Recent movement
Overall score rose 4 points
86 to 90 2024-25 to 2025-26
See the full measureTraditional public school campus
Earl & Marthalu Dieterich MS
Ellis County · Region 10: Richardson · 1,007 students
Official school websiteSchool information and family resources
- Current score
- 90/1002025-26
- Change
- +4 ptssince 2021-22
- Score vs similar economic context
- +0.8 ptsvs 89.2 average · 828 rated schools serving a similar economic context
- Similar economic-disadvantage rate placement
- 417 of 828tied with 74 others
- Score vs region
- +7.8 ptsvs 82.2 average · 1,157 rated schools in Region 10: Richardson
- Region 10: Richardson placement
- 280 of 1,157tied with 56 others
- Score vs county
- +9.8 ptsvs 80.2 average · 64 rated schools in Ellis County
- Ellis County placement
- 8 of 64tied with 1 other
- Score vs similar-size group
- +8.3 ptsvs 81.7 average · 2,597 similarly sized rated schools
- Similar size placement
- 571 of 2,597tied with 128 others
- Score vs state
- +8.7 ptsvs 81.3 average · 7,646 rated Texas schools
- Texas placement
- 1,571 of 7,646tied with 341 others
A90
At a glance
Under TEA’s current rules, the available rating history is moving up; under the rules in force back then it scored 83 in 2021-22. The current score is above the 89.2 average for 828 rated schools serving a similar economic context.The current score is above the 82.2 average for 1,157 rated schools in Region 10: Richardson.The current score is above the 80.2 average for 64 rated schools in Ellis County.The current score is above the 81.7 average for 2,597 similarly sized rated schools.The current score is above the 81.3 average for 7,646 rated Texas schools.
Evidence worth noticing
Strengths and momentum
Recent domain gain
Closing the Gaps rose 9 points
82 to 91 2024-25 to 2025-26
- 91 is 4.3 points above the 86.7 average among 808 schools with a similar economic-disadvantage rate reporting this measure.
Recent movement
Overall score rose 4 points
86 to 90 2024-25 to 2025-26
- 90 is 7.8 points above the 82.2 average among 1,157 schools in Region 10: Richardson reporting this measure.
Recent domain gain
Closing the Gaps rose 9 points
82 to 91 2024-25 to 2025-26
- 91 is 11.6 points above the 79.4 average among 1,102 schools in Region 10: Richardson reporting this measure.
STAAR result
All Subjects above Region 10: Richardson averages at Meets and Masters
- Meets
- 62%vs 53.1% avg · +8.9 pts
- Masters
- 30%vs 26.1% avg · +3.9 pts
Among 1,110 schools in Region 10: Richardson reporting this measure.
See the full measureRecent movement
Overall score rose 4 points
86 to 90 2024-25 to 2025-26
- 90 is 9.8 points above the 80.2 average among 64 schools in Ellis County reporting this measure.
Recent domain gain
Closing the Gaps rose 9 points
82 to 91 2024-25 to 2025-26
- 91 is 12.7 points above the 78.3 average among 59 schools in Ellis County reporting this measure.
Top placement
Science — Masters
40% 3rd of 51 schools in Ellis County reporting this measure · 2025-26
See the full measureRecent movement
Overall score rose 4 points
86 to 90 2024-25 to 2025-26
- 90 is 8.3 points above the 81.7 average among 2,597 similarly sized schools reporting this measure.
Recent domain gain
Closing the Gaps rose 9 points
82 to 91 2024-25 to 2025-26
- 91 is 11.8 points above the 79.2 average among 2,560 similarly sized schools reporting this measure.
STAAR result
All Subjects above similar-size averages at Meets and Masters
- Meets
- 62%vs 52.3% avg · +9.7 pts
- Masters
- 30%vs 25.7% avg · +4.3 pts
Among 2,560 similarly sized schools reporting this measure.
See the full measureRecent movement
Overall score rose 4 points
86 to 90 2024-25 to 2025-26
- 90 is 8.7 points above the 81.3 average among 7,646 Texas schools reporting this measure.
Recent domain gain
Closing the Gaps rose 9 points
82 to 91 2024-25 to 2025-26
- 91 is 12.3 points above the 78.7 average among 7,185 Texas schools reporting this measure.
STAAR result
All Subjects above Texas averages at Meets and Masters
- Meets
- 62%vs 50.8% avg · +11.2 pts
- Masters
- 30%vs 22.8% avg · +7.2 pts
Among 7,260 Texas schools reporting this measure.
See the full measureSelected positive signals, not a summary of performance. The same rules choose them on every page: only the latest one-year gain, results meaningfully better than the currently selected comparison with broad reporting, and distinctive top-three placements. Demographics, staffing and spending cannot become academic “wins.” The overall rating and the full results below remain the complete picture for this school.
Read the full rating context and placement
Earl & Marthalu Dieterich MS is rated A by TEA, scoring 90 out of 100 for 2025-26 — above the 89.2 average for 828 rated schools serving a similar economic context. It is up 4 points since 2021-22.
Ranks 417th of 828 rated schools serving a similar economic context (tied with 74 others).
Earl & Marthalu Dieterich MS is rated A by TEA, scoring 90 out of 100 for 2025-26 — above the 82.2 average for 1,157 rated schools in Region 10: Richardson. It is up 4 points since 2021-22.
Ranks 280th of 1,157 rated schools in Region 10: Richardson (tied with 56 others).
Earl & Marthalu Dieterich MS is rated A by TEA, scoring 90 out of 100 for 2025-26 — above the 80.2 average for 64 rated schools in Ellis County. It is up 4 points since 2021-22.
Ranks 8th of 64 rated schools in Ellis County (tied with 1 other).
Earl & Marthalu Dieterich MS is rated A by TEA, scoring 90 out of 100 for 2025-26 — above the 81.7 average for 2,597 similarly sized rated schools. It is up 4 points since 2021-22.
Ranks 571st of 2,597 similarly sized rated schools (tied with 128 others).
Earl & Marthalu Dieterich MS is rated A by TEA, scoring 90 out of 100 for 2025-26 — above the 81.3 average for 7,646 rated Texas schools. It is up 4 points since 2021-22.
Ranks 1,571st of 7,646 rated Texas schools (tied with 341 others).
Put the numbers in context
Compare with
Jump to a section
5 years of ratings
Follow the solid line to see how this school has changed. Turn comparison lines on or off to add context.
Compare against
2021-22 is shown under the refreshed methodology TEA adopted in 2023, so it is comparable with later years. Under the original scoring it was rated B with 83 that year.
Comparison lines follow the current rated cohort backward through time. The table gives the number in that fixed cohort that reported a score each year; it can be smaller than cohort membership.
View the yearly scores and comparisons
| Year | Rating | Score | Selected comparisonSimilar economic-disadvantage rate | StateTexas average |
|---|---|---|---|---|
| 2025-26 | A | 90 | 89.2 828 reporting | 81.3 7,646 reporting |
| 2024-25 | B | 86 | 89.1 822 reporting | 81.2 7,554 reporting |
| 2023-24 | B | 85 | 87.9 808 reporting | 78.9 7,466 reporting |
| 2022-23 | B | 88 | 88.3 792 reporting | 79.1 7,377 reporting |
| 2021-22 | B | 86 | 89.2 778 reporting | 83.7 7,283 reporting |
Where the score comes from
Texas builds the overall rating from the better of Student Achievement and School Progress, weighted 70%, plus Closing the Gaps at 30%. School Progress is itself the better of Academic Growth and Relative Performance. The 60, 70, 80 and 90 rules mark the letter-grade thresholds.
- Earl & Marthalu Dieterich MS
- Similar economic-disadvantage rate (828 in cohort)
| Domain | Score | Grade | Points to next grade |
|---|---|---|---|
| Student Achievement | 89 | B | 1 |
| School Progress | 83 | B | 7 |
| Closing the Gaps | 91 | A | — |
| Academic Growth | 83 | B | 7 |
| Relative Performance | 70 | C | 10 |
Closest to moving up: Student Achievement, 1 point below A in that domain — the nearest of the measures that count toward the overall rating.
TEA does not add the domains up. The overall score is the better of Student Achievement and School Progress at 70%, plus Closing the Gaps at 30%. For this school that better measure is Student Achievement (89), so School Progress (83) is published above but does not enter the overall score at all — gaining points there changes nothing until it passes 89.
Student outcomes
STAAR performance
- Approaches grade level
- Meets grade level
- Masters grade level
- Tick: Similar economic-disadvantage rate (828 in cohort)
Percentage of tests at or above each level. Masters is a subset of Meets, which is a subset of Approaches. The selected-comparison tick on each bar marks the average for schools with a similar economic-disadvantage rate — a comparison TEA does not publish.
Counts in the comparison controls describe full cohort membership, not the denominator of every average. Each average uses only schools for which TEA reported that measure; metric-specific reporting counts are shown on the STAAR, graduation and CCMR rows and may vary.
Who this school serves
Placed after the results deliberately: this is context for reading them, not an explanation of them.
- Students
- 1,007
- Economically disadvantaged
- 22.7%−0.9 pts vs similar economic context
- English learners
- 3.0%−7.1 pts vs similar economic context
- Special education
- 15.0%−1.8 pts vs similar economic context
- Attendance
- 95.6%+0.1 pts vs similar economic context
- Chronically absent
- 9.0%−0.1 pts vs similar economic context
Student demographics
Earl & Marthalu Dieterich MS
- African American 15.5%
- Hispanic 20.5%
- White 57.3%
- American Indian 0.5%
- Asian 0.7%
- Pacific Islander 0.1%
- Two or More Races 5.5%
Selected comparison average For schools with a similar economic-disadvantage rate · 828 reporting for every category shown · 828 in full cohort
- African American 8.2%
- Hispanic 25.9%
- White 48.6%
- American Indian 0.3%
- Asian 11.7%
- Pacific Islander 0.1%
- Two or More Races 5.2%
Selected comparison average For Region 10: Richardson · 1,157 reporting for every category shown · 1,157 in full cohort
- African American 17.4%
- Hispanic 43.5%
- White 24.5%
- American Indian 0.6%
- Asian 9.9%
- Pacific Islander 0.1%
- Two or More Races 4%
Selected comparison average For Ellis County · 64 reporting for every category shown · 64 in full cohort
- African American 17%
- Hispanic 43.6%
- White 34.3%
- American Indian 0.2%
- Asian 0.6%
- Pacific Islander 0.2%
- Two or More Races 4.2%
Selected comparison average For similarly sized schools · 2,597 reporting for every category shown · 2,597 in full cohort
- African American 12.6%
- Hispanic 51.9%
- White 24.5%
- American Indian 0.3%
- Asian 6.8%
- Pacific Islander 0.2%
- Two or More Races 3.7%
Statewide average 7,646 reporting for every category shown · 7,646 Texas schools in full cohort
- African American 11.5%
- Hispanic 52.6%
- White 27.8%
- American Indian 0.3%
- Asian 4.2%
- Pacific Islander 0.1%
- Two or More Races 3.4%
Student counts behind the percentages
Context only. These counts are not rankings, comparisons, or judgments about school quality.
- Students in this TEA accountability summary
- 1,006
- Economically disadvantaged students
- 228
- Emergent bilingual students
- 30
- Special education students
- 151
Campus mobility · 2024–25
- Mobile students
- 51
- Students in TEA mobility denominator
- 1,024
- TEA-published mobility rate
- 5%
The mobility count and rate use TEA’s separate 2024–25 campus denominator shown above, not current enrollment. This site does not recalculate a missing rate.
The first figure is TEA’s student count for this accountability summary. It is a separate publication from the fall PEIMS enrollment shown above and can differ; this site does not substitute one for the other. Counts come from TEA’s 2025-26 accountability summary, fetched 29 August 2026. A reported zero is shown as 0. Small-number and complementary masks, unavailable values, and blank not-reported fields stay separate and are never estimated. TEA masking definitions.
Enrollment over time
TEA-reported student enrollment for each available school year. Enrollment growth or decline is not a measure of school quality.
TEA reported 1,007 students in 2025–26, an increase of 18 (1.8%) from 2024–25.
- Latest enrollment
- 1,007
2025–26
- Change from 2024–25
- +18
Increase · +1.8%
- Change since 2021–22
- +188
Increase · +23.0%
Enrollment in 2025–26
- This school
- 1,007
- Selected comparison
- 858.4
| School year | Students enrolledEarl & Marthalu Dieterich MS | Change from previous school year | Average enrollmentselected comparison |
|---|---|---|---|
| 2021–22 | 819 | First available year | 874.3 |
| 2022–23 | 947 | Increase of 128 (15.6%) | 879 |
| 2023–24 | 990 | Increase of 43 (4.5%) | 873.7 |
| 2024–25 | 989 | Decrease of 1 (0.1%) | 868.1 |
| 2025–26 | 1,007 | Increase of 18 (1.8%) | 858.4 |
The selected comparison column is the average enrollment among reporting schools in that group. It changes with the comparison control; this school's own counts do not.
Source: TEA PEIMS Student Program and Special Populations Reports, fetched 24 August 2026. TEA reports these counts from its fall student snapshot; changes compare adjacent reported school years.
These counts show how enrollment changed, not why. Attendance-zone changes, school openings or closures, grade reconfigurations, transfers and population shifts can affect the total.
Discipline and removal from class
TEA’s annual student and action counts, kept separate and divided only by the matching full-year enrollment. These figures describe removals from instruction, not a simple safe-or-unsafe score.
- Students in TEA’s all-discipline count
- 144
14.1% of cumulative year-end enrollment
- Disciplinary actions
- 312
30.53 per 100 students
- Cumulative year-end enrollment
- 1,022
2024–25
Share of students · 2024–25
- This school
- 14.1%
- Selected comparison
- 7.5%
Actions per 100 students · 2024–25
- This school
- 30.53
- Selected comparison
- 14.6
| School year | Cumulative enrollment | Studentsall discipline | Students% of enrollment | Actionsall discipline | Actionsper 100 students | Studentsselected comparison average % | Actionsselected comparison average per 100 |
|---|---|---|---|---|---|---|---|
| 2020–21 | 781 | 44 | 5.6% | 68 | 8.71 | 5.6% | 9.6 |
| 2021–22 | 839 | 72 | 8.6% | 123 | 14.66 | 7.7% | 15.3 |
| 2022–23 | 981 | 177 | 18.0% | 363 | 37.00 | 8.0% | 15.7 |
| 2023–24 | 1,037 | 140 | 13.5% | 357 | 34.43 | 7.6% | 15.2 |
| 2024–25 | 1,022 | 144 | 14.1% | 312 | 30.53 | 7.5% | 14.6 |
See 2024–25 discipline categories
| Category | Students | Students% of enrollment | Actions | Actionsper 100 students | Studentsselected comparison average % | Actionsselected comparison average per 100 |
|---|---|---|---|---|---|---|
| All discipline | 144 | 14.1% | 312 | 30.53 | 7.5% | 14.6 |
| In-school suspensions | 136 | 13.3% | 231 | 22.60 | 6.8% | 11.6 |
| Out-of-school suspensions | 54 | 5.3% | 69 | 6.75 | 3.6% | 4.8 |
| DAEP placements | 11 | 1.1% | 12 | 1.17 | 2.6% | 2.9 |
| Mandatory DAEP placements | Suppressed | — | Suppressed | — | — | — |
| Discretionary DAEP placements | Suppressed | — | Suppressed | — | — | — |
| JJAEP placements | Not reported | — | Not reported | — | — | — |
| Mandatory JJAEP placements | Not reported | — | Not reported | — | — | — |
| Discretionary JJAEP placements | Not reported | — | Not reported | — | — | — |
| Expulsions | Not reported | — | Not reported | — | — | — |
| Mandatory expulsions | Not reported | — | Not reported | — | — | — |
| Discretionary expulsions | Not reported | — | Not reported | — | — | — |
Selected comparisons use rates, not raw counts, so differently sized schools can be read on the same basis. Each average uses only group members for which TEA reported that rate; this school's own counts and rates remain fixed.
Students, actions and incidents are different units. One student can receive multiple actions. The categories overlap, so they must not be added together. Rates use TEA's matching cumulative year-end enrollment, not the October enrollment shown elsewhere on this page.
Source: TEA Discipline Reports, fetched 24 August 2026. Suppressed values stay unavailable rather than being estimated. Use 2020–21 cautiously because remote instruction during the pandemic changed students' exposure to in-person discipline. TEA consolidated its separate action-group reports into this product in 2024–25; this trend uses only the stable “All discipline” heading.
Spending per student
The campus and its parent district stay fixed while the selected same-sector txschools.net comparison changes with the page-wide control. TEA's own peer group and statewide reference remain visible as separately published, fixed TEA references.
- Earl & Marthalu Dieterich MS
- Parent district: Midlothian ISD
- Texas average
- Selected comparison: Similar economic-disadvantage rate
Spending per student · 2025
- This school
- $6,419
- Selected comparison
- $11,215
For 2025, TEA reported $6,419 per student for this campus, $14,691 per student for its parent district, Midlothian ISD, $18,972 per student for the Texas average.
Not reported in this TEA campus finance record: TEA peer group.
View yearly spending figures
| Year | Earl & Marthalu Dieterich MS | Parent district: Midlothian ISD | Texas average | Selected comparison average | Reportingselected comparison |
|---|---|---|---|---|---|
| 2021 | $6,588 | $20,895 | $14,797 | $8,433 | average for schools with a similar economic-disadvantage rate · 760 rated schools reporting |
| 2022 | $7,371 | $20,156 | $15,708 | $9,465 | average for schools with a similar economic-disadvantage rate · 777 rated schools reporting |
| 2023 | $6,310 | $15,147 | $16,792 | $10,022 | average for schools with a similar economic-disadvantage rate · 793 rated schools reporting |
| 2024 | $6,595 | $15,086 | $18,125 | $11,097 | average for schools with a similar economic-disadvantage rate · 808 rated schools reporting |
| 2025 | $6,419 | $14,691 | $18,972 | $11,215 | average for schools with a similar economic-disadvantage rate · 821 rated schools reporting |
The selected-comparison reporting count is year-specific and can vary across the table. Dollar amounts are shown as TEA published them and are not adjusted for inflation.
Teachers and actual class size
- Average salary
- $67,496−$1,236 vs similar economic context
- Teachers
- 53−1.6 vs similar economic context
- Students per staff member
- 18.9+4.1 vs similar economic context
Teaching experience
Earl & Marthalu Dieterich MS
- Beginning 10.5%
- 1 to 5 years 18.7%
- 6 to 10 years 15%
- 11 to 20 years 39.9%
- 21 to 30 years 15.9%
Selected comparison average For schools with a similar economic-disadvantage rate · 828 reporting for every category shown · 828 in full cohort
- Beginning 4.8%
- 1 to 5 years 22.6%
- 6 to 10 years 19.9%
- 11 to 20 years 32.5%
- 21 to 30 years 17%
- Over 30 years 3%
Selected comparison average For Region 10: Richardson · 1,157 reporting for every category shown · 1,157 in full cohort
- Beginning 6.9%
- 1 to 5 years 29%
- 6 to 10 years 20.1%
- 11 to 20 years 27.5%
- 21 to 30 years 13.7%
- Over 30 years 2.8%
Selected comparison average For Ellis County · 64 reporting for every category shown · 64 in full cohort
- Beginning 5.1%
- 1 to 5 years 23.9%
- 6 to 10 years 20.5%
- 11 to 20 years 33.1%
- 21 to 30 years 14.9%
- Over 30 years 2.5%
Selected comparison average For similarly sized schools · 2,597 reporting for every category shown · 2,597 in full cohort
- Beginning 6.3%
- 1 to 5 years 27.1%
- 6 to 10 years 20.4%
- 11 to 20 years 28.9%
- 21 to 30 years 14.5%
- Over 30 years 2.7%
Statewide average 7,646 reporting for every category shown · 7,646 Texas schools in full cohort
- Beginning 6.2%
- 1 to 5 years 25.6%
- 6 to 10 years 19.2%
- 11 to 20 years 28.7%
- 21 to 30 years 15.9%
- Over 30 years 3.7%
Average students in a class
| Grade or subject | Average students per classEarl & Marthalu Dieterich MS · 2024–25 | Average students per classselected comparison |
|---|---|---|
| Grade 6 | 20.3 | 19.4 |
| Secondary English | 16.7 | 17.7 |
| Secondary languages other than English | 30.3 | 19.8 |
| Secondary math | 18.6 | 18.3 |
| Secondary science | 19.8 | 20 |
| Secondary social studies | 19.8 | 20.1 |
These are TEA's actual class-size averages for the grade or subject shown, not the student-to-teacher ratio. TEA reported 6 of 12 categories for this campus; the categories are not combined into a made-up campus-wide average. Each selected comparison average uses only schools reporting that same grade or subject.
Source: TEA Texas Academic Performance Reports, fetched 24 August 2026.
Where this school ranks best
Out of 120 rankings computed across every published metric and every available comparison group, these are all the measures that meet this site’s distinctive-placement threshold. The list does not change when you change Compare against. Each measure appears once, using its strongest placement. Press Copy for a citable sentence.
#2–3 rankings
Second- and third-place results
1 measure
-
3of 51
Science — Masters
Ellis County · of the 51 that report this measure
#4–10 rankings
Fourth- through tenth-place results
11 measures
-
5of 51
Science — Meets
Ellis County · of the 51 that report this measure
-
6of 60
Reading — Masters
Ellis County · of the 60 that report this measure · tied with 1
-
6of 59
Math — Meets
Ellis County · of the 59 that report this measure · tied with 1
-
7of 60
All Subjects — Masters
Ellis County · of the 60 that report this measure
-
8of 64
Overall score
Ellis County · of the 64 that report this measure · tied with 1
-
8of 59
Math — Approaches
Ellis County · of the 59 that report this measure · tied with 1
-
9of 59
Closing the Gaps
Ellis County · of the 59 that report this measure · tied with 1
-
9of 25
Social Studies — Masters
Ellis County · of the 25 that report this measure
-
10of 60
All Subjects — Meets
Ellis County · of the 60 that report this measure
-
10of 60
Reading — Approaches
Ellis County · of the 60 that report this measure · tied with 1
-
10of 25
Social Studies — Meets
Ellis County · of the 25 that report this measure · tied with 1
These are selected high placements, not a summary. Every figure above this section is the full picture, including where this school ranks poorly. Each measure appears once here, using its strongest qualifying placement across all available comparison groups. Very large ties are left out because they do not distinguish this school; any tie that does appear is labeled. Every ranking this site publishes, including the ones no school would put in a press release.
Where this comes from
The Texas Education Agency publishes the underlying accountability reports and data downloads. Ratings, outcomes, demographics, staffing and finance on this page come from TEA data available through txschools.gov, fetched 15 August 2026. TEA’s Reports and Data Portal links the official bulk files. Enrollment history comes from TEA's PEIMS Student Program and Special Populations reports, fetched 24 August 2026. The student-count context comes from TEA’s bulk accountability summary, fetched 29 August 2026; TEA’s masking definitions explain withheld values. The dated notice, staffing, discipline, transfer, community and postsecondary sections cite their separate TEA, Census or THECB publication in place. Every archived source carries checksums so each number stays traceable to the bytes the public agency served.
Download the full dataset · this campus's district
Single-file records are pre-built for district-level records only, so there is no per-campus CSV to
link here. Producing both formats for every entity would consume most of the 20,000-asset deployment limit before
pages and shared data are counted. This campus is a row
in the bulk files on the download page, keyed by its TEA id 070908045.