Old Union El
🇺🇸 Official data · 2025Southlake, Texas 76092 · Carroll ISD
#1 of 4,686 elementary schools in Texas
#65 of 50,301 nationally
About Old Union El
Old Union El is a public elementary located in Southlake, in the Carroll ISD school district of Texas, United States. It caters for Grades PK–4. In 2025 it enrolled 458 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 95.7 out of 100, placing it in the top 5% of elementary schools in United States and 1st of 4,686 ranked elementary schools in Texas. Its strongest component is math proficiency (100th percentile), and its weakest is students per teacher (80th percentile).
Other published figures: enrollment 458.
There are 12 schools in Southlake; Old Union El ranks 1st of 11 scored schools there.
Success Index (US) breakdown
Each component is a percentile against elementary schools across United States.
- Math proficiency (30%)97.5%
- Reading proficiency (30%)92%
- Community advantage (fewer free/reduced-price lunch) (25%)–
- Students per teacher (15%)12.1
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Old Union El by the official sources.
- Enrollment
- 458
- Students enrolled in the latest NCES directory year.
- Students per teacher
- 12.1
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 92%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 97.5%
- Share of tested students proficient or above (all students, all grades).
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Schools near Old Union El
Closest schools by straight-line distance, with their Success Index (US).
Eubanks Int
Southlake · Public middle · Grades 5–6
611 students · 1.5 km away
Robert H Rockenbaugh El
Southlake · Public elementary · Grades PK–4
494 students · 1.6 km away
George Dawson Middle
Southlake · Public middle · Grades 7–8
569 students · 1.6 km away
Grapevine H S
Grapevine · Public high · Grades 9–12
1,624 students · 1.7 km away
Cross Timbers Middle
Grapevine · Public middle · Grades 6–8
820 students · 1.8 km away
Timberline El
Grapevine · Public elementary · Grades PK–5
593 students · 2.1 km away
Glenhope El
Colleyville · Public elementary · Grades PK–5
567 students · 2.5 km away
Carroll Middle
Southlake · Public middle · Grades 7–8
713 students · 2.9 km away
Carroll H S
Southlake · Public other · Grades 9–10
1,357 students · 3.4 km away
Jack D Johnson El
Southlake · Public elementary · Grades K–4
614 students · 3.4 km away
Similar schools
Public elementary schools in Texas with a comparable Enrollment.
Wills El
Amarillo · Public elementary · Grades PK–5
458 students
Anderson-Shiro El
Anderson · Public elementary · Grades PK–5
458 students
Bells El
Bells · Public elementary · Grades PK–5
458 students
Walker Creek El
North Richland Hills · Public elementary · Grades PK–5
458 students
Brady El
Brady · Public elementary · Grades PK–5
458 students
Bridgeport Int
Bridgeport · Public elementary · Grades 3–5
458 students
Frequently asked questions
Is Old Union El a good school?
Old Union El has a Success Index (US) of 95.7 out of 100 (Top 5% of elementary schools in United States) and ranks #1 of 4,686 in Texas. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Old Union El rank in Texas?
Old Union El ranks #1 of 4,686 elementary schools in Texas and #65 of 50,301 nationally on the Success Index (US) (2025 data).
How many students attend Old Union El?
Old Union El had 458 students in 2025.
Is Old Union El a elementary school or a high school?
Old Union El is classified as a elementary covering Grades PK–4. It is a public school.
What other schools are near Old Union El?
There are 10 schools within 15 km of Old Union El; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.