| 1901 | 127 | Northeastern University |  |  | 123 | 333 | 283 |
| 1902 | 450 | Northern Arizona University | | | 274 | 338 | 930 |
| 1903 | 6393 | Northern Essex Community College | | | 2609 | 5963 | 6658 |
| 1904 | 484 | Northern Illinois University | | | 320 | 665 | 855 |
| 1905 | 2724 | Northern Kentucky University | | | 1072 | 5963 | 3124 |
| 1906 | 11388 | Northern Maine Community College | | | 9381 | 5963 | 6658 |
| 1907 | 2354 | Northern Michigan University | | | 1202 | 2442 | 4101 |
| 1908 | 7896 | Northern New Mexico Community College | | | 7960 | 5963 | 6222 |
| 1909 | 9761 | Northern Oklahoma College | | | 7304 | 5963 | 6658 |
| 1910 | 5971 | Northern State University | | | 1879 | 5963 | 6658 |
| 1911 | 7867 | Northern Vermont University | | | 4808 | 5963 | 6658 |
| 1912 | 5460 | Northern Virginia Community College | | | 980 | 5963 | 6658 |
| 1913 | 6558 | Northland College | | | 2862 | 5963 | 6658 |
| 1914 | 6805 | Northland Community and Technical College | | | 3266 | 5963 | 6658 |
| 1915 | 9693 | Northland Pioneer College | | | 7220 | 5963 | 6658 |
| 1916 | 15878 | Northpoint Bible College (Zion Bible College) | | | 14920 | 5963 | 6658 |
| 1917 | 12831 | Northshore Technical Community College (Louisiana Technical College Sullivan) | | | 11214 | 5963 | 6658 |
| 1918 | 6913 | Northwest Arkansas Community College | | | 3450 | 5963 | 6658 |
| 1919 | 9249 | Northwest Career College | | | 6635 | 5963 | 6658 |
| 1920 | 16930 | Northwest College of Art & Design | | | 16161 | 5963 | 6658 |
| 1921 | 8228 | Northwest College Wyoming | | | 5279 | 5963 | 6658 |
| 1922 | 9528 | Northwest Florida State College (Okaloosa Walton College) | | | 7025 | 5963 | 6658 |
| 1923 | 9769 | Northwest Indian College | | | 7320 | 5963 | 6658 |
| 1924 | 11626 | Northwest Iowa Community College | | | 9689 | 5963 | 6658 |
| 1925 | 13676 | Northwest Kansas Technical College | | | 12239 | 5963 | 6658 |
| 1926 | 7142 | Northwest Mississippi Community College | | | 3788 | 5963 | 6658 |
| 1927 | 5622 | Northwest Missouri State University | | | 1895 | 5543 | 6658 |
| 1928 | 5877 | Northwest Nazarene University | | | 1691 | 5963 | 6658 |
| 1929 | 11301 | Northwest Shoals Community College | | | 9277 | 5963 | 6658 |
| 1930 | 11388 | Northwest State Community College | | | 9381 | 5963 | 6658 |
| 1931 | 10325 | Northwest Technical College | | | 8062 | 5963 | 6658 |
| 1932 | 7820 | Northwest Technical Institute | | | 4750 | 5963 | 6658 |
| 1933 | 6778 | Northwest University | | | 3211 | 5963 | 6658 |
| 1934 | 12363 | Northwestern College Chicago | | | 10618 | 5963 | 6658 |
| 1935 | 6420 | Northwestern College Iowa | | | 2650 | 5963 | 6658 |
| 1936 | 10462 | Northwestern Connecticut Community College | | | 8238 | 5963 | 6658 |
| 1937 | 8440 | Northwestern Health Sciences University | | | 5571 | 5963 | 6658 |
| 1938 | 6296 | Northwestern Michigan College | | | 2445 | 5963 | 6658 |
| 1939 | 9256 | Northwestern Oklahoma State University | | | 6650 | 5963 | 6658 |
| 1940 | 10634 | Northwestern Polytechnic University | | | 8446 | 5963 | 6658 |
| 1941 | 5764 | Northwestern State University of Louisiana | | | 2716 | 5250 | 6658 |
| 1942 | 139 | Northwestern University | | | 29 | 5963 | 31 |
| 1943 | 6095 | Northwood University | | | 2092 | 5963 | 6658 |
| 1944 | 9821 | Norwalk Community College | | | 7391 | 5963 | 6658 |
| 1945 | 5381 | Norwich University | | | 1734 | 5089 | 6658 |
| 1946 | 13888 | NOSSI College of Art | | | 12489 | 5963 | 6658 |
| 1947 | 8096 | Notre Dame College | | | 5116 | 5963 | 6658 |
| 1948 | 8081 | Notre Dame de Namur University | | | 5086 | 5963 | 6658 |
| 1949 | 7266 | Notre Dame of Maryland University | | | 3984 | 5963 | 6658 |
| 1950 | 14841 | Notre Dame Seminary Graduate School of Theology | | | 13679 | 5963 | 6658 |
| 1951 | 739 | Nova Southeastern University | | | 386 | 807 | 1463 |
| 1952 | 15799 | Nueta Hidatsa Sahnish College (Fort Berthold Community College) | | | 14829 | 5963 | 6658 |
| 1953 | 12184 | Nunez Community College | | | 10409 | 5963 | 6658 |
| 1954 | 8539 | Nyack College | | | 5729 | 5963 | 6658 |
| 1955 | 15968 | NYC Acting School for TV Film and Theater | | | 15029 | 5963 | 6658 |
| 1956 | 15070 | O'More College of Design | | | 13955 | 5963 | 6658 |
| 1957 | 12039 | Oak Hills Christian College | | | 10218 | 5963 | 6658 |
| 1958 | 7164 | Oakland City University | | | 3829 | 5963 | 6658 |
| 1959 | 8326 | Oakland Community College | | | 5419 | 5963 | 6658 |
| 1960 | 716 | Oakland University | | | 649 | 583 | 1145 |
| 1961 | 5738 | Oakton Community College | | | 1430 | 5963 | 6658 |
| 1962 | 7716 | Oakwood University | | | 4611 | 5963 | 6658 |
| 1963 | 1301 | Oberlin College | | | 493 | 1785 | 2638 |
| 1964 | 11950 | Oblate School of Theology | | | 10111 | 5963 | 6658 |
| 1965 | 1672 | Occidental College | | | 719 | 2093 | 3234 |
| 1966 | 8365 | Ocean County College | | | 5469 | 5963 | 6658 |
| 1967 | 13191 | Oconee Fall Line Technical College (Sandersville + Heart of Georgia) | | | 11632 | 5963 | 6658 |
| 1968 | 6877 | Odessa College | | | 3404 | 5963 | 6658 |
| 1969 | 13862 | Ogden Weber Applied Technology College | | | 12453 | 5963 | 6658 |
| 1970 | 11829 | Ogeechee Technical College | | | 9946 | 5963 | 6658 |
| 1971 | 6630 | Oglala Lakota College | | | 2995 | 5963 | 6658 |
| 1972 | 6858 | Oglethorpe University | | | 3376 | 5963 | 6658 |
| 1973 | 13295 | Ohio Business College | | | 11757 | 5963 | 6658 |
| 1974 | 9060 | Ohio Christian University (Circleville Bible College) | | | 6407 | 5963 | 6658 |
| 1975 | 8523 | Ohio Dominican University | | | 5713 | 5963 | 6658 |
| 1976 | 3437 | Ohio Northern University | | | 1750 | 5963 | 3947 |
| 1977 | 11 | Ohio State University | | | 43 | 25 | 42 |
| 1978 | 12118 | Ohio Technical College | | | 10312 | 5963 | 6658 |
| 1979 | 477 | Ohio University | | | 358 | 439 | 867 |
| 1980 | 17467 | Ohio Valley College of Technology | | | 16774 | 5963 | 6658 |
| 1981 | 11078 | Ohio Valley University | | | 8993 | 5963 | 6658 |
| 1982 | 3743 | Ohio Wesleyan University | | | 1246 | 5543 | 5054 |
| 1983 | 6509 | Ohlone College | | | 2786 | 5963 | 6658 |
| 1984 | 7665 | Oklahoma Baptist University | | | 4537 | 5963 | 6658 |
| 1985 | 7285 | Oklahoma Christian University | | | 4003 | 5963 | 6658 |
| 1986 | 7425 | Oklahoma City Community College | | | 4230 | 5963 | 6658 |
| 1987 | 4829 | Oklahoma City University | | | 2842 | 5963 | 5422 |
| 1988 | 6920 | Oklahoma Panhandle State University | | | 3459 | 5963 | 6658 |
| 1989 | 784 | Oklahoma State University Stillwater | | | 203 | 5963 | 597 |
| 1990 | 8228 | Oklahoma Wesleyan University | | | 5273 | 5963 | 6658 |
| 1991 | 354 | Old Dominion University | | | 182 | 346 | 828 |
| 1992 | 6943 | Olivet College | | | 3482 | 5963 | 6658 |
| 1993 | 5708 | Olivet Nazarene University | | | 1390 | 5963 | 6658 |
| 1994 | 6800 | Olympic College | | | 3264 | 5963 | 6658 |
| 1995 | 5678 | Oral Roberts University | | | 2827 | 5963 | 6222 |
| 1996 | 6064 | Orange Coast College | | | 2037 | 5963 | 6658 |
| 1997 | 10904 | Orangeburg Calhoun Technical College | | | 8792 | 5963 | 6658 |
| 1998 | 7830 | Oregon Coast Community College | | | 4764 | 5963 | 6658 |
| 1999 | 10308 | Oregon College of Art & Craft | | | 8027 | 5963 | 6658 |
| 2000 | 12293 | Oregon College of Oriental Medicine | | | 10530 | 5963 | 6658 |
