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Four-year institutions in the US

Four-year institutions may offer bachelor degrees alongside other awards. Institution classification does not determine the length or admissions requirements of every course.

Classification source: connected NCES IPEDS directory records; reporting years appear on institution pages.

4245 institutions in this collection. Understand the full study budget →

OK · Four-year

Oklahoma State University Center for Health Sciences ↗

Tulsa, OK

Public · Directory 2025

OK · Four-year

Oklahoma State University Institute of Technology ↗

Okmulgee, OK

Public · Directory 2025

OK · Four-year

Oklahoma State University-Main Campus ↗

Stillwater, OK

Public · Directory 2025

OK · Four-year

Oklahoma State University-Oklahoma City ↗

Oklahoma City, OK

Public · Directory 2025

OK · Four-year

Oklahoma Wesleyan University ↗

Bartlesville, OK

Private nonprofit · Directory 2025

VA · Four-year

Old Dominion University ↗

Norfolk, VA

Public · Directory 2025

IL · Four-year

Olivet Nazarene University ↗

Bourbonnais, IL

Private nonprofit · Directory 2025

WA · Four-year

Olympic College ↗

Bremerton, WA

Public · Directory 2025

TN · Four-year

Omega Graduate School ↗

Dayton, TN

Private nonprofit · Directory 2025

TN · Four-year

O'More College of Design ↗

Franklin, TN

Private nonprofit · Directory 2017

OK · Four-year

Oral Roberts University ↗

Tulsa, OK

Private nonprofit · Directory 2025

OR · Four-year

Oregon College of Art and Craft ↗

Portland, OR

Private nonprofit · Directory 2018

OR · Four-year

Oregon College of Oriental Medicine ↗

Portland, OR

Private nonprofit · Directory 2024

OR · Four-year

Oregon Health & Science University ↗

Portland, OR

Public · Directory 2025

OR · Four-year

Oregon Institute of Technology ↗

Klamath Falls, OR

Public · Directory 2025

OR · Four-year

Oregon State University ↗

Corvallis, OR

Public · Directory 2025

OR · Four-year

Oregon State University-Cascades Campus ↗

Bend, OR

Public · Directory 2025

OR · Four-year

Oregon University System ↗

Eugene, OR

Public · Directory 2014

IA · Four-year

Orion Technical College ↗

Davenport, IA

Private for-profit · Directory 2025

CA · Four-year

Otis College of Art and Design ↗

Los Angeles, CA

Private nonprofit · Directory 2025

IN · Four-year

Ottawa University-Jeffersonville ↗

Jeffersonville, IN

Private nonprofit · Directory 2018

KS · Four-year

Ottawa University-Kansas City ↗

Overland Park, KS

Private nonprofit · Directory 2025

WI · Four-year

Ottawa University-Milwaukee ↗

Brookfield, WI

Private nonprofit · Directory 2025

KS · Four-year

Ottawa University-Online ↗

Overland Park, KS

Private nonprofit · Directory 2025