Cumby's housing market is small, affordable, and rooted in the town's rural character. Homes are predominantly established single-family houses on town and country lots, with open farmland and pasture surrounding the community. The town's modest scale means there is little large-scale subdivision development; instead, the market is defined by existing homes and occasional rural acreage. Buyers are typically drawn by affordability, the small-town setting, and the convenience of Interstate 30, which makes Cumby workable for those who want country living while commuting toward Sulphur Springs, Greenville, or the Dallas area.

Life in Cumby is quiet and rural, with the pace of a small Northeast Texas town. The community's scale keeps neighbors connected, and school and local gatherings anchor the calendar. The presence of Interstate 30 gives residents an unusual convenience for a town of its size, making it easy to reach Sulphur Springs for county services and shopping or to head west toward the Dallas–Fort Worth area. Residents value the combination of affordable, unhurried country living and a major highway at the doorstep, and the surrounding farmland reinforces the town's agricultural character even as the interstate keeps the wider region close.

Cumby is served by Cumby Independent School District, a small 1A public district that educates students from pre-kindergarten through high school in a close-knit rural setting. The district's small size keeps classrooms and programs tightly connected to the community, with school athletics and activities serving as central gathering points for the town. For specialized services and post-secondary education, students and families look toward Sulphur Springs and the larger institutions of the Dallas–Fort Worth region, all reachable along the area's highway network.

Cumby's defining transportation asset is Interstate 30, which runs past the town and provides direct highway access about 70 miles east-northeast to Dallas, while connecting east toward the Piney Woods and Texarkana. The interstate makes Cumby a convenient base for commuting to Sulphur Springs, Greenville, and the wider Dallas–Fort Worth metroplex, a rarity for a town of its size. Personal vehicles are essential for daily life, and the highway frontage brings travelers and services through the community. There is no public transit serving the town, so all errands and commutes depend on the area's road network.

Recreation in Cumby is low-key and tied to the surrounding countryside, with the open farmland and rolling terrain of Hopkins County offering space for a quiet, outdoors-oriented lifestyle. The town's small scale means residents look to nearby Sulphur Springs and the larger Northeast Texas region for parks, lakes, and organized recreation, while the Interstate 30 corridor provides access to the entertainment and recreation options of the Dallas area to the west. For most residents, recreation means the simple pleasures of country living rather than a dense menu of local attractions.