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SCHOOL COMMUNITY·HARFORD COUNTY PUBLIC SCHOOLS·NCES 240039000712

Prospect Mill Elementary

101 Prospect Mill Rd, Bel Air, MD 21015 · (410) 638-3817 · Harford County
GRADES PK–05ELEMENTARY41-RURALREGULAR SCHOOL579 STUDENTS
A
allk12 Grade
Scored higher than 86% of Maryland public elementary schools
  • A-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • A-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
579
Elementary
DISTRICT 537 · STATE 481
Student : Teacher
14.5:1
40 FTE teachers
DISTRICT 14.3:1 · STATE 13.8:1
Free / Reduced Lunch
33%
192 students
DISTRICT 41% · 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
Pre-K336%
Kindergarten7513%
Grade 110618%
Grade 28314%
Grade 39316%
Grade 48915%
Grade 510017%

This year's kindergarten class (75) is 25% smaller than its 5th grade class (100).

Student demographics
55%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 61% · STATE 73% · US 70%
White
37364%
DISTRICT 57% · STATE 31% · US 43%
Hispanic
437%
DISTRICT 10% · STATE 24% · US 30%
Black
6611%
DISTRICT 21% · STATE 32% · US 15%
Asian
417%
DISTRICT 3% · STATE 7% · US 6%
Two+
5510%
DISTRICT 8% · STATE 5% · US 5%
Native American
10%
DISTRICT 0% · STATE 0% · US 1%
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
31554%
Female
26446%

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Test scores

MCAP 2024-25 . % Proficient (Levels 3-4)
English Language Arts
78.3%
MD avg 50.6% . +10.9pp since 2023
Math
52.1%
MD avg 34.8% . -15.3pp since 2023

What this means: On the MCAP, Maryland's statewide test, about 78 of every 100 students at this school read and write at grade level and about 52 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 11 points since 2023, while math scores are down about 15 points.

MCAP results by year

School yearEnglish Language ArtsMath
2024-2578.3%52.1%
2023-2467.4%67.4%
% 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
66.3%
composite math + reading, all grades
Predicted
54.6%
based on MD schools with similar FRL share
Beats by
+11.7pp
above demographic expectation

What this means: About 66% of students here test proficient in math and reading, compared with the roughly 55% 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 Prospect Mill Elementary

Prospect Mill Elementary's state test result (66.3% proficient) is higher than 4 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Prospect Mill Elementary this school57933.2%66.3%
Leonardtown Elementary
Leonardtown
50932.4%50.0%
Windy Hill Elementary
Owings
59830.6%66.0%
Hampton Elementary
Lutherville
55533.3%57.0%
Bel Air Elementary
Bel Air
52131.3%72.7%
William S. James Elementary
Abingdon
46329.2%57.1%
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 Prospect Mill Elementary ranks

Among elementary schools
MeasureThis schoolIn MarylandIn Harford County
State test proficiency
ranked highest first
66.3%#134 of 853#12 of 32
Math proficiency
ranked highest first
52.1%#273 of 853
▼ 166
#16 of 32
▼ 10
Reading proficiency
ranked highest first
78.3%#68 of 853
▲ 88
#3 of 32
▲ 9
Enrollment
ranked largest first
579#239 of 898#11 of 33
Students per teacher
ranked fewest first
14.5:1#507 of 857#16 of 32
Diversity index
ranked most diverse first
55.2%#451 of 857#16 of 32
Free and reduced lunch
ranked highest share first
33.2%#683 of 885#16 of 32
Enrollment change since 2017-18
ranked fastest growth first
+2.3%#248 of 294#13 of 18
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
579
+13 (+2%) vs 2020
-35% since 1990-91, when it was 885
Student : Teacher
14.5:1
was 15.3:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-255794014.5:133% (192)
2023-2459241.914.2:129% (172)
2022-2358740.414.6:128% (166)
2020-215663715.3:123% (132)
2017-1856636.115.7:122% (124)
2015-165873317.8:124% (139)
2010-119026015.0:117% (151)
2000-018794818.3:14% (38)
1990-918854121.6:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Prospect Mill Elementary.

Since 2017-18: students up 2% (566 to 579); teachers up 11% (36.1 to 40).

About Prospect Mill Elementary

Prospect Mill Elementary is an elementary school in Bel Air, Maryland, reachable at (410) 638-3817. It offers pre-K through 5 and has 579 students enrolled. It has 20% more students than the average for elementary schools in Maryland (about 481).

The Harford County Public Schools system has 55 schools and 37,771 students.

About 64% of the student body at Prospect Mill Elementary is White. Enrollment also includes 11% Black, 10% multiracial, 7% Hispanic, and 7% Asian. Among people living in Harford County, the White share is about 73%. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 55%.

Prospect Mill Elementary has a student-to-teacher ratio of 14.5:1, with 40 full-time-equivalent teachers. The ratio is within a point of the 13.8:1 average for elementary schools in Maryland. A common income measure, free or reduced-price lunch eligibility, is 33% at Prospect Mill Elementary.

On the allk12 Grade, Prospect Mill Elementary lands at A, ahead of 86% of Maryland public elementary schools.

Prospect Mill Elementary posts an average proficiency rate across its state test results of 66.3%, compared with a predicted 54.6%. It is not in the top or bottom 10% of Maryland schools on BeatsExpectations.

Looking at the county, Harford County, the median household earns about $112,265 a year, 40% of adults hold a bachelor's degree or higher, and about 5% of residents live below the federal poverty line. Counting Prospect Mill Elementary, Harford County has 55 public schools.

The closest school to Prospect Mill Elementary is Harford Academy at Campus Hills, located about 0.3 miles away. There are at least 8 more public schools inside five miles. Ranking the closest schools with test data puts Prospect Mill Elementary at 4th of 8.

For locale, NCES codes Prospect Mill Elementary as Rural: Fringe.

Between 2020-21 and 2024-25, enrollment moved from 566 to 579, a small change.

Prospect Mill Elementary has a community page on allk12 for topics such as pickup and drop-off, after-school programs, and teacher feedback. You can also rate the school on this page.

Harford County at a glance

View full county profile
Population
263,757
Census ACS
Median income
$112,265
Household, ACS
Bachelor's+
40%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
55
37,771 students

Quick facts

School name
Prospect Mill Elementary
District
Harford County Public Schools
Address
101 Prospect Mill Rd, Bel Air, MD 21015
Phone
(410) 638-3817
County
Harford County
Level
Elementary
Grade range
PK–05
Total enrollment
579
Teachers (FTE)
40
Student–teacher ratio
14.5:1
Free and reduced lunch
192 (33%)
Locale
41-Rural: Fringe
NCES ID
240039000712
Charter school
No
Virtual school
No

Related schools

Other schools in Harford County Public Schools
Other schools in Bel Air
Nearby schools

Frequently asked questions

About Prospect Mill Elementary
What is the total enrollment at Prospect Mill Elementary?
Prospect Mill Elementary enrolls approximately 579 students in grades PK-05.
What age range does Prospect Mill Elementary serve?
Prospect Mill Elementary serves students from grade PK through grade 05.
How many teachers does Prospect Mill Elementary have?
Prospect Mill Elementary employs 40 FTE teachers, for a student-to-teacher ratio of 14.5:1.
What is the student diversity at Prospect Mill Elementary?
Student demographics at Prospect Mill Elementary are roughly 64% White, 7% Hispanic, 11% Black, 7% Asian, 10% Two or more.
What district is Prospect Mill Elementary in?
Prospect Mill Elementary is part of Harford County Public Schools.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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