Thryothorus ludovicianus, commonly known as the Carolina Wren, is native to the southeastern United States. Its range extends from the eastern Great Plains eastward to the Atlantic Coast, and from the southern Great Lakes region down to the Gulf of Mexico.

The Carolina Wren typically inhabits areas with dense vegetation, which provides ample cover and foraging opportunities. These environmental conditions include forests, swamps, thickets, and suburban areas with sufficient undergrowth. The climate within its range is predominantly temperate, often involving hot, humid summers and mild winters, although the species has shown adaptability to colder climates.

The Carolina Wren occupies the ecological niche of an insectivorous forager within its habitat. It plays a crucial role in controlling insect populations and is known for its adaptability to different environmental conditions as long as there is ample vegetation for shelter and nesting. The bird is versatile in its nesting habits, often taking advantage of human structures such as sheds and porches when natural options are limited.