With farms in towns surrounding the city connected by roads and canals, Long Xuyen (and its Quadrilateral Region) serves as a major conduit for producers of a number of commodities, with jasmine rice and basa fish being the two most well-known.

[6] The proliferation of irrigation canals in the city has provided a major boon to the region's economy, but also poses a threat to environmental protection and community safety.

Thoại Ngọc Hầu is a specialized school for majors of English, Mathematics, Chemistry, Physics, Literature, and Biology.

With its proximity to Cambodian border to the north, the coastline of the Gulf of Thailand (Pacific Ocean) to the west (of nearby Kien Giang province), and the Mekong River dissecting surrounding towns (but Hau River dissecting the city itself), the cuisine of Long Xuyen is heavily influenced by both local goods as well as products passing through.

Bun Ca Long Xuyen is a distinct specialty to the city that can be found by street vendors, who make a broth with snakehead fish and tamarind to eat with rice noodles and herbs.