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A+

Patterson Mill High School

PublicHighGrades 9–12

85 Patterson Mill Rd, Bel Air, MD 21015 · (410) 638-4640 · Part of Harford County Public Schools

Bel Air South’s School Grade B better than 64% of Maryland school districts

Directions
Students
839
Students per teacher
17:1
Free or reduced lunch
24%
Setting
Suburb
Grades
9–12
The gist

What stands out about Patterson Mill High School

  • Its own letter, A+: reading and math results near the top of Maryland’s public schools
  • Math proficiency 58 pts above the state
  • Reading / language arts 37 pts above the state

On the path

Where Bel Air South kids come from and go next. The whole path →

6–8Patterson Mill Middle Schoolin Bel Air
9–12Patterson Mill High SchoolYou are here

Test scores

2020–21
Math proficiency77%
State average 19.3%
Reading / language arts72%
State average 35.5%

Its own letter, A+, places these results among Maryland’s 1,321 public schools with results. Source: EDFacts via Urban Institute Education Data Portal (SY2020-21).

Location

Directions ↗

85 Patterson Mill Rd, Bel Air

Students

Enrollment by grade
Grade 9238
Grade 10220
Grade 11207
Grade 12174
Enrollment over time
836’20
802’21
819’22
826’23
839’24

About steady since 2020–21.

Who goes here
White 68%Hispanic 9%Black 8%Two or more races 7%Asian 7%American Indian/Alaska Native <1%Native Hawaiian/Pacific Islander <1%

As reported to NCES, share of students with a reported race or ethnicity.

Parents talk

Questions and answers about Patterson Mill High School from Bel Air South families.

Other schools in Harford County Public Schools

The district →
Homestead/Wakefield Elementary
Elementary · Grades PK–5 · Bel Air
B+
1,071 students17:1
Old Post Road Elementary
Elementary · Grades PK–5 · Abingdon
C−
850 students13:1
Church Creek Elementary
Elementary · Grades PK–5 · Belcamp
C+
732 students14:1
Deerfield Elementary
Elementary · Grades PK–5 · Edgewood
C
708 students13:1
Abingdon Elementary
Elementary · Grades PK–5 · Abingdon
B
641 students13:1
Havre de Grace Elementary
Elementary · Grades PK–5 · Havre De Grace
B−
593 students15:1

School facts: U.S. Department of Education (NCES), 2024–2025 school year. Test scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). A school’s letter is our own summary of its reading and math results against Maryland’s other public schools; Bel Air South’s School Grade is built from its districts’ results. Map: © OpenStreetMap contributors.