Dartmouth College is located in the rural town of Hanover in the Upper Valley of the Connecticut River in the New England state of New Hampshire. Dartmouth's 269-acre (1.09 km2) campus centered on The Green makes the institution the largest private landowner of the town of Hanover, and its landholdings and facilities are valued at an estimated $419 million. Dartmouth's campus buildings vary in age from several early 19th century buildings to a number of ongoing construction projects. Most of Dartmouth's buildings are designed in the Georgian style, a theme which has been preserved in recent architectural additions.
As opposed to ungrouped dormitories or "residential colleges" as employed at such institutions as Yale University or Princeton University (in imitation of the colleges of Cambridge and Oxford), Dartmouth residence halls are grouped into nine "communities," each composed of one to three "clusters" of dormitories. Dartmouth houses approximately 3,300 students in its facilities, or about 85% of the student body; the remaining 15% opt to live in off-campus housing. The Housing Office consists of three employees that house students four times a year (not including the interim period), due to the college's enrollment plan (the "D-Plan").
Every cluster or group of clusters is administered by a live-in Community Director. Approximately one-third of the rooms are singles; the remaining rooms vary among "one, two, and three-room doubles, one, two, and three-room triples, two, three, and four-room quads, apartments and suites."
Affinity programs are a housing option for Dartmouth students, described as "residentially-based, educationally-purposeful living opportunities for residents that center around a self-defined Academic or Special Interest programmatic focus." Some affinity programs are housed in sections or on floors of larger dormitories; those listed below are only the programs in their own free-standing structures.