Union City's housing stock is largely single-family, reflecting its growth as a mid-to-late-20th-century suburb of Atlanta. Established neighborhoods of modest ranch and split-level homes are common, with newer residential development added around the city's edges. The area's airport proximity has also supported a segment of rental and multifamily housing serving a mobile workforce. Tree-lined residential streets and neighborhood parks characterize much of the community, and the city's location offers relatively direct commutes to the airport and major employment corridors in southern Fulton County.

Union City is organized around established residential neighborhoods served by local elementary schools and city parks. The area around Ronald Bridges Park and the city's recreation facilities forms a community focal point, while neighborhoods radiate outward toward the city's commercial corridors. Because the city is closely tied to the airport and regional employment centers, its neighborhoods tend to function as commuter-oriented residential areas rather than a single dense downtown. The broader south Fulton landscape of interconnected suburbs shapes the community's day-to-day geography.

Life in Union City is oriented around schools, parks, and the convenience of the airport corridor. The city's parks and recreation department runs programs and activities for residents of all ages, and neighborhood parks provide gathering space. Dining, shopping, and entertainment are available along the city's commercial corridors and in the surrounding south Fulton and Clayton County communities, with the full range of Atlanta's amenities a short drive away. The pace is suburban and practical, appealing to households connected to the airport, logistics, and the wider metro economy.

Union City is served by the Fulton County School District, which operates local elementary, middle, and high schools, including C.H. Gullatt Elementary and Benjamin E. Banneker High School. The district is one of Georgia's largest and serves much of the county outside the City of Atlanta's own system. Families also have access to technical colleges and other post-secondary options nearby, and the city's metro location puts the Atlanta region's colleges and universities within commuting distance.

Union City's transportation identity is defined by its proximity to Hartsfield-Jackson Atlanta International Airport, located just minutes away and among the world's busiest by passenger traffic. Major interstate corridors in southern Fulton County connect the city to downtown Atlanta and the wider metro area, and the airport itself anchors the region's aviation, freight, and distribution networks. For commuters, the city's location shortens trips to airport-area employers and offers access to the broader Atlanta highway system.

Union City's parks and recreation department maintains neighborhood parks with playgrounds, picnic areas, pavilions, and athletic facilities. Ronald Bridges Park is a local favorite for its natural setting and recreational offerings. Youth and adult recreation programs operate throughout the year, and the city's parks provide green space for family gatherings and community events. Regional parks, trails, and attractions across the south Atlanta metro are within a short drive.