Carnation's housing reflects its rural character. Homes are typically single-family and set on larger lots, with acreage and farm properties common throughout the surrounding valley. The housing stock is a mix of older farm-era homes and newer single-family construction, and the community's low density and open landscape distinguish it from the denser Eastside suburbs. Buyers are often drawn by the availability of land, the Snoqualmie Valley scenery, and the ability to keep animals or gardens. Growth has been measured, preserving the area's working-rural feel.

Carnation's layout follows the rivers and the valley floor. The compact original townsite sits near the confluence of the Snoqualmie and Tolt rivers, with older homes and the city's small commercial core, while residential streets and farm properties spread outward onto the surrounding bottomland. The broader lower Snoqualmie Valley — taking in nearby Duvall and unincorporated farm country — shares Carnation's rural character. This is a community defined less by formal subdivisions than by the river landscape, farmland, and forested foothills that frame it.

Life in Carnation is grounded in the valley's agricultural rhythms and open space. Carnation Farms anchors the community's identity with its farm, events, and food-education programs, while the Snoqualmie and Tolt rivers provide fishing and scenic riverfront. The pace is quiet and rural, with many residents keeping gardens, animals, or acreage. Nearby Duvall offers additional shops and services, and the Eastside's employment and retail centers are within commuting distance. It suits those who want country living without leaving the Seattle region entirely.

Carnation is served by the Riverview School District, a King County district that educates students in Carnation, Duvall, and the surrounding lower Snoqualmie Valley. Carnation Elementary School is located within the city, and older students attend the district's middle and high schools serving the broader Duvall–Carnation area. The district's small-town scale keeps ties close between schools and the community. Families seeking additional options can look to neighboring districts and the private schools of the Eastside.

Carnation is reached primarily via State Route 203, which runs north-south through the lower Snoqualmie Valley, connecting the city to Duvall and Monroe to the north and to Fall City and the Snoqualmie area to the south. From Carnation, routes lead west toward Redmond, the Eastside technology corridor, and Seattle, roughly 25 miles away. The city's rural setting means driving is the primary mode of transport, and the commute to Eastside employment centers follows scenic valley and foothill roads. Seattle-Tacoma International Airport is reached via the regional highway network.

Recreation in Carnation centers on the Snoqualmie and Tolt rivers and the surrounding valley. The rivers offer fishing, kayaking, and river access, while the valley's farm roads and foothills provide scenic cycling and walking. Carnation Farms hosts community events and educational programs that draw visitors from across the region. Nearby, the parks and trail systems of the Snoqualmie Valley and Cascade foothills offer hiking and outdoor access, with Snoqualmie Falls and the mountain trailheads of the upper valley within a short drive.