Meridianville is an unincorporated community and census-designated place (CDP) in Madison County, Alabama, United States, and is included in the Huntsville–Decatur combined statistical area.

[3] The community of Meridianville was established in the early 1800s by a settler named Joseph Fenwick along the major north-south road from Nashville to Huntsville, now known as U.S. Route 231/431, deriving its name from being placed on the line of the base meridian.

This village site first attracted squatters and small farmers, however, when Fenwick recognized the possibilities of a town, he purchased land, and offered lots for sale in 1818.

[4] Within the first decade of settlement, the bustling village of Meridianville offered several mills, gins, and stores.

The population was 11,526 in 2024, making it the second fastest growing place in Madison county after Triana.

14.7% of all households were made up of individuals, and 4.6% had someone living alone who was 65 years of age or older.

There were 2,353 housing units at an average density of 151.8 per square mile (58.6/km2).

19.3% of all households were made up of individuals, and 6.3% had someone living alone who was 65 years of age or older.

As of the 2020 United States census, there were 8,209 people, 2,759 households, and 2,020 families residing in the CDP.