Mesa Court
The first residential community to be built on the campus in 1965, Mesa Court has grown to 29 halls, and houses roughly 1,800 students (including student staff). Each hall is coeducational with single-sex suites, and houses between 52-66 students in single, double, and triple occupancy rooms.

Middle Earth
The first phase of Middle Earth opened in 1975 with seven halls. Middle Earth now spans 24 halls, housing roughly 1,600 students (including student staff). Each hall houses between 48 and 72 students in single, double, and triple occupancy rooms. Suites are designed to accommodate both coed and single-gender living, and there is one all female hall in the complex.

Campus Village
Opened in 1980, Campus Village consists of 200 apartments that house 796 students (including student staff). Each apartment houses four students sharing 2 bedrooms, a bathroom, a kitchen, a living/dining area, and either a balcony or a patio. Apartments are occupied by a single gender (male/female), and there are both furnished and unfurnished units. Campus Village offers both year-round (12 month) and academic year (9 month) contracts. Campus Village houses continuing students, incoming transfer students, and a limited number of freshmen (as overflow housing when residence halls and Arroyo Vista are filled).

Arroyo Vista : Freshman, Continuing and Transfer Student Housing
Located on the east side of campus, Arroyo Vista consists of 40 “theme houses" and houses about roughly 1,000 students (including student staff).  Each house accommodates either 16, 24, or 32 students, in double occupancy rooms. Each house has its own living room, dining room and kitchen, where residents share facilities and prepare their own meals. (Students living in Arroyo Vista have the option to purchase one of the voluntary meal plans listed on the UCI Dining Web site.) The houses include both academic theme houses which are sponsored by specific departments on campus, as well as fraternity and sorority chapter houses. Resident involvement in house functions is a core value in Arroyo Vista, and each house provides many unique opportunities for residents, faculty house sponsors, and guests to participate in educational and other enrichment activities. Arroyo Vista houses incoming freshman and transfer students, and continuing students.

Palo Verde: Graduate Students and Medical Students (singles and families)
Palo Verde is a year-round community consisting of 652 apartments--studios, 1, 2, and 3 bedroom apartments—housing roughly 1105 graduate and medical students (some with families). Palo Verde recently underwent a major expansion which was completed Fall 2005.

Verano Place: Graduate Students, Medical Students, Families, and Undergraduates 25 years and older
Verano Place is a year-round community consisting of 862 one-, two-, and three-bedroom units, housing roughly 1,235 students (some with families). Single students are assigned to 2 or 3-bedroom single gender apartments (one student per bedroom).