3% of students reported two or more races and 5% did not report their race or ethnicity. The vast majority - 85% - were from the state of Illinois and about 1% were from outside the United States. About two-thirds - 63% - of full-time students who enrolled in the fall of 2022 returned for the fall of 2023. Of the full-time, first-time students who began their studies at Eureka in fall 2017, 41% graduated and 42% transferred to another institution.
== Greek life ==
As of 2019, 23% of male students are in social fraternities, while 26% of female students are in social sororities. Overall 24% of the student body are involved in Greek life. In February 2020, the college's chapter of Delta Sigma Phi was disciplined due to unknown allegations.
== Athletics ==
The Eureka athletic teams are the Red Devils. The college is a member of the Division III level of the National Collegiate Athletic Association (NCAA), primarily competing in the St. Louis Intercollegiate Athletic Conference (SLIAC) since the 2006–07 academic …
