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If you had an hour of school board time for MERCER MIDDLE, what would you bring up?
Community prompt from u/allk12. Replies below.
Enrollment
1,459
Middle
DISTRICT 1,057 · STATE 750
SCHOOL COMMUNITY·LOUDOUN COUNTY PUBLIC SCHOOLS·NCES 510225002450
Mercer Middle
42149 Greenstone Dr., Aldie, VA 20105 · (703) 957-4340 · Loudoun County
GRADES 06–08MIDDLE21-SUBURBREGULAR SCHOOL1,459 STUDENTS
B+
allk12 Grade
Scored higher than 72% of Virginia public middle schools
- ATest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- BBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Virginia public middle schools
Student : Teacher
14.3:1
102 FTE teachers
DISTRICT 13.0:1 · STATE 13.1:1
Free / Reduced Lunch
20%
297 students
DISTRICT 31% · STATE 66%
Community
1
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 6 | 477 | 33% |
| Grade 7 | 483 | 33% |
| Grade 8 | 499 | 34% |
Student demographics
64%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 73% · STATE 71% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
SOL 2024-25 . % PassingEnglish Language Arts
86.0%
VA avg 74.2% . +3.0pp since 2022
Math
82.0%
VA avg 72.7% . +5.0pp since 2022
What this means: On the SOL, Virginia's statewide test, about 86 of every 100 students at this school read and write at grade level and about 82 of 100 do math at grade level. Across all Virginia schools, those numbers are about 74 and 73. Reading and writing scores are up about 3 points since 2022, while math scores are up about 5 points.
SOL results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 86.0% | 82.0% |
| 2023-24 | 83.0% | 78.0% |
| 2022-23 | 83.0% | 77.0% |
% Passing, all students and all tested grades.
Source: SOL. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
83.8%
composite math + reading, all grades
Predicted
82.6%
based on VA schools with similar FRL share
Beats by
+1.2pp
above demographic expectation
What this means: About 84% of students here test proficient in math and reading, compared with the roughly 83% typical for Virginia schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Virginia's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Mercer Middle
Mercer Middle's state test result (83.8% proficient) is higher than 0 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Mercer Middle this school | 1,459 | 20.4% | 83.8% |
| Stone Hill Middle Ashburn | 1,146 | 19.5% | 85.9% |
| Carson Middle Herndon | 1,358 | 20.5% | 86.2% |
| Brambleton Middle Ashburn | 1,164 | 11.8% | 88.3% |
| Eagle Ridge Middle Ashburn | 1,258 | 12.4% | 91.3% |
| J. Michael Lunsford Middle Chantilly | 1,182 | 18.4% | 86.8% |
Matched among Virginia middle schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Mercer Middle ranks
Among middle schools| Measure | This school | In Virginia | In Loudoun County |
|---|---|---|---|
| State test proficiency ranked highest first | 83.8% | #48 of 337 | #10 of 17 |
| Math proficiency ranked highest first | 82.0% | #66 of 342 ▲ 32 | #12 of 18 no change |
| Reading proficiency ranked highest first | 86.0% | #43 of 342 ▲ 14 | #9 of 18 ▲ 1 |
| Enrollment ranked largest first | 1,459 | #8 of 343 | #2 of 18 |
| Students per teacher ranked fewest first | 14.3:1 | #231 of 327 | #13 of 18 |
| Diversity index ranked most diverse first | 64.4% | #133 of 333 | #13 of 18 |
| Free and reduced lunch ranked highest share first | 20.4% | #310 of 340 | #10 of 18 |
| Enrollment change since 2017-18 ranked steepest decline first | -22.3% | #24 of 224 | #3 of 13 |
Ranked against other public middle schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
1,459
+218 (+18%) vs 2020
+10% since 2010-11, when it was 1,326
Student : Teacher
14.3:1
was 13.2:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 1,459 | 102.1 | 14.3:1 | 20% (297) |
| 2023-24 | 1,444 | 103.8 | 13.9:1 | 19% (273) |
| 2022-23 | 1,379 | 95 | 14.5:1 | 18% (254) |
| 2020-21 | 1,241 | 94 | 13.2:1 | N/A |
| 2017-18 | 1,878 | 134.4 | 14.0:1 | 9% (162) |
| 2015-16 | 1,583 | 91 | 17.4:1 | 8% (134) |
| 2010-11 | 1,326 | 69 | 19.2:1 | 11% (143) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Mercer Middle.
Since 2017-18: students down 22% (1,878 to 1,459); teachers down 24% (134.4 to 102.1).
About Mercer Middle
Mercer Middle, located in Aldie, Virginia, is a high-enrollment middle-grades school. It is open to students in grades 6 through 8 and enrolls 1,459 students. Middle schools in Virginia have about 750 students on average; enrollment here is 95% higher.
Loudoun County Public Schools enrolls 81,486 students in 98 schools, including Mercer Middle.
The student body at Mercer Middle is 52% Asian. The rest of enrollment is 26% White, 9% Black, 7% Hispanic, and 4% multiracial. Among all residents of Loudoun County, the Asian share is about 22%. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 64%.
There are 102.1 full-time-equivalent teachers at Mercer Middle, giving a ratio of 14.3:1. Middle schools in Virginia have an average ratio of 13.1:1. By family income, 20% of students are eligible for free or reduced-price lunch. The rate at public schools in Loudoun County averages 28%, higher than here.
Mercer Middle holds a B+ allk12 Grade, placing it above 72% of Virginia public middle schools.
When test results are adjusted for free or reduced-price lunch eligibility, Mercer Middle is 1.2 points above its prediction. Actual: 83.8%. Predicted: 82.6%.
In Loudoun County, median household income comes to about $181,765, a bachelor's degree or higher is held by about 65% of adults, and the poverty rate is about 3%. The county's public schools total 103, with about 81,486 students.
About 1.0 miles separate Mercer Middle from the closest public school, Liberty Elementary. A five-mile radius around the school includes at least 8 other public schools. Local comparison: Mercer Middle ranks 5th of 9 nearby schools, at 83.8% versus an 84.4% average.
On the NCES locale scale, the school is Suburb: Large.
The school's student count increased 18% between the 2020-21 and 2024-25 school years. By 2024-25, the school had 14.3 students per teacher, compared with 13.2 in 2020-21.
Use the discussion section to ask about open houses, carpools, and field trips at Mercer Middle. Current and former families are welcome to add their experience.
Loudoun County at a glance
View full county profilePopulation
432,998
Census ACS
Median income
$181,765
Household, ACS
Bachelor's+
65%
Adults 25+
Poverty rate
3%
Below federal line
Schools in county
103
81,486 students
Quick facts
Related schools
Other schools in Loudoun County Public Schools
- Independence HighHigh · 2,166 students
- Lightridge HighHigh · 2,030 students
- Freedom HighHigh · 1,885 students
- Briar Woods HighHigh · 1,862 students
- John Champe HighHigh · 1,851 students
- Riverside HighHigh · 1,710 students
Other schools in Aldie
- Lightridge HighHigh · 2,030 students
- John Champe HighHigh · 1,851 students
- Willard MiddleMiddle · 1,684 students
- Goshen Post ElementaryElementary · 851 students
- Hovatter ElementaryElementary · 810 students
- Henrietta Lacks ElementaryElementary · 780 students
Other Mercer Middle schools
One other US public school is named Mercer Middle. Mercer Middle is the largest of the 2.
- Mercer Middle SchoolGarden City, GA · 512 students
Nearby schools
- Liberty Elementary1.0 mi · 813
- Freedom High1.0 mi · 1,885
- Pinebrook Elementary1.0 mi · 699
- Arcola Elementary1.1 mi · 748
- John Champe High1.1 mi · 1,851
- Goshen Post Elementary1.1 mi · 851
Frequently asked questions
About Mercer MiddleHow many students attend Mercer Middle?
Mercer Middle enrolls approximately 1,459 students in grades 06-08.
Is Mercer Middle an elementary, middle, or high school?
Mercer Middle is a middle school covering grades 06-08.
How many teachers does Mercer Middle have?
Mercer Middle employs 102 FTE teachers, for a student-to-teacher ratio of 14.3:1.
What is the student diversity at Mercer Middle?
Student demographics at Mercer Middle are roughly 26% White, 7% Hispanic, 9% Black, 52% Asian, 4% Two or more.
What district is Mercer Middle in?
Mercer Middle is part of Loudoun County Public Schools.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.