MAMBRINO SCHOOL

Located at 3835 MAMBRINO HWY, in GRANBURY, Texas, MAMBRINO SCHOOL is a well-populated elementary-level community that hosts 799 students (grades pre-K through 5), one of the schools within GRANBURY ISD. Enrollment runs roughly 54% above the state mean of about 519.

MAMBRINO SCHOOL is one of 10 schools operated by GRANBURY ISD, a district that instructs 7,962 students overall.

For racial and ethnic makeup, MAMBRINO SCHOOL reports that the largest single group is White, at 73% of enrollment. The remainder comes out to 21% Hispanic, 4% multiracial. By comparison, Hood County as a whole is about 85% White, so the school skews noticeably less White than its surroundings.

Looking at school resources, MAMBRINO SCHOOL logs 50 full-time-equivalent teachers, putting the student-to-teacher ratio at about 16.0:1. That figure is higher than the state norm's 15.1:1 average. Roughly 46% of students at MAMBRINO SCHOOL qualify for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator.

On a residual basis (actual vs predicted given the student mix), MAMBRINO SCHOOL performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 53.9%, the actual is 51.3%, a residual of -2.6 points.

Around the school, the surrounding county (Hood County) records that the typical household earns roughly $88,160 per year, about 33% of the adult population holds a bachelor's degree or above, and the poverty rate sits near 6%. In all, Hood County runs 18 public schools (combined enrollment of about 9,530 students), of which MAMBRINO SCHOOL is one.

ACTON EL is the nearest neighboring public school, about 4.3 miles from this campus. 4 of the 8 nearest public schools sit inside a five-mile radius. Among the 5 schools in that immediate cluster with test data (this one included), MAMBRINO SCHOOL ranks 4th on composite proficiency, below the local average of 55.7%.

MAMBRINO SCHOOL operates from a low-density location.

Trend over the last 7 years. Over the past 7-year window, the student count increased 33%: 600 students in 2018 compared to 799 in 2025. The student-to-teacher ratio rose from 14.8:1 in 2018 to 16.0:1 today.

In the discussion threads here, members of the MAMBRINO SCHOOL community share and discuss pickup logistics, teacher feedback, and after-school programs. The community welcomes input from current and former families.