University of California, Irvine

The University of California, Irvine is a public research university in Irvine, California, founded in 1965 as one of the newer campuses in the University of California system. Built on a 1,000-acre parcel of the Irvine Ranch that the Irvine Company sold to the university for one dollar, it has grown into a campus of 1,475 acres with 30,260 undergraduates enrolled as of fall 2025. In fiscal year 2023–24 it pulled in a record $668 million in research grants and contracts, the highest single-year total in campus history. Its faculty, alumni, and affiliates include Nobel laureates in physics, chemistry, and medicine, and its community of more than 240,000 alumni counts 5 Nobel Prize recipients, 7 Pulitzer Prize winners, and a Dan David Prize winner as of 2026.

Key facts

  • Country: United States
  • Founded: 1965
  • Type: public research university; public educational institution of the United States
  • Parent organisation: University of California
  • Employees: 9,330
  • Website: https://uci.edu

Origins and Campus Design

President Lyndon B. Johnson formally dedicated the campus on June 20, 1964, a year before instruction began. The land itself cost a symbolic dollar: the Irvine Company transferred the 1,000-acre site on the Irvine Ranch under that arrangement so the University of California could establish its newest campus in Orange County.

Architect William Pereira laid out the campus around a circular plan, with all undergraduate schools arranged along Ring Road. At the center sits Aldrich Park, named for founding Chancellor Daniel Aldrich. Pereira conceived the concentric layout to represent expanding circles of knowledge, and the idea reportedly took early shape when UC President Clark Kerr sketched a circle on a napkin, writing discipline names around it, during a conversation with Pereira and Aldrich.

Aldrich Park itself was built without any paved paths cutting across it. Students were left to wear their own routes into the grass, a deliberate choice by Chancellor Aldrich intended to serve as a physical metaphor for intellectual self-direction.

Early Years

The university opened in 1965, and its first graduation ceremony followed in 1966. That inaugural class was small enough to fit in a modest room: only fourteen students received degrees.

From that starting point the institution expanded steadily. By fall 2025, undergraduate enrollment stood at 30,260, and a record 149,000 students sought admission for that same fall term, placing UC Irvine among the top five American universities by volume of undergraduate applications received.

Academic Structure

The university operates on a quarter-based academic calendar and maintains a student-to-faculty ratio of 20:1 as of fall 2025. Among its schools, the Donald Bren School of Information and Computer Sciences holds a distinction shared by no other campus in the University of California system: it is the only school within UC dedicated exclusively to information and computer sciences.

In the 2024–25 graduating class, 42 percent of students earning bachelor’s degrees were first-generation college students. That figure contributed to the university receiving the Carnegie dual designation of R1 Research University and Opportunity College and University in the 2025 Carnegie Classifications, a pairing held by only 21 institutions nationwide.

Research

UC Irvine has been ranked among the nation’s top 10 public universities for 12 consecutive years by U.S. News & World Report as of 2026. The $668 million in research grants and contracts recorded in fiscal year 2023–24 broke the campus’s own record. Of that total, nearly $455 million supported basic research and approximately $143 million funded clinical trials.

A notable benchmark arrived in 1995, when faculty members Frederick Reines and F. Sherwood Rowland won Nobel Prizes in physics and chemistry respectively, making UC Irvine the first public university to have faculty honored with Nobel Prizes in two different fields in the same year. Subsequent faculty laureates include Irwin A. Rose in chemistry in 2004 and Leland Hartwell in medicine in 2021. The university’s wider community also includes alumnus David MacMillan, who received the chemistry Nobel in 2021, and former postdoctoral scholar Mario Molina, the 1995 chemistry laureate.

Athletics

UCI Athletics competes at the NCAA Division I level as a member of the Big West Conference. As of the 2025–26 season, the program had accumulated 28 national championships and 64 individual NCAA titles.

The Orange County Museum of Art Acquisition

On September 29, 2025, UC Irvine completed its acquisition of the Orange County Museum of Art, merging it into the institution now called the UC Irvine Langson Orange County Museum of Art. The university assumed stewardship of the museum’s 53,000-square-foot, $98 million facility at the Segerstrom Center for the Arts in Costa Mesa, along with a combined collection of more than 9,000 works.

Employment and Scale

The university employs 9,330 people and is part of the broader University of California system. Its campus has expanded from the original 1,000-acre parcel to 1,475 acres, and the alumni community numbered more than 240,000 as of 2026.

Did you know

  • UC Irvine is the only university in the world with an anteater as its mascot. The team war cry “Zot” is borrowed from the “B.C.” comic strip, where it was the sound effect used whenever the anteater’s tongue caught an ant. (ncaa.com)
  • The circular campus design, with Ring Road encircling Aldrich Park, traces part of its origin to a napkin sketch. UC President Clark Kerr drew a circle and wrote discipline names around it during a conversation with architect William Pereira and founding Chancellor Daniel Aldrich. (news.uci.edu)
  • The first graduation ceremony in UCI’s history, held in 1966, awarded degrees to exactly fourteen students. (kids.kiddle.co)
  • Aldrich Park at the center of campus has no paved paths cutting across it. Founding Chancellor Daniel Aldrich left the interior unpaved deliberately, so that students would form their own routes through the grass as a metaphor for intellectual discovery and self-direction. (admissions.uci.edu)

Data sources

Data updated: 2026-10-27