San Dimas's housing stock is overwhelmingly single-family and suburban, reflecting the city's mid-20th-century incorporation and its foothill setting. The residential landscape includes ranch-style and contemporary homes on conventional lots, with many streets in the northern portion of the city backing toward the San Gabriel Mountains. Compared with the denser, older communities closer to downtown Los Angeles, San Dimas offers a more spacious, low-rise suburban fabric with a strong owner-occupied character. The city's growth occurred largely during the post-war suburban expansion of the San Gabriel Valley, so the housing stock leans toward mid-century and later construction rather than historic homes. Buyers are drawn to the combination of mountain views, well-regarded schools, and the relative calm of a foothill community, with attached and multi-family options concentrated near the commercial corridors.

San Dimas's sense of place centers on its foothill neighborhoods and its Western-themed downtown. The downtown district along Bonita Avenue retains a distinctive Western character, with storefronts that recall the city's ranching and citrus past, and it serves as the community's civic and retail heart. Residential neighborhoods fan out from the center, with homes in the northern foothills enjoying direct proximity to the San Gabriel Mountains and San Dimas Canyon, while areas farther south transition toward the flatter Pomona Valley landscape. The city is bordered by La Verne to the east and Glendora to the west, and its neighborhoods blend into this larger corridor of foothill suburbs. Bonelli Regional Park's open space defines the city's southern edge, giving many neighborhoods a sense of separation from urban density.

San Dimas offers a quiet, family-centered lifestyle shaped by its foothill setting and its small-town identity within the San Gabriel Valley. The Western-themed downtown hosts community events and independent businesses, and the city's civic life revolves around schools, parks, and local traditions. Frank G. Bonelli Regional Park provides everyday outdoor access for boating, fishing, picnicking, and walking, while the San Gabriel Mountains offer hiking and scenic drives minutes from most neighborhoods. Residents benefit from the dining and cultural offerings of the broader San Gabriel Valley, including the adjacent college communities of La Verne and Claremont, without living amid the region's busier commercial corridors. The city's deliberate small-town character, combined with mountain views and a strong school district, makes it a long-standing draw for households seeking stability and space in eastern Los Angeles County.

San Dimas is served by the Bonita Unified School District, which is headquartered in the city and also serves neighboring La Verne. The district operates a set of well-regarded neighborhood schools, including San Dimas High School, Bonita High School, and a number of elementary and middle schools such as Shull Elementary, Lone Hill Middle School, and Ramona Middle School. The district's relatively compact boundaries and established reputation make schools a central consideration for families moving to the area. Beyond K-12, San Dimas is within easy reach of Citrus College in Glendora and the Claremont Colleges and Cal Poly Pomona, giving residents strong higher-education and continuing-education options across the eastern San Gabriel Valley.

San Dimas is connected to the Los Angeles basin by the Foothill Freeway (Interstate 210), which runs along the city's northern edge and links the eastern San Gabriel Valley to Pasadena and Los Angeles to the west and the Inland Empire to the east. State Route 57 lies a short distance to the west, providing access south to Orange County, while Interstate 10 is reachable via the 57 corridor. The city has a Metrolink station on the San Bernardino Line, offering commuter rail service into downtown Los Angeles and toward San Bernardino. The flat valley terrain and residential street grid support local bicycling, and the foothill location keeps the San Gabriel Mountains' recreational areas within a short drive for residents throughout the year.

Frank G. Bonelli Regional Park is San Dimas's outdoor centerpiece. Built around Puddingstone Reservoir, the park offers boating, fishing, hiking, and equestrian trails, along with picnic areas and open space that anchor recreation for the eastern San Gabriel Valley. To the north, San Dimas Canyon leads into the San Gabriel Mountains, where the Angeles National Forest provides extensive hiking, camping, and scenic drives within minutes of the city. The mountains also offer winter snow access at higher elevations. Local parks and school athletic facilities serve neighborhood recreation, while the broader region adds the beach, desert, and mountain destinations that define Southern California living. The combination of a large regional park and immediate mountain access gives San Dimas residents substantial outdoor opportunity without leaving the area.