Millbrae's housing stock is dominated by established single-family homes, many set on the city's rolling hillsides with bay and mountain views, along with a smaller number of condominiums and apartments near downtown and the transit station. The city covers just over three square miles and is largely built out, giving it a mature, stable residential character. Homes span several decades of construction, from mid-century ranches to newer infill, reflecting the Peninsula's long suburban history. The mix of hillside lots, proximity to SFO, and strong rail access shapes the market's enduring appeal for commuters and families rather than any single era of development.

Millbrae is organized around several residential districts that climb the hillsides above El Camino Real and Broadway. The Broadway and downtown area near Millbrae Avenue anchors shopping and dining, while neighborhoods extend up the hill toward the San Bruno Mountains and down toward the bayfront. Mills High School and the civic center sit near the heart of the city. Neighboring communities include San Bruno to the north, Burlingame to the south, and the San Francisco Bay to the east, with SFO on the city's southern edge. The BART-Caltrain station serves as a focal point connecting Millbrae's neighborhoods to the wider Bay Area.

Life in Millbrae blends suburban Peninsula calm with exceptional transit convenience. Broadway, the city's main commercial street, is known for its diverse dining scene, with a notable concentration of Asian restaurants alongside neighborhood shops and cafes. The city is family-oriented and quiet, with tree-lined streets and views of the bay and the San Bruno Mountains. Its position between San Francisco and the Peninsula's employment corridor, combined with the BART-Caltrain station, makes it a practical base for commuters. Residents enjoy nearby recreation at the bayfront, Junipero Serra Park, and the trails of San Bruno Mountain, with San Francisco's cultural offerings a short train ride away.

Millbrae is served by two public school districts. The Millbrae Elementary School District operates the city's kindergarten through eighth grade schools, while the San Mateo Union High School District serves high school students, with Mills High School located within Millbrae. Mills High is consistently ranked among the top public high schools in California. The city also has private and parochial options nearby. For higher education, residents have access to the College of San Mateo, Skyline College, San Francisco State University, and the broader Bay Area's universities. Families are drawn to the combination of strong local schools and the region's educational resources.

Millbrae is one of the Peninsula's principal transit hubs. The Millbrae station combines BART and Caltrain in a single intermodal facility, with BART providing service to San Francisco, the East Bay, and a direct one-stop link to San Francisco International Airport, while Caltrain runs along the Peninsula between San Francisco and San Jose. SamTrans buses serve the station and local routes. U.S. 101 and Interstate 280 run through or near the city, offering highway access across the Bay Area. SFO is immediately south, and the city's rail links make both San Francisco and Silicon Valley readily commutable without a car.

Recreation in Millbrae draws on the city's parks and its position between the bay and the hills. Junipero Serra Park, a San Mateo County park, offers trails and hillside views, while San Bruno Mountain State and County Park, just north, provides hiking with sweeping views of the bay. The San Francisco Bay Trail runs along the waterfront, connecting Millbrae to regional walking and cycling routes. The city maintains neighborhood parks and sports fields, and the nearby Coyote Point Recreation Area offers beach access and picnic grounds. San Francisco's Golden Gate Park, Ocean Beach, and cultural institutions are a short BART or car trip away.