Rosa Parks/millbrook El, Lancaster TX

Original Research by School Decision on Rosa Parks/millbrook El

Rosa Parks/Millbrook Elementary sits in Lancaster, a city positioned just south of Dallas along Interstate 35E, anchored by logistics, distribution, and manufacturing. The school serves grades pre-K through fifth, drawing from an enrollment of roughly four hundred students, the vast majority of whom qualify for free or reduced-price lunch. About four-fifths of the student body is Black, with smaller shares of Hispanic, multi-racial, and other students. State assessment data was available for third through fifth grades only.

In English language arts, fifth-grade performance stands out. Just under two-thirds of fifth graders reached proficiency or above on the state test, a noticeably stronger showing than third and fourth grades, where proficiency hovered in the upper thirties. For math, the trajectory climbs more gradually: third and fourth grades both fell in the low thirties, while fifth grade reached just over two-fifths. Science was assessed only in fifth grade, where proficiency was markedly lower, at less than one-fifth of students. Across all tested subjects and grade levels combined, the school's overall proficiency index places it above the midpoint among the district's peers in Dallas County.

The pattern across these results suggests uneven grounding in foundational skills, with stronger showing in reading at the upper-elementary level than in earlier grades. Fifth-grade English performance is a clear strength; math and science proficiency rates at that level fall considerably lower. A parent may want to look into how the school supports students in math and science, and what specific instruction in reading and language arts has moved fifth graders to outperform their younger peers.

The school is not a Title I magnet or charter school; it is a regular public elementary within Lancaster Independent School District. The district recently passed a voter-approved bond in May 2026 to fund facility improvements across all campuses, including roof replacements, HVAC upgrades, secure entry systems, and removal of portable buildings, all without raising the local property tax rate. The district has also built a track record with early-college and dual-credit pathways at the high school level, where students can earn associate degrees or substantial college credit before graduation. These moves signal investment in the school system's physical and academic infrastructure, though they center on middle and high school.

Housing in the Lancaster zip code runs somewhat below the state benchmark for Texas, with a median home value in the mid-two-hundred-thousands and median monthly rent in the mid-two-thousands. Mortgage affordability is within reach for families earning close to the national median income, and rental costs sit at roughly one-third of median household income. The broader economic climate carries moderate unemployment and a steady housing market.

Rosa Parks/Millbrook offers a straightforward neighborhood elementary experience in a working-class community with strong logistics connections. Its reading instruction at fifth grade is effective; families with elementary-age children should ask directly about math support and intervention structures, particularly for younger grades, to understand where additional academic help may be available.

See more original research from School Decision →

Academic performance

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

Math

Grade 328%

School 28% · District 26% · ▲ 2 pts above district

▼ 12 pts below state median · ▼ 7 pts below county median

Grade 430%

School 30% · District 0% · ▲ 30 pts above district

▼ 11 pts below state median · ▼ 7 pts below county median

Grade 541%

School 41% · District 38% · ▲ 3 pts above district

even with state median · ▲ 3 pts above county median

English language arts

Grade 338%

School 38% · District 24% · ▲ 14 pts above district

▼ 8 pts below state median · ▲ 1 pts above county median

Grade 439%

School 39% · District 14% · ▲ 25 pts above district

▼ 10 pts below state median · ▼ 7 pts below county median

Grade 567%

School 67% · District 18% · ▲ 49 pts above district

▲ 13 pts above state median · ▲ 17 pts above county median

Science

Grade 519%

School 19% · District 18% · ▲ 1 pts above district

▼ 4 pts below state median · even with county median

This schoolLANCASTER 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 3Lower-income33%Higher-income53%20 pp gap

Grade 4Lower-income31%Higher-income67%36 pp gap

Grade 5Lower-income61%Higher-income82%21 pp gap

Mathematics

Grade 3Lower-income24%Higher-income40%16 pp gap

Grade 4Lower-income29%Higher-income33%4 pp gap

Grade 5Lower-income39%Higher-income47%8 pp gap