The student population at Ohio Northern University is 3,140 (2,706 undergraduate and 434 graduate students) . The number of students has decreased by 98 over the past decade.
The percentage of undergraduate students at ONU is 86.18% which is increased by 305 over last 10 years. The graduate student population decreased by 403 and it has been decreasing.
The female to male ratio is 0.89 to 1 which means that male students enrolled slightly more than female students.
50 students enrolled in online degree program exclusively and the number of online students has increased by 105.93% since 2015.
The average student population over the last 11 years is 3,056 where 3,140 students are attending the school for the academic year 2024-2025.
86.18% of total students is undergraduate students and 13.82% students is graduate students. The number of undergraduate students has increased by 305 and the graduate enrollment has decreased by 403 over past 10 years.
The female to male ratio is 0.89 to 1 and it means that there are slightly more male students enrolled in ONU than female students.
The following table and chart illustrate the changes in student population by gender at Ohio Northern University since 2015.
| Year | Total | Undergraduate | Graduate | ||||
|---|---|---|---|---|---|---|---|
| Total | Men | Women | Total | Men | Women | ||
| 2015-16 | 3,238 | 2,401 | 1,311 | 1,090 | 837 | 310 | 527 |
| 2016-17 | 3,108 -130 | 2,274 -127 | 1,261 -50 | 1,013 -77 | 834 -3 | 308 -2 | 526 -1 |
| 2017-18 | 3,088 -20 | 2,312 38 | 1,287 26 | 1,025 12 | 776 -58 | 289 -19 | 487 -39 |
| 2018-19 | 3,039 -49 | 2,297 -15 | 1,260 -27 | 1,037 12 | 742 -34 | 287 -2 | 455 -32 |
| 2019-20 | 2,958 -81 | 2,239 -58 | 1,199 -61 | 1,040 3 | 719 -23 | 291 4 | 428 -27 |
| 2020-21 | 2,817 -141 | 2,130 -109 | 1,178 -21 | 952 -88 | 687 -32 | 286 -5 | 401 -27 |
| 2021-22 | 3,116 299 | 2,426 296 | 1,346 168 | 1,080 128 | 690 3 | 267 -19 | 423 22 |
| 2022-23 | 3,015 -101 | 2,569 143 | 1,388 42 | 1,181 101 | 446 -244 | 177 -90 | 269 -154 |
| 2023-24 | 3,042 27 | 2,592 23 | 1,418 30 | 1,174 -7 | 450 4 | 181 4 | 269 |
| 2024-25 | 3,140 98 | 2,706 114 | 1,477 59 | 1,229 55 | 434 -16 | 188 7 | 246 -23 |
| Average | 3,056 | 2,395 | 1,313 | 1,082 | 662 | 258 | 403 |
The average number of Undergraduate students over the last 11 years is 2,395 where 2,706 students are attending the Undergraduate school for the academic year 2024-2025. The following table and chart illustrate the changes in Undergraduate enrollment by attending status and gender at Ohio Northern University since 2015.
| Year | Total | Full-time | Part-time | ||||
|---|---|---|---|---|---|---|---|
| Total | Men | Women | Total | Men | Women | ||
| 2015-16 | 2,401 | 2,143 | 1,184 | 959 | 258 | 127 | 131 |
| 2016-17 | 2,274 | 2,065 | 1,154 | 911 | 209 | 107 | 102 |
| 2017-18 | 2,312 | 2,092 | 1,166 | 926 | 220 | 121 | 99 |
| 2018-19 | 2,297 | 2,118 | 1,165 | 953 | 179 | 95 | 84 |
| 2019-20 | 2,239 | 2,095 | 1,126 | 969 | 144 | 73 | 71 |
| 2020-21 | 2,130 | 2,037 | 1,135 | 902 | 93 | 43 | 50 |
| 2021-22 | 2,426 | 2,158 | 1,208 | 950 | 268 | 138 | 130 |
| 2022-23 | 2,569 | 2,368 | 1,289 | 1,079 | 201 | 99 | 102 |
| 2023-24 | 2,592 | 2,348 | 1,295 | 1,053 | 244 | 123 | 121 |
| 2024-25 | 2,706 | 2,465 | 1,347 | 1,118 | 241 | 130 | 111 |
| Average | 2,395 | 2,395 | 1,207 | 982 | 2,395 | 106 | 100 |
The average number of Graduate students over the last 11 years is 662 where 434 students are attending the Graduate school for the academic year 2024-2025. The following table and chart illustrate the changes in Graduate enrollment by attending status and gender at Ohio Northern University since 2015.
| Year | Total | Full-time | Part-time | ||||
|---|---|---|---|---|---|---|---|
| Total | Men | Women | Total | Men | Women | ||
| 2015-16 | 837 | 831 | 309 | 522 | 6 | 1 | 5 |
| 2016-17 | 834 | 823 | 304 | 519 | 11 | 4 | 7 |
| 2017-18 | 776 | 745 | 281 | 464 | 31 | 8 | 23 |
| 2018-19 | 742 | 728 | 278 | 450 | 14 | 9 | 5 |
| 2019-20 | 719 | 708 | 283 | 425 | 11 | 8 | 3 |
| 2020-21 | 687 | 681 | 281 | 400 | 6 | 5 | 1 |
| 2021-22 | 690 | 688 | 267 | 421 | 2 | 0 | 2 |
| 2022-23 | 446 | 439 | 175 | 264 | 7 | 2 | 5 |
| 2023-24 | 450 | 439 | 174 | 265 | 11 | 7 | 4 |
| 2024-25 | 434 | 380 | 164 | 216 | 54 | 24 | 30 |
| Average | 662 | 662 | 252 | 395 | 662 | 7 | 9 |
The percentage of white students is 77.17%. The percentage was 81.38% 10 years ago and ONU still has a high percentage of white students. 1.82% of enrolled students is Asian and 3.03% is black students. Hispanic students comprise 3.89% of the student body.
Over the past 10 years, the racial composition has shifted. The percentage of white students decreased from 81.38% to 77.17%. Asian enrollment grew from 1.54% to 1.82%. Black student enrollment decreased from 3.30% to 3.03%. Hispanic student representation expanded from 1.11% to 3.89%.
The overall racial diversity, measured by the Census Bureau Diversity Index, is 0.3998 which indicates that somewhat diverse. This increased from 0.3355 a decade ago, suggesting that racial diversity has improved.
The following table and chart illustrate the student population trends by race/ethnicity at Ohio Northern University over the past 11 years (2015-2025).
| Year | American Indian or Native American | Asian | Black | Hispanic | Native Hawaiian or Other Pacific Islander | White | Two or More Races |
|---|---|---|---|---|---|---|---|
| 2015-16 | 7 | 50 | 107 | 36 | 1 | 2,635 | 95 |
| 2016-17 | 7 | 56 | 115 | 40 | 1 | 2,445 | 84 |
| 2017-18 | 5 | 60 | 118 | 35 | 2 | 2,365 | 87 |
| 2018-19 | 5 | 59 | 109 | 30 | 2 | 2,341 | 82 |
| 2019-20 | 4 | 69 | 104 | 26 | 4 | 2,223 | 98 |
| 2020-21 | 5 | 67 | 99 | 22 | 5 | 2,143 | 112 |
| 2021-22 | 6 | 67 | 106 | 16 | 7 | 2,455 | 128 |
| 2022-23 | 6 | 58 | 95 | 13 | 8 | 2,370 | 141 |
| 2023-24 | 5 | 70 | 92 | 115 | 78 | 2,336 | 136 |
| 2024-25 | 2 | 57 | 95 | 122 | 4 | 2,423 | 141 |
| Average | 5 | 61 | 104 | 46 | 11 | 2,374 | 110 |
50 students are enrolled in online degree programs exclusively for the academic year 2024-2025, which is 2% of total students. The number of online students has increased 105.93% since 2015. The following table and chart illustrate the changes in the online student population by enrolled type at Ohio Northern University from 2015 to 2025.
| Year | Total Enrollment | Online Completely | Enrolled in Some Online Courses | Not Enrolled in Online Courses |
|---|---|---|---|---|
| 2015-16 | 3,238 | 0 | 135 | 3,103 |
| 2016-17 | 3,108 | 0 | 101 | 3,007 |
| 2017-18 | 3,088 | 0 | 121 | 2,967 |
| 2018-19 | 3,039 | 0 | 36 | 3,003 |
| 2019-20 | 2,958 | 0 | 144 | 2,814 |
| 2020-21 | 2,817 | 1 | 789 | 2,027 |
| 2021-22 | 3,116 | 0 | 399 | 2,717 |
| 2022-23 | 3,015 | 2 | 339 | 2,674 |
| 2023-24 | 3,042 | 1 | 314 | 2,727 |
| 2024-25 | 3,140 | 50 | 278 | 2,812 |
| Average | 3,056 | 5 | 266 | 2,785 |
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