The bulletin board for America's public schools. Parents, teachers, students, and staff. One community per school.
SCHOOL COMMUNITY·HOWARD COUNTY PUBLIC SCHOOLS·NCES 240042000757

Thunder Hill Elementary

9357 Mellenbrook Rd, Columbia, MD 21045 · (410) 313-6922 · Howard County
GRADES KG–05ELEMENTARY12-CITYREGULAR SCHOOL459 STUDENTS
C+
allk12 Grade
Scored higher than 41% of Maryland public elementary schools
  • BTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • C-Beats 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 Maryland public elementary schools

Enrollment
459
Elementary
DISTRICT 614 · STATE 481
Student : Teacher
11.7:1
39 FTE teachers
DISTRICT 12.7:1 · STATE 13.8:1
Free / Reduced Lunch
38%
173 students
DISTRICT 29% · STATE 54%
Community
5
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Kindergarten7516%
Grade 17216%
Grade 27216%
Grade 37917%
Grade 47516%
Grade 58619%

This year's kindergarten class (75) is 13% smaller than its 5th grade class (86).

Student demographics
77%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 77% · STATE 73% · US 70%
White
10623%
DISTRICT 29% · STATE 31% · US 43%
Hispanic
9721%
DISTRICT 14% · STATE 24% · US 30%
Black
14431%
DISTRICT 25% · STATE 32% · US 15%
Asian
7316%
DISTRICT 24% · STATE 7% · US 6%
Two+
378%
DISTRICT 7% · STATE 5% · US 5%
Pacific Islander
10%
DISTRICT 0% · STATE 0% · US 0%
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
Male
23852%
Female
22048%

Discussions

+ POST

Test scores

MCAP 2024-25 . % Proficient (Levels 3-4)
English Language Arts
55.7%
MD avg 50.6% . +4.6pp since 2023
Math
44.3%
MD avg 34.8% . +3.5pp since 2023

What this means: On the MCAP, Maryland's statewide test, about 56 of every 100 students at this school read and write at grade level and about 44 of 100 do math at grade level. Across all Maryland schools, those numbers are about 51 and 35. Reading and writing scores are up about 5 points since 2023, while math scores are up about 4 points.

MCAP results by year

School yearEnglish Language ArtsMath
2024-2555.7%44.3%
2023-2451.1%40.8%
% Proficient (Levels 3-4), all students and all tested grades.
Source: MCAP. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
48.0%
composite math + reading, all grades
Predicted
51.9%
based on MD schools with similar FRL share
Beats by
-3.9pp
below demographic expectation

What this means: About 48% of students here test proficient in math and reading, compared with the roughly 52% typical for Maryland 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 Maryland'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 Thunder Hill Elementary

Thunder Hill Elementary's state test result (48.0% proficient) is higher than 1 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Thunder Hill Elementary this school45937.7%48.0%
College Gardens Elementary
Rockville
50643.3%63.6%
Brooke Grove Elementary
Olney
39034.9%45.6%
Stonegate Elementary
Silver Spring
56534.5%56.4%
Cloverly Elementary
Silver Spring
42937.5%59.3%
Clearspring Elementary
Damascus
54142.3%57.6%
Matched among Maryland elementary 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 Thunder Hill Elementary ranks

Among elementary schools
MeasureThis schoolIn MarylandIn Howard County
State test proficiency
ranked highest first
48.0%#361 of 853#29 of 42
Math proficiency
ranked highest first
44.3%#373 of 853
▲ 24
#30 of 42
▲ 4
Reading proficiency
ranked highest first
55.7%#346 of 853
▲ 5
#27 of 42
▲ 3
Enrollment
ranked largest first
459#477 of 898#33 of 42
Students per teacher
ranked fewest first
11.7:1#145 of 857#12 of 42
Diversity index
ranked most diverse first
77.1%#7 of 857#1 of 42
Free and reduced lunch
ranked highest share first
37.7%#642 of 885#18 of 42
Enrollment change since 2017-18
ranked steepest decline first
-15.6%#217 of 551#8 of 26
Ranked against other public elementary 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 2024-25
Enrollment
459
-22 (-5%) vs 2020
+11% since 1990-91, when it was 413
Student : Teacher
11.7:1
was 12.7:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2545939.311.7:138% (173)
2023-2445437.112.2:134% (155)
2022-2347237.312.7:140% (188)
2020-214813812.7:125% (118)
2017-185444013.6:116% (85)
2015-165594313.0:118% (103)
2010-113702713.7:16% (23)
2000-013942714.6:12% (9)
1990-914132417.2:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Thunder Hill Elementary.

Since 2017-18: students down 16% (544 to 459); teachers down 2% (40 to 39.3).

About Thunder Hill Elementary

A mid-sized elementary school in Columbia, Maryland, Thunder Hill Elementary is part of Howard County Public Schools. Its grade span covers kindergarten through 5, with 459 students on the rolls.

Howard County Public Schools (77 schools, 57,565 students) runs Thunder Hill Elementary.

The largest racial or ethnic group at Thunder Hill Elementary is Black, with 31% of students. Next come 23% White, 21% Hispanic, 16% Asian, and 8% multiracial. The county population is about 20% Black. On the diversity index, which measures the chance that two random students are from different groups, Thunder Hill Elementary scores 77%.

The student-to-teacher ratio is 11.7:1. The school has 39.3 full-time-equivalent teachers. The gap from the 13.8:1 average for elementary schools in Maryland is 2.2 students per teacher. In all, 38% of students qualify for free or reduced-price lunch. Compared with the 27% average for public schools in Howard County, the school's rate is higher.

Among Maryland public elementary schools, Thunder Hill Elementary outscored 41%, which works out to a C+ on the allk12 Grade.

Thunder Hill Elementary's average proficiency rate across its state test results of 48.0% is 3.9 points below the 51.9% the model predicts from its lunch-eligibility share.

In the wider Howard County area, median household income comes to about $149,763, 65% of adults hold a bachelor's degree or higher, and about 4% of residents live below the federal poverty line. Howard County counts 78 public schools with about 57,565 students.

A public school about 1.0 miles away, Phelps Luck Elementary, is the closest to Thunder Hill Elementary. In all, at least 8 other public schools sit within five miles of Thunder Hill Elementary. On proficiency, Thunder Hill Elementary is ahead of the 44.3% nearby average, ranking 4th of 9.

Thunder Hill Elementary is coded as City: Mid-size in federal locale data.

Enrollment figures show a decline of 22 students from 2020-21 to 2024-25.

You can use this page to share news and ask questions about open houses, carpools, and field trips. You can also rate the school on this page.

Howard County at a glance

View full county profile
Population
336,328
Census ACS
Median income
$149,763
Household, ACS
Bachelor's+
65%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
78
57,565 students

Quick facts

School name
Thunder Hill Elementary
District
Howard County Public Schools
Address
9357 Mellenbrook Rd, Columbia, MD 21045
Phone
(410) 313-6922
County
Howard County
Level
Elementary
Grade range
KG–05
Total enrollment
459
Teachers (FTE)
39
Student–teacher ratio
11.7:1
Free and reduced lunch
173 (38%)
Locale
12-City: Mid-size
NCES ID
240042000757
Charter school
No
Virtual school
No

Related schools

Other schools in Howard County Public Schools
Other schools in Columbia
Nearby schools

Frequently asked questions

About Thunder Hill Elementary
How many students attend Thunder Hill Elementary?
Thunder Hill Elementary enrolls approximately 459 students in grades KG-05.
What grades does Thunder Hill Elementary serve?
Thunder Hill Elementary serves grades KG-05.
What is the student-teacher ratio at Thunder Hill Elementary?
The student-to-teacher ratio at Thunder Hill Elementary is approximately 11.7:1 (39 FTE teachers).
What is the racial breakdown of students at Thunder Hill Elementary?
At Thunder Hill Elementary, the student body is approximately 23% White, 21% Hispanic, 31% Black, 16% Asian, 8% Two or more.
Is Thunder Hill Elementary public or private?
Thunder Hill Elementary is a public K-12 school, overseen by Howard County Public Schools.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
+ Post