Settlement follows the major roads through the community, which follow higher ground. Large areas away from the roads are wetland and mainly undeveloped. Louisiana Highway 20 runs through the western part of the CDP, leading south to Thibodaux, the parish seat, and northeast to Vacherie. Highway 304 runs west and southwest from Highway 20 to Bayou Lafourche west of Thibodaux, and Highway 307 runs east to Kraemer. Unincorporated communities within the Chackbay CDP are, from west to east, Choupique, Chegby, and Chackbay.