The PhD in Microbiology is awarded by the Graduate College.

Admission Requirements

Applicants must meet the Admission Requirements of the Graduate College and the department offering the degree program (review the department's web site or the General Catalog for departmental requirements).

International students whose first language is not English are advised to review the English language proficiency recommendations for prospective applicants.  

Estimated Cost of Attendance

Tuition and fees vary by degree program and the type of student you are.

Application Deadlines

  • Fall semester—December 21
  • Spring semester—not offered
  • Summer session—not offered

Application Procedures

Step 1:  Preliminary Application

Applicants to the Microbiology graduate program are required to submit the FREE Preliminary Application.  The preliminary application saves you time and money while streamlining the admissions process for 11 biomedical PhD training programs, including the Department of Microbiology.  Applications received after the deadline above may be considered on a rolling basis.

  • Submit FREE Preliminary Application;
  • Upload unofficial transcripts to the Preliminary Application;
  • Submit three letters of recommendation via the Preliminary Application;
  • Self-report GRE test score results on the Preliminary Application; and
  • Self-report TOEFL test score results on the Preliminary Application (foreign applicants only).

Step 2:  If your FREE Preliminary Application is approved by the Department of Microbiology you will receive a communication directly from the Department of Microbiology requesting you Apply Online to the University.

The University of Iowa application carries a $60 application fee ($100 for international applicants) payable by Discover, MasterCard, or Visa.

Materials to send to Admissions after you have received communication indicating your preliminary application has been accepted:

  • A set of your unofficial academic records/transcripts uploaded on your Admissions Profile. If you are admitted, official transcripts will be required before your enrollment.
  • Your official GRE scores from Educational Testing Service (the University’s institutional code is 6681)
  • International students may also be required to submit TOEFL, IELTS, or PTE scores to comply with the university’s English Language Proficiency Requirements.
  • Once recommended for admission, international students must send a Financial Statement


If your FREE Preliminary Application is approved by the Department of Microbiology, then Apply Online to the University, the $60 application fee ($100 for international students) is payable by Discover, MasterCard, or Visa.

Contact Information

Department of Microbiology
The University of Iowa
3-403 Bowen Science Building
Iowa City, IA 52242

Preliminary Application
Office of Graduate and Postdoctoral Studies
The University of Iowa Carver College of Medicine
Phone: 319-335-8306

Office of Admissions
The University of Iowa
107 Calvin Hall
Iowa City, IA 52242-1396