Skip to main content

Public middle school · Anne Arundel County Public Schools · Millersville, Maryland

Old Mill Middle South

Old Mill Middle South rates 6.7, right at the middle of Anne Arundel County Public Schools's middle schools, whose rated median is 6.4.

Middle schools, 1 to 10This campus against public middle schools around it that are rated on verified state test data.
6.7this school

6.7 on a one-to-ten scale; the Anne Arundel County Public Schools median is 6.4.

#588 of 1,363 schools in Maryland · Anne Arundel County Public Schools: 20 middle schools rated, median 6.4

The brief

An Anne Arundel County Public Schools middle school where students score 17 points below what's typical for similar communities.

It ranks 588 of 1,363 schools in Maryland and 46 of 123 in Anne Arundel County Public Schools.

Old Mill Middle South is listed in Anne Arundel County Public Schools, and a district label does not verify attendance for an address: confirm the zoned campus with the district before you commit to a street.

Math17%10 points below the Maryland average of 27%1,118 students tested · 2026 MCAP
Reading45%7 points below the Maryland average of 52%1,114 students tested · 2026 MCAP
Proficiency is down 50 points across the 18-year record (2009–2026) and has held near 31% recently.2026 MCAP; 30 test records from MD state assessments and EdFacts (NCES).

What the rating is made of, each out of 10

Student Progress
7.4
40% of the rating
Academics
4.4
35% of the rating
Resources & Environment
8.6
25% of the rating
About this school's data1 correction under review · rating: low confidence · 7 sources, 2019–2026

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, an estimate, or describes a surrounding area rather than the school, that limitation is named here.

Attendance data is under correction. This existing Resources & Environment score and overall rating may still reflect an unverified attendance input.

Full Profile · 3/3 metrics

Multi-year averages used by the rating model: math 44% (multi-year average, 2009-2026) · reading/ELA 59% (multi-year average, 2009-2026).

School directory (enrollment, grades, staff, contact)
NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
  • Source period: SY 2023–24. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2026 MCAP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2026 MCAP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
State assessments · Mixed source periods · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 21108; this does not measure the attendance area.
Programs (AP/IB, athletics, gifted)
CRDC via Urban Institute · SY 2021–22 · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: SY 2021–22. A newer release may be available.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2026; directory SY 2023–24

The neighborhood

Where it sits, and what the area looks like.
Old Mill Middle South and the 20 nearest middle schools, each pin colored by its score.Pins are locations, not attendance boundaries. Verify the enrollment path with the district.

The area

Median income
$146,556
Median home value
$543,200
Median rent
$2,030/mo
College educated
53.6%
Homeownership
87%
Poverty rate
3.5%

U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 21108; this is area context, not an attendance boundary.

Getting around

Walk Score
28
Car-Dependent
Transit Score
16
Minimal Transit
Bike Score
26
Somewhat Bikeable
County reported crime
1,960/100K
Reported Part-1 offenses (violent + property + arson) per 100,000 county residents, counting every city police department, sheriff's office and county police department that reported a full year to the FBI Uniform Crime Reporting program. Shown only where those agencies cover at least 80% of the county's residents. Not a school safety rating.

Walk, transit and bike scores byWalk Score

FBI Uniform Crime Reporting · 2025 · county context, not school-level safety or attendance eligibility. Source details

Programs and who goes here

What the campus offers, and who it enrolls.

Programs

Gifted and talented
Available
A program for qualifying students · CRDC via Urban Institute · SY 2021–22

Who goes here

Free or reduced lunch
38.5%
Students qualifying for federal meal assistance. Shown separately, never in the score.

NCES Common Core of Data (CCD).

Compare nearby

Grade-compatible schools using the same rating model.
Public-school ratings. Grade-compatible schools within 5 miles, best rated first.
  1. 7.8Compare →
  2. 7.5Compare →
  3. 6.9Compare →
  4. Old Mill Middle Souththis school
    6.7
  5. 5.5Compare →
  6. 5.2Compare →
  7. 5.0Compare →
  8. 4.1Compare →
  9. 3.8Compare →
Eight grade-compatible schools using the same rating model sit within 5 miles, and three rate higher than Old Mill Middle South.Public-school ratings. Straight-line distance from this campus. Pins are locations, not attendance boundaries; verify the enrollment path with the district.

Distance is proximity only; it is not attendance eligibility.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

The record

What is on file, and where each number came from.

Questions families ask

What grades does Old Mill Middle South serve?

Old Mill Middle South serves students in grades 6th through 8th.

How many students attend Old Mill Middle South?

Old Mill Middle South has an enrollment of approximately 963 students.

What is the student-teacher ratio at Old Mill Middle South?

The student-teacher ratio at Old Mill Middle South is 13.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Old Mill Middle South rank in MD?

Old Mill Middle South ranks #588 of 1,363 schools in MD.

What is Old Mill Middle South's MySchoolScout rating?

Old Mill Middle South has a current MySchoolScout rating of 6.7 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Old Mill Middle South?

Based on loaded state assessment records, Old Mill Middle South has 44% math proficiency (multi-year average, 2009-2026) and 59% reading/ELA proficiency (multi-year average, 2009-2026).

Is Old Mill Middle South a charter school?

No, Old Mill Middle South is not a charter school. It is a traditional public school operated by the local school district.

Is Old Mill Middle South a Title I school?

No, Old Mill Middle South is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Old Mill Middle South?

38.5% of students at Old Mill Middle South qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

School facts

Grades
6th – 8th
Enrollment
963
Student-teacher ratio
13.2:1
Teachers (FTE)
73
Type
Regular
Title I
No
Setting
Large Suburb
County
Anne Arundel County
Rank in district
#46 of 123
Schools in district
126
District spending per student
$17,624
NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
7.2%
Census SAIPE · 2024
Area population (ZIP 21108)
17,894
Area average commute
26.9 min
Area median age
41.5

NCES Common Core of Data (CCD) (SY 2023–24).

Related reading

Data from NCES Common Core of Data, Maryland Dept. of Education, and U.S. Census ACS for the 2023–24 school year. Rankings computed by MySchoolScout. See all data sources.