| 1901 | 128 | Northeastern University |  |  | 123 | 334 | 283 |
| 1902 | 450 | Northern Arizona University | | | 274 | 339 | 931 |
| 1903 | 6403 | Northern Essex Community College | | | 2609 | 5963 | 6683 |
| 1904 | 484 | Northern Illinois University | | | 320 | 666 | 856 |
| 1905 | 2727 | Northern Kentucky University | | | 1072 | 5963 | 3134 |
| 1906 | 11394 | Northern Maine Community College | | | 9381 | 5963 | 6683 |
| 1907 | 2356 | Northern Michigan University | | | 1202 | 2443 | 4115 |
| 1908 | 7906 | Northern New Mexico Community College | | | 7960 | 5963 | 6245 |
| 1909 | 9771 | Northern Oklahoma College | | | 7304 | 5963 | 6683 |
| 1910 | 5985 | Northern State University | | | 1879 | 5963 | 6683 |
| 1911 | 7877 | Northern Vermont University | | | 4808 | 5963 | 6683 |
| 1912 | 5475 | Northern Virginia Community College | | | 980 | 5963 | 6683 |
| 1913 | 6567 | Northland College | | | 2862 | 5963 | 6683 |
| 1914 | 6816 | Northland Community and Technical College | | | 3266 | 5963 | 6683 |
| 1915 | 9703 | Northland Pioneer College | | | 7220 | 5963 | 6683 |
| 1916 | 15883 | Northpoint Bible College (Zion Bible College) | | | 14918 | 5963 | 6683 |
| 1917 | 12836 | Northshore Technical Community College (Louisiana Technical College Sullivan) | | | 11213 | 5963 | 6683 |
| 1918 | 6924 | Northwest Arkansas Community College | | | 3450 | 5963 | 6683 |
| 1919 | 9259 | Northwest Career College | | | 6635 | 5963 | 6683 |
| 1920 | 16934 | Northwest College of Art & Design | | | 16159 | 5963 | 6683 |
| 1921 | 8237 | Northwest College Wyoming | | | 5279 | 5963 | 6683 |
| 1922 | 9538 | Northwest Florida State College (Okaloosa Walton College) | | | 7025 | 5963 | 6683 |
| 1923 | 9779 | Northwest Indian College | | | 7320 | 5963 | 6683 |
| 1924 | 11632 | Northwest Iowa Community College | | | 9689 | 5963 | 6683 |
| 1925 | 13680 | Northwest Kansas Technical College | | | 12238 | 5963 | 6683 |
| 1926 | 7153 | Northwest Mississippi Community College | | | 3788 | 5963 | 6683 |
| 1927 | 5637 | Northwest Missouri State University | | | 1895 | 5543 | 6683 |
| 1928 | 5890 | Northwest Nazarene University | | | 1691 | 5963 | 6683 |
| 1929 | 11307 | Northwest Shoals Community College | | | 9277 | 5963 | 6683 |
| 1930 | 11394 | Northwest State Community College | | | 9381 | 5963 | 6683 |
| 1931 | 10334 | Northwest Technical College | | | 8062 | 5963 | 6683 |
| 1932 | 7830 | Northwest Technical Institute | | | 4750 | 5963 | 6683 |
| 1933 | 6789 | Northwest University | | | 3211 | 5963 | 6683 |
| 1934 | 12369 | Northwestern College Chicago | | | 10617 | 5963 | 6683 |
| 1935 | 6430 | Northwestern College Iowa | | | 2650 | 5963 | 6683 |
| 1936 | 10471 | Northwestern Connecticut Community College | | | 8238 | 5963 | 6683 |
| 1937 | 8450 | Northwestern Health Sciences University | | | 5571 | 5963 | 6683 |
| 1938 | 6307 | Northwestern Michigan College | | | 2445 | 5963 | 6683 |
| 1939 | 9266 | Northwestern Oklahoma State University | | | 6650 | 5963 | 6683 |
| 1940 | 10643 | Northwestern Polytechnic University | | | 8446 | 5963 | 6683 |
| 1941 | 5777 | Northwestern State University of Louisiana | | | 2716 | 5251 | 6683 |
| 1942 | 140 | Northwestern University | | | 29 | 5963 | 31 |
| 1943 | 6109 | Northwood University | | | 2092 | 5963 | 6683 |
| 1944 | 9831 | Norwalk Community College | | | 7391 | 5963 | 6683 |
| 1945 | 5396 | Norwich University | | | 1734 | 5090 | 6683 |
| 1946 | 13892 | NOSSI College of Art | | | 12488 | 5963 | 6683 |
| 1947 | 8104 | Notre Dame College | | | 5116 | 5963 | 6683 |
| 1948 | 8089 | Notre Dame de Namur University | | | 5086 | 5963 | 6683 |
| 1949 | 7277 | Notre Dame of Maryland University | | | 3984 | 5963 | 6683 |
| 1950 | 14846 | Notre Dame Seminary Graduate School of Theology | | | 13677 | 5963 | 6683 |
| 1951 | 739 | Nova Southeastern University | | | 386 | 808 | 1465 |
| 1952 | 15804 | Nueta Hidatsa Sahnish College (Fort Berthold Community College) | | | 14827 | 5963 | 6683 |
| 1953 | 12190 | Nunez Community College | | | 10409 | 5963 | 6683 |
| 1954 | 8549 | Nyack College | | | 5729 | 5963 | 6683 |
| 1955 | 15973 | NYC Acting School for TV Film and Theater | | | 15027 | 5963 | 6683 |
| 1956 | 15075 | O'More College of Design | | | 13953 | 5963 | 6683 |
| 1957 | 12045 | Oak Hills Christian College | | | 10218 | 5963 | 6683 |
| 1958 | 7175 | Oakland City University | | | 3829 | 5963 | 6683 |
| 1959 | 8336 | Oakland Community College | | | 5419 | 5963 | 6683 |
| 1960 | 716 | Oakland University | | | 649 | 584 | 1146 |
| 1961 | 5752 | Oakton Community College | | | 1430 | 5963 | 6683 |
| 1962 | 7725 | Oakwood University | | | 4611 | 5963 | 6683 |
| 1963 | 1301 | Oberlin College | | | 493 | 1786 | 2647 |
| 1964 | 11956 | Oblate School of Theology | | | 10111 | 5963 | 6683 |
| 1965 | 1673 | Occidental College | | | 719 | 2094 | 3246 |
| 1966 | 8375 | Ocean County College | | | 5469 | 5963 | 6683 |
| 1967 | 13196 | Oconee Fall Line Technical College (Sandersville + Heart of Georgia) | | | 11631 | 5963 | 6683 |
| 1968 | 6888 | Odessa College | | | 3404 | 5963 | 6683 |
| 1969 | 13866 | Ogden Weber Applied Technology College | | | 12452 | 5963 | 6683 |
| 1970 | 11835 | Ogeechee Technical College | | | 9946 | 5963 | 6683 |
| 1971 | 6640 | Oglala Lakota College | | | 2995 | 5963 | 6683 |
| 1972 | 6869 | Oglethorpe University | | | 3376 | 5963 | 6683 |
| 1973 | 13299 | Ohio Business College | | | 11756 | 5963 | 6683 |
| 1974 | 9070 | Ohio Christian University (Circleville Bible College) | | | 6407 | 5963 | 6683 |
| 1975 | 8533 | Ohio Dominican University | | | 5713 | 5963 | 6683 |
| 1976 | 3445 | Ohio Northern University | | | 1750 | 5963 | 3959 |
| 1977 | 11 | Ohio State University | | | 43 | 26 | 42 |
| 1978 | 12124 | Ohio Technical College | | | 10312 | 5963 | 6683 |
| 1979 | 477 | Ohio University | | | 358 | 440 | 868 |
| 1980 | 17471 | Ohio Valley College of Technology | | | 16772 | 5963 | 6683 |
| 1981 | 11085 | Ohio Valley University | | | 8993 | 5963 | 6683 |
| 1982 | 3753 | Ohio Wesleyan University | | | 1246 | 5543 | 5073 |
| 1983 | 6518 | Ohlone College | | | 2786 | 5963 | 6683 |
| 1984 | 7674 | Oklahoma Baptist University | | | 4537 | 5963 | 6683 |
| 1985 | 7296 | Oklahoma Christian University | | | 4003 | 5963 | 6683 |
| 1986 | 7436 | Oklahoma City Community College | | | 4230 | 5963 | 6683 |
| 1987 | 4842 | Oklahoma City University | | | 2842 | 5963 | 5442 |
| 1988 | 6931 | Oklahoma Panhandle State University | | | 3459 | 5963 | 6683 |
| 1989 | 784 | Oklahoma State University Stillwater | | | 203 | 5963 | 597 |
| 1990 | 8237 | Oklahoma Wesleyan University | | | 5273 | 5963 | 6683 |
| 1991 | 354 | Old Dominion University | | | 182 | 347 | 829 |
| 1992 | 6954 | Olivet College | | | 3482 | 5963 | 6683 |
| 1993 | 5723 | Olivet Nazarene University | | | 1390 | 5963 | 6683 |
| 1994 | 6811 | Olympic College | | | 3264 | 5963 | 6683 |
| 1995 | 5693 | Oral Roberts University | | | 2827 | 5963 | 6245 |
| 1996 | 6078 | Orange Coast College | | | 2037 | 5963 | 6683 |
| 1997 | 10912 | Orangeburg Calhoun Technical College | | | 8792 | 5963 | 6683 |
| 1998 | 7840 | Oregon Coast Community College | | | 4764 | 5963 | 6683 |
| 1999 | 10317 | Oregon College of Art & Craft | | | 8027 | 5963 | 6683 |
| 2000 | 12299 | Oregon College of Oriental Medicine | | | 10530 | 5963 | 6683 |
