Slack El, Lufkin TX - Test Scores & Data

Original Research by School Decision on Slack El

Slack Elementary is a school serving grades 2 through 5 in Lufkin, part of the Lufkin Independent School District in Angelina County. The student body is demographically diverse, with a substantial majority identified as Hispanic, along with meaningful populations of white and Black students. A large share of the student body qualifies for free or reduced-price lunch, indicating that economic need is considerable.

The school's testing results show mixed performance across the core subjects. In fourth-grade English language arts, roughly half of students met or exceeded proficiency on the Texas assessment. Fourth-grade math tells a different story: about one-third of students achieved proficiency. Third-grade results on the Spanish-language assessment were quite low in both math and English language arts. Fifth-grade testing numbers are too small to report reliably, as only a handful of students took those assessments in Spanish.

When looking at proficiency thresholds more broadly, the school shows roughly two-thirds of students approaching grade-level proficiency in math overall, though only about a third actually met the standard. English language arts showed stronger results at this threshold, with about three-quarters approaching and nearly half meeting. The proportion of students demonstrating mastery across subjects is small.

Compared to other districts in Angelina County, Slack Elementary's overall proficiency index places it in the bottom quartile among the county's schools. A parent may want to look into this further with the school to understand whether there are specific instructional strategies in place to close proficiency gaps, what support systems exist for students not yet at grade level, and how the school addresses the learning needs of its multilingual population.

The broader Lufkin ISD context includes recent positive momentum. The district improved its state accountability rating in 2025, and voters recently approved bond funding for significant facility improvements across the system, including renovations to Lufkin High School, expanded career and technical education space, a new stadium, safety upgrades, and seat-belt-equipped buses. These investments suggest the district is investing in its infrastructure and looking ahead. The district did raise its property tax rate for the 2024-25 fiscal year, a change that directly affects homeowners' tax bills.

Slack Elementary's location in Lufkin places it in a community with housing values and rental costs in the moderate range for Texas, making it accessible to families at various income levels, though the school's enrollment patterns reflect that many residents face economic constraints.

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Academic performance

How students perform on state tests, by grade, set against the district.

Math

Grade 317%

School 17% · District 14% · ▲ 3 pts above district

▼ 23 pts below state median · ▼ 12 pts below county median

Grade 437%

School 37% · District 18% · ▲ 19 pts above district

▼ 4 pts below state median · ▲ 8 pts above county median

English language arts

Grade 317%

School 17% · District 38% · ▼ 21 pts below district

▼ 29 pts below state median · ▼ 19 pts below county median

Grade 446%

School 46% · District 39% · ▲ 7 pts above district

▼ 3 pts below state median · ▲ 6 pts above county median

This schoolLUFKIN ISD, same grade

Graduation rate (ACGR) reflects the federally published Adjusted Cohort Graduation Rate for the most recent year available. We refresh this data annually at the close of each academic year in June. The federal source publishes a banded rate (for example, "90-94%") instead of an exact number for cohorts small enough to risk identifying individual students. The state distribution chart, where shown, plots every school in the state with a published rate or band; schools whose rate is federally suppressed are excluded. Where the federal source publishes a band rather than an exact rate, the school is placed within its band using a stable, ID-derived offset, so its position is consistent across visits.

Proficiency by household income

English language arts

Grade 4Lower-income10%Higher-income63%53 pp gap

Mathematics

Grade 4Lower-income35%Higher-income0%35 pp gap