Round Rock ISD had the highest enrollment among Williamson County districts, with 46,954 students during the 2024-25 school year, according to the Texas Education Agency.
Of all students enrolled in the 2024-25 school year, 51.6% were boys, and 48.4% were girls.
The most represented ethnicity among Round Rock ISD students was Hispanic, accounting for 32.4% of the student population.
Among the 11 districts in Williamson County, Leander ISD ranked second in enrollment numbers with 42,608 students, while Georgetown ISD enrolled 13,881 students and ranked third in the 2024-25 school year.
Round Rock ISD roughly covers schools within Williamson County with its main office in Round Rock.
In the previous school year, Round Rock ISD also had the largest number of students among Williamson County districts.
Texas has the nation’s second-largest K-12 public school system, serving about 5.5 million students with a student-to-teacher ratio of roughly 15:1.
About 42,103 teachers in Texas, or 12% of the state’s 352,234 teachers, did not hold an active teaching certificate during the 2024-25 school year, according to a report from the Texas Education Agency. The share of uncertified teachers has increased from 3.8% in the 2019-20 school year.
A 2026 study by WalletHub classified Texas as one of the least-educated states in the U.S., ranking it 41st out of 50 in educational quality and student outcomes.
| District | City (Main Office) | Total enrollment |
|---|---|---|
| Round Rock ISD | Round Rock | 46,954 |
| Leander ISD | Leander | 42,608 |
| Georgetown ISD | Georgetown | 13,881 |
| Hutto ISD | Hutto | 10,688 |
| Liberty Hill ISD | Liberty Hill | 9,836 |
| Jarrell ISD | Jarrell | 4,157 |
| Taylor ISD | Taylor | 2,930 |
| Florence ISD | Florence | 1,142 |
| Thrall ISD | Thrall | 873 |
| Granger ISD | Granger | 580 |
| Coupland ISD | COUPLAND | 323 |
Information in this article was obtained from the Texas Education Agency. The source data can be found here.
