Compiled from official source data by PlainSchools.
5 public K-12 schools in Port Isabel from NCES Common Core of Data: enrollment, grade span, demographics, and Civil Rights Data Collection statistics for every active campus.
According to NCES CCD 2024-25, Port Isabel has more public-school enrollment than 9% of the 4,487 US cities in this directory. Port Isabel's 5 listed schools all sit inside one district, creating a compact governance structure with one budget, board, and reporting chain. That makes citywide comparisons cleaner than in places split across several districts, but it does not make the campuses interchangeable: elementary, middle, and high-school staffing needs differ. The ranked list is best read as variation inside one system rather than competition among separate local authorities.
Combined-grade campuses shape the local portfolio
3 of Port Isabel's 5 listed schools use NCES's combined or “other” grade-level classification. Citywide averages therefore blend campuses serving unusually broad or nonstandard grade spans with conventional elementary, middle, and high schools. Grade configuration is a first-order comparison here, not a minor label.
A small portfolio contains radically different campus scales
Port Isabel lists only 5 schools, yet reported enrollment runs from 3 to 585 students, a 195-fold range. In a portfolio this compact, the smallest record may be a specialized or nonstandard setting rather than a miniature version of the largest campus. That distinction affects how ratios and program fields should be read. Compare similarly configured grade levels first; combining the extremes into one city average conceals more than it explains.
City enrollment
Top 91%
School count
Top 99%
Resource Index average
55th percentile
Teacher staffing
74th percentile
Port Isabel H S accounts for 32.8% of all Port Isabel public-school enrollment
That dominant concentration means Port Isabel-wide averages can mask substantial variation outside the largest entity. Grade level: Combined. The share measures enrollment concentration only; it does not establish how districts allocate programs, capital, or staff. Enrollment-weighted aggregates give this entity more weight than any smaller peer, while an unweighted entity average treats every record equally.
Port Isabel school enrollment varies 195× across entities
Port Isabel school enrollment ranges from 3 students (lowest) to 585 students (highest), a spread of 582 students. That ratio is an extreme outlier spread — among the widest gaps observed anywhere in this dataset. Per-school staffing and program breadth can differ sharply at opposite ends of that enrollment range, so the city average should not be treated as a typical campus.
The reported share is at least 75%, indicating a high concentration of measured economic need. Title I operates under the Every Student Succeeds Act (ESSA, 2015), but its statutory allocation uses additional LEA-level counts and rules not represented by this average. This percentage is an economic-need context measure; it does not establish a Title I award, show dollars received, or describe how funds are distributed among campuses.
Port Isabel operates one school district — a single-district system
Port Isabel's listed schools share one district boundary, budget authority, and reporting chain. That makes citywide and districtwide governance easier to compare, but it does not make individual campuses uniform: grade configuration, staffing, programs, and student need can still vary materially within the same school district.
Port Isabel student-teacher ratio is 13.4:1 — low (typically associated with smaller schools or per-school staffing investment that often correlates with stronger per-student supports)
student-teacher ratio is the simplest comparative metric but it does not capture the full picture: the ratio counts FTE classroom teachers against total enrollment, push-in specialists, English-language aides, special-education co-teachers, and counselors are not included in most reporting Lower values often correlate with smaller scale and population characteristics rather than higher resource budgets per se.
Most racially and ethnically mixed schools in Port Isabel
Ranked by the Simpson student-body diversity index (0-100) from NCES race and ethnicity data, where higher means a more evenly mixed student body. It measures mix, not quality.
What do families ask about schools in Port Isabel?
Which Port Isabel school has the highest Resource Investment Index? ▼
Port Isabel J H has the highest Resource Investment Index among the Port Isabel schools in this federal-data comparison at 48/100. The index summarizes reported staffing, counseling, gifted-program, and attendance inputs; it is not an academic rating.
How many schools are in Port Isabel, TX? ▼
Port Isabel has 5 public schools with a total enrollment of 1,786 students. Average student-teacher ratio: 13.4:1.
Data from NCES Common Core of Data (CCD) 2024-25 and Civil Rights Data Collection (CRDC) 2021-22. The Resource Investment Index uses reported student-teacher ratio,
counselor access, gifted programs, and attendance; it is not an academic rating. Cities must include at least five schools to be listed. This public-data comparison is for informational purposes:
verify current enrollment, attendance boundaries, and programs with the school district before acting. See the guide to understanding NCES data.
