/education-data-source-ipeds

name: education-data-source-ipeds
description: >-
  IPEDS — primary federal postsecondary data (~6,500 institutions, 1980-present): enrollment, completions, graduation rates, finance, aid, admissions, HR. For college/university analysis. Grad rates = first-time full-time; finance needs GASB/FASB care.
metadata:
  audience: any-agent
  domain: data-source
  skill-authored: "2026-02-09"
  skill-last-updated: "2026-02-09"

IPEDS Data Source Reference

IPEDS (Integrated Postsecondary Education Data System) — the primary federal data system for ~6,500 U.S. postsecondary institutions, comprising 12+ annual survey components: enrollment, completions, graduation rates, finance, financial aid, admissions, human resources, and institutional characteristics (1980-present, varies by component). Use when analyzing postsecondary enrollment, degree completions by CIP code, institutional finances, or admissions data. Graduation rates track first-time full-time students only (150% cohort). Cross-sector finance comparisons require care due to GASB vs. FASB accounting.

Comprehensive guide to understanding and using IPEDS data correctly. IPEDS is the most widely used source for postsecondary education data but has significant complexities — including sector-specific accounting standards, cohort-limited graduation rates, and integer-encoded categorical variables — that users must understand.

> **CRITICAL: Value Encoding** > > This document describes **Education Data Portal** integer encodings, which differ from NCES raw file string codes. The Portal converts categorical variables to integers for consistency across sources. > > | Context | Race White | Race Black | Sex Male | Sector Public 4-yr | > |---------|------------|------------|----------|-------------------| > | **Portal (integers)** | `1` | `2` | `1` | `1` | > | NCES raw files | `EFFY_WHITE` | `EFFY_BKAA` | `M` | varies | > > **Always verify codes against Portal codebooks** (available alongside each dataset in the Portal mirrors).

What is IPEDS?

IPEDS (Integrated Postsecondary Education Data System) is a system of 12+ interrelated survey components:

• **Administered by**: National Center for Education Statistics (NCES)
• **Coverage**: ~6,500 Title IV-participating postsecondary institutions
• **Frequency**: Annual collection in three periods (Fall, Winter, Spring)
• **Mandate**: Required for Title IV federal student aid participation
• **Available years**: 1980-present (varies by component)
• **Primary identifier**: UNITID (6-digit institution ID)
• **Available through**: Education Data Portal mirrors (32 datasets covering most survey components; some variables not mirrored — see Data Access section)

Reference File Structure

| File | Purpose | When to Read | |------|---------|--------------| | `survey-components.md` | All 12+ IPEDS surveys with collection periods | Understanding data structure | | `graduation-rates.md` | **CRITICAL** GRS limitations and who is tracked | Any graduation rate analysis | | `enrollment-data.md` | Fall vs 12-month, FTE calculations | Enrollment comparisons | | `finance-data.md` | GASB vs FASB accounting standards | Cross-sector finance analysis | | `financial-aid.md` | Net price, aid types, populations | Aid and cost analysis | | `institution-identifiers.md` | UNITID, OPEID, mergers, closures | Data linking and longitudinal work | | `completions-data.md` | Degrees awarded, CIP codes | Completions and outcomes | | `data-quality.md` | Known issues, sector comparisons | Quality assurance |

Decision Trees

What data am I working with?

Working with IPEDS data?
├─ Graduation rates → ./references/graduation-rates.md (READ FIRST!)
├─ Enrollment counts → ./references/enrollment-data.md
├─ Finance/revenue/expenses → ./references/finance-data.md
├─ Financial aid/net price → ./references/financial-aid.md
├─ Degrees/completions → ./references/completions-data.md
├─ Institutional info → ./references/survey-components.md (IC section)
├─ Human resources/salaries → ./references/survey-components.md (HR section)
└─ Linking to other data → ./references/institution-identifiers.md

Is my analysis valid?

Cross-sector comparison?
├─ Comparing grad rates across sectors
│   └─ CAUTION: Different populations → ./references/graduation-rates.md
├─ Comparing finances across sectors
│   └─ CAUTION: GASB vs FASB → ./references/finance-data.md
├─ Comparing net price across sectors
│   └─ CAUTION: Aid populations differ → ./references/financial-aid.md
└─ Time series analysis
    └─ Check for institutional changes → ./references/institution-identifiers.md

Finding specific variables?

Need variable definitions?
├─ Survey component overview → ./references/survey-components.md
├─ Graduation cohort definitions → ./references/graduation-rates.md
├─ Enrollment level/status → ./references/enrollment-data.md
├─ Revenue/expense categories → ./references/finance-data.md
├─ Aid types and populations → ./references/financial-aid.md
└─ CIP codes for programs → ./references/completions-data.md

Quick Reference: Survey Components

| Component | Abbrev | Collection | Key Content | |-----------|--------|------------|-------------| | Institutional Characteristics | IC | Fall | Directory, tuition, mission | | 12-Month Enrollment | E12 | Fall | Unduplicated headcount, FTE | | Completions | C | Fall | Degrees by CIP, demographics | | Cost | CST | Fall/Winter | Cost of attendance, net price | | Admissions | ADM | Winter | Applications, admits, enrollees | | Student Financial Aid | SFA | Winter | Aid counts and amounts | | Graduation Rates | GR | Winter | 150% completion rates | | Graduation Rates 200% | GR200 | Winter | 200% completion rates | | Outcome Measures | OM | Winter | Part-time and transfer outcomes | | Fall Enrollment | EF | Spring | Point-in-time enrollment | | Finance | F | Spring | Revenue, expenses, assets | | Human Resources | HR | Spring | Employees, salaries | | Academic Libraries | AL | Spri