| Year(*) | Enrollment |
|---|---|
| 1859-60 | 80 |
| 1860-61 | 90 |
| 1861-62 | (**) |
| 1862-63 | (**) |
| 1863-64 | (**) |
| 1864-65 | (**) |
| 1865-66 | (**) |
| 1866-67 | (m) |
| 1867-68 | 85 |
| 1868-69 | (m) |
| 1869-70 | 90 |
| 1870-71 | 83 |
| 1871-72 | 103 |
| 1872-73 | 101 |
| 1873-74 | 108 |
| 1874-75 | 88 |
| 1875-76 | 104 |
| 1876-77 | 108 |
| 1877-78 | 238 |
| 1878-79 | 279 |
| 1879-80 | 229 |
| 1880-81 | 182 |
| 1881-82 | 125 |
| 1882-83 | 130 |
| 1883-84 | 126 |
| 1884-85 | 120 |
| 1885-86 | 145 |
| 1886-87 | 185 |
| 1887-88 | 171 |
| 1888-89 | 209 |
| 1889-90 | 254 |
| 1890-91 | 284 |
| 1891-92 | 255 |
| 1892-93 | 243 |
| 1893-94 | 256 |
| 1894-95 | 271 |
| 1895-96 | 297 |
| 1896-97 | 361 |
| 1897-98 | 342 |
| 1898-99 | 259 |
| 1899-00 | 384 |
| 1900-01 | 412 |
| 1901-02 | 406 |
| 1902-03 | 434 |
| 1903-04 | 480 |
| 1904-05 | 515 |
| 1905-06 | 568 |
| 1906-07 | 600 |
| 1907-08 | 616 |
| 1908-09 | 701 |
| 1909-10 | 760 |
| 1910-11 | 737 |
| 1911-12 | 750 |
| 1912-13 | 731 |
| 1913-14 | 754 |
| 1914-15 | 702 |
| 1915-16 | 810 |
| 1916-17 | 877 |
| 1917-18 | 728 |
| 1918-19 | 1,180 |
| 1919-20 | 1,177 |
| 1920-21 | 1,075 |
| 1921-22 | 1,179 |
| 1922-23 | 1,335 |
| 1923-24 | 1,370 |
| 1924-25 | 1,433 |
| 1925-26 | 1,445 |
| 1926-27 | 1,605 |
| 1927-28 | 1,595 |
| 1928-29 | 1,640 |
| 1929-30 | 1,687 |
| 1930-31 | 1,730 |
| 1931-32 | 1,877 |
| 1932-33 | 1,578 |
| 1933-34 | 1,510 |
| 1934-35 | 1,728 |
| 1935-36 | 2,150 |
| 1936-37 | 2,403 |
| 1937-38 | 2,723 |
| 1938-39 | 2,988 |
| 1939-40 | 3,475 |
| 1940-41 | 3,728 |
| 1941-42 | 3,752 |
| 1942-43 | 3,640 |
| 1943-44 | 1,710 |
| 1944-45 | 1,766 |
| 1945-46 | 2,608 |
| 1946-47 | 6,290 |
| 1947-48 | 7,235 |
| 1948-49 | 7,660 |
| 1949-50 | 7,284 |
| 1950-51 | 6,641 |
| 1951-52 | 5,757 |
| 1952-53 | 6,421 |
| 1953-54 | 6,747 |
| 1954-55 | 7,059 |
| 1955-56 | 7,913 |
| 1956-57 | 8,410 |
| 1957-58 | 8,076 |
| 1958-59 | 8,519 |
| 1959-60 | 8,547 |
| 1960-61 | 8,829 |
| 1961-62 | 9,270 |
| 1962-63 | 8,954 |
| 1963-64 | 9,844 |
| 1964-65 | 10,785 |
| 1965-66 | 11,903 |
| 1966-67 | 12,643 |
| 1967-68 | 13,236 |
| 1968-69 | 13,877 |
| 1969-70 | 14,525 |
| 1970-71 | 14,229 |
| 1971-72 | 14,503 |
| 1972-73 | 14,528 |
| 1973-74 | 15,705 |
| 1974-75 | 16,013 |
| 1975-76 | 17,044 |
| 1976-77 | 17,523 |
| 1977-78 | 17,977 |
| 1978-79 | 18,105 |
| 1979-80 | 18,329 |
| 1980-81 | 18,603 |
| 1981-82 | 18,677 |
| 1982-83 | 18,401 |
| 1983-84 | 18,426 |
| 1984-85 | 18,888 |
| 1985-86 | 19,056 |
| 1986-87 | 19,363 |
| 1987-88 | 19,502 |
| 1988-89 | 20,553 |
| 1989-90 | 21,701 |
| 1990-91 | 21,537 |
| 1991-92 | 21,836 |
| 1992-93 | 21,551 |
| 1993-94 | 21,363 |
| 1994-95 | 21,226 |
| 1995-96 | 22,122 |
| 1996-97 | 21,778 |
| 1997-98 | 21,505 |
| 1998-99 | 21,775 |
| 1999-00 | 22,120 |
| 2000-01 | 21,860 |
| 2001-02 | 22,469 |
| 2002-03 | 23,276 |
| 2003-04 | 23,152 |
| 2004-05 | 22,928 |
| 2005-06 | 23,333 |
| 2006-07 | 23,547 |
| 2007-08 | 24,137 |
| 2008-09 | 24,530 |
| 2009-10 | 24,602 |
| 2010-11 | 25,078 |
| 2011-12 | 25,469 |
| 2012-13 | 25,134 |
| 2013-14 | 24,864 |
| 2014-15 | 25,912 |
| 2015-16 | 27,287 |
| 2016-17 | 28,290 |
| 2017-18 | 29,776 |
| 2018-19 | 30,440 |
| 2019-20 | 30,460 |
| 2020-21 | 30,737 |
| 2021-22 | 31,526 |
| 2022-23 | 31,764 |
| 2023-24 | 33,015 |
* Prior to 1942-43 figures represent enrollment for the regular session only.
** Closed during Civil War
(m) Missing
