Unduplicated Headcount

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Unduplicated Headcount is the sum of students or employees where each student or employee is counted only once during the reporting period.

Where Term Appears
CSUMB Data Warehouse Dashboards:
Data Custodian
Institutional Assessment and Research
Data Source
Source System:CMS - SA
Source Table Name:N/A
Source Field Name:N/A
Census Process:N/A
Logical Transformation / Calculation
OBIEE Folder and Column
Folder Heading:N/A
Column Heading:N/A


For example, if a student was enrolled in the fall and spring terms, they would be counted only once for academic year reporting.

See Also

Definition Source

"Unduplicated count: The Sum of students enrolled for credit with each student counted only once during the reporting period, regardless of when the student enrolled."[1]


  1. National Center for Education Statistics. IPEDS Data Collection System. 2018-19 Survey Materials: Glossary. Retrieved from: https://surveys.nces.ed.gov/ipeds/Downloads/Forms/IPEDSGlossary.pdf.