Enrollment
379
High
DISTRICT 714 · STATE 448
SCHOOL COMMUNITY·PORTLAND PUBLIC SCHOOLS·NCES 230993000603
Casco Bay High School
196 Allen Avenue, Portland, ME 04103 · (207) 874-8160 · Cumberland County
GRADES 09–12HIGH13-CITYTITLE IREGULAR SCHOOL379 STUDENTS
A-
allk12 Grade
Scored higher than 75% of Maine public high schools
- A-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- ·Beats expectations Not available for this school, so the grade uses the other parts.
- ·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 Maine public high schools
Student : Teacher
13.2:1
29 FTE teachers
DISTRICT 13.3:1 · STATE 11.9:1
Free / Reduced Lunch
54%
204 students
DISTRICT 53% · STATE 48%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 97 | 26% |
| Grade 10 | 93 | 25% |
| Grade 11 | 93 | 25% |
| Grade 12 | 96 | 25% |
Student demographics
64%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 66% · STATE 28% · 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
MEA 2024-25 . % At or Above State ExpectationsEnglish Language Arts
58.6%
ME avg 64.1%
Math
54.7%
ME avg 50.6%
What this means: On the MEA, Maine's statewide test, about 59 of every 100 students at this school read and write at grade level and about 55 of 100 do math at grade level. Across all Maine schools, those numbers are about 64 and 51.
Source: MEA. All students, all grades. See all years and grades →
Schools most like Casco Bay High School
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Casco Bay High School this school | 379 | 53.8% | N/A |
| Westbrook High School Westbrook | 719 | 63.1% | N/A |
| Portland High School Portland | 912 | 53.1% | N/A |
| Deering High School Portland | 850 | 65.8% | N/A |
| South Portland High School South Portland | 928 | 42.8% | N/A |
| Biddeford High School Biddeford | 894 | 61.5% | N/A |
Matched among Maine high 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 Casco Bay High School ranks
Among high schools| Measure | This school | In Maine | In Cumberland County |
|---|---|---|---|
| Math proficiency ranked highest first | 54.7% | #21 of 73 | #9 of 17 |
| Reading proficiency ranked highest first | 58.6% | #39 of 67 | #8 of 16 |
| Enrollment ranked largest first | 379 | #60 of 114 | #18 of 19 |
| Students per teacher ranked fewest first | 13.2:1 | #58 of 86 | #16 of 18 |
| Diversity index ranked most diverse first | 64.1% | #3 of 86 | #3 of 18 |
| Free and reduced lunch ranked highest share first | 53.8% | #34 of 106 | #4 of 18 |
| Enrollment change since 2017-18 ranked steepest decline first | -1.8% | #45 of 51 | #12 of 14 |
Ranked against other public high 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
379
-16 (-4%) vs 2020
+37% since 2010-11, when it was 276
Student : Teacher
13.2:1
was 15.2:1
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 | 379 | 28.8 | 13.2:1 | 54% (204) |
| 2023-24 | 381 | 28.2 | 13.5:1 | 42% (160) |
| 2022-23 | 382 | 29.8 | 12.8:1 | 34% (130) |
| 2020-21 | 395 | 26 | 15.2:1 | 44% (175) |
| 2017-18 | 386 | 27.8 | 13.9:1 | 46% (177) |
| 2015-16 | 389 | 27 | 14.4:1 | 46% (180) |
| 2010-11 | 276 | 19 | 14.5:1 | 41% (114) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Casco Bay High School.
Since 2017-18: students down 2% (386 to 379); teachers up 4% (27.8 to 28.8).
About Casco Bay High School
Casco Bay High School is a low-enrollment high school with an address in Portland, Maine. It is open to students in grades 9 through 12 and enrolls 379 students.
Portland Public Schools runs Casco Bay High School along with 15 other schools, enrolling 6,548 students in total.
About 51% of the student body at Casco Bay High School is White. Other groups include 28% Black, 8% Hispanic, 6% Asian, and 5% multiracial. By comparison, Cumberland County residents are about 86% White. A diversity index of 64% means there is a 64% chance two randomly chosen students at Casco Bay High School are from different groups.
Its ratio of 13.2:1 is based on 28.8 full-time-equivalent teachers. Statewide, high schools in Maine average 11.9:1. The share of students eligible for free or reduced-price lunch is 54%. Across public schools in Cumberland County, the average is 34%.
Casco Bay High School earns an A- on the allk12 Grade, which blends test scores, results against poverty-based expectations, and the three-year trend. It scored higher than 75% of Maine public high schools.
The school is in Cumberland County, where median household income comes to about $95,677, roughly 53% of adults have a four-year degree or more, and about 4% of residents live below the federal poverty line. Cumberland County's 99 public schools enroll about 38,224 students and include Casco Bay High School.
Lyman Moore Middle School is the nearest public school to Casco Bay High School, about 0.7 miles away. Within five miles of Casco Bay High School, there are at least 8 other public schools.
The school's locale code, City: Small, means it is inside a principal city with a population under 100,000.
Over the 4 years from 2020-21 to 2024-25, enrollment fell 4%. The ratio was 15.2:1 in 2020-21 and 13.2:1 in 2024-25.
People can post here about fundraisers, report cards, and school supplies and other school topics. Members of the school community can share what they know.
Cumberland County at a glance
View full county profilePopulation
308,827
Census ACS
Median income
$95,677
Household, ACS
Bachelor's+
53%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
99
38,224 students
Quick facts
Related schools
Other schools in Portland Public Schools
- Portland High SchoolHigh · 912 students
- Deering High SchoolHigh · 850 students
- Harrison Lyseth Elem SchoolElementary · 489 students
- Amanda C Rowe SchoolElementary · 470 students
- Lyman Moore Middle SchoolMiddle · 470 students
- Howard C Reiche Community SchElementary · 467 students
Other schools in Portland
- Portland High SchoolHigh · 912 students
- Deering High SchoolHigh · 850 students
- Harrison Lyseth Elem SchoolElementary · 489 students
- Amanda C Rowe SchoolElementary · 470 students
- Lyman Moore Middle SchoolMiddle · 470 students
- Howard C Reiche Community SchElementary · 467 students
Nearby schools
- Lyman Moore Middle School0.7 mi · 470
- Gerald E Talbot Community School0.8 mi · 394
- Harrison Lyseth Elem School0.8 mi · 489
- Lincoln Middle School1.5 mi · 382
- Ocean Avenue1.5 mi · 337
- Longfellow School-Portland1.7 mi · 263
Frequently asked questions
About Casco Bay High SchoolHow large is Casco Bay High School?
Casco Bay High School enrolls approximately 379 students in grades 09-12.
What age range does Casco Bay High School serve?
Casco Bay High School serves students from grade 09 through grade 12.
How many students per teacher at Casco Bay High School?
Approximately 13.2:1 students per teacher at Casco Bay High School.
How diverse is Casco Bay High School?
Casco Bay High School reports a student body of 51% White, 8% Hispanic, 28% Black, 6% Asian, 5% Two or more.
Who oversees Casco Bay High School?
Casco Bay High School is overseen by Portland Public Schools in Cumberland County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.