.
The median income for a household in the community was $35,114, and the median income for a family was $34,671. Males had a median income of $20,484 versus $19,604 for females. The per capita income for the community was $8,597. About 26.5% of families and 31.7% of the population were below the poverty line, including 44.5% of those under age 18 and 11.1% of those age 65 or over.