The history of Hammond dates back to 1818, when Swedish immigrant Peter Hammond (born Peter av Hammer) purchased land in the area. Initially, the settlement developed as a private estate where the founder engaged in harvesting resources for maritime trade, specifically timber for ship masts.
The transformation of a small plantation into a developed city was driven by strategically important changes in the mid-19th century. A decisive moment was the construction of the New Orleans, Jackson and Great Northern Railroad in 1854. The station was named "Hammond’s Crossing," which ensured a steady flow of people and goods. This was also aided by a favorable geographic location: the city sat on high ground amidst pine forests, north of the marshy areas of New Orleans, making the territory attractive for settlement.
The economic foundation of early Hammond was built on utilizing the region's natural resources, primarily logging and the production of wood products. Thanks to the railroad, the city quickly became an important trading point, which later laid a solid foundation for the development of commercial agriculture, which became the region's hallmark.