Housing in De Kalb is predominantly single-family and modest, reflecting the town's agricultural and small-town roots. The stock ranges from early- and mid-century homes in the established center to newer construction and rural acreage on the outskirts. Lots tend to be larger than in big-city subdivisions, and many properties include shade trees and open yard space. Buyers are drawn by affordability, the small school district, and proximity to Texarkana.

De Kalb is a small town organized around its school campuses, the U.S. Highway 82 and 259 junction, and the residential streets that radiate from the center. Homes mix with churches, small businesses, and civic buildings, while farmland and pine woods surround the city. Nearby communities include New Boston to the east and Avery to the west, with Texarkana serving as the regional hub.

Life in De Kalb is quiet and rooted in the rhythms of a northeast Texas small town. School events, church activities, and community gatherings anchor the calendar, and hunting, fishing, and gardening are common pastimes. Residents value the slower pace and neighborly feel, while Texarkana's shopping, healthcare, and entertainment remain a short drive away. It is a place for families and retirees seeking affordability and community.

De Kalb is served by the DeKalb Independent School District, which operates three campuses—elementary, middle, and high school—educating roughly 900 students. The district is a central institution in the community, with the DeKalb Bears anchoring local athletics. Nearby Texarkana and New Boston maintain their own districts, and higher education is available through Texarkana College and Texas A&M University-Texarkana.

De Kalb sits at the junction of U.S. Highways 82 and 259 in western Bowie County. U.S. Highway 82 connects the town east to Texarkana, and Interstate 30 lies a short distance to the south, linking the region to Dallas to the west and Arkansas to the northeast. Regional highways make Texarkana and the wider Ark-La-Tex area readily accessible for commuting, shopping, and services.

Outdoor recreation around De Kalb centers on the area's lakes, creeks, and pine woods. Wright Patman Lake, a short drive toward Texarkana, offers fishing, boating, and camping, and the Red River bottomlands and surrounding timberland support hunting and wildlife watching. Local parks and school athletic fields serve the community, and Texarkana adds additional parks, trails, and cultural attractions within a short drive.