Mark T. Sheehan High School

Public high school, grades 9 to 12 · Wallingford, Connecticut

Mark T. Sheehan High School in Wallingford, Connecticut enrolled 673 students in 2024-25 with 60.8 full-time teachers, 11.1 students per teacher against the Connecticut high-school median of 11.4. It was not a Title I school in 2021-22; it takes part in the National School Lunch Program (2024-25). On the state tests, 60-64% of its students tested were proficient in reading in 2021-22 and 30-34% proficient in math in 2022-23 (Connecticut: 50.5% and 41.2%). Its four-year graduation rate for the class of 2023 was 90-94% (Connecticut: 88.2%).

NCES Common Core of Data 2024-25 · Civil Rights Data Collection 2021-22 · Title I status CCD 2021-22 · method

Enrollment fell 7% from 2022-23 to 2024-25; full-time teachers fell 13%

722 students in 2022-23, 724 students in 2023-24, 673 students in 2024-25. Full-time teachers went from 69.7 to 60.8.

Students enrolled at Mark T. Sheehan High School by school year2022-23: 722, 2023-24: 724, 2024-25: 67302004006008002022-237222023-247242024-25673
Students enrolled at Mark T. Sheehan High School by school year2022-23: 722, 2023-24: 724, 2024-25: 67302004006008002022-237222023-247242024-25673
Students enrolled at Mark T. Sheehan High School by school year2022-23: 722, 2023-24: 724, 2024-25: 67302004006008002022-237222023-247242024-25673
Students enrolled at Mark T. Sheehan High School by school year2022-23: 722, 2023-24: 724, 2024-25: 67302004006008002022-237222023-247242024-25673
The numbers as a table
School yearStudentsTeachers (FTE)Per teacher
2022-2372269.710.4
2023-2472463.111.5
2024-2567360.811.1

11.1 students per teacher, a lower ratio than 61 of every 100 Connecticut high schools

Among the 197 Connecticut high schools that reported teachers for 2024-25 the median is 11.4; the national median for high schools is 14.5. A ratio counts every teacher, so it is not the size of a class.

Students per teacher, Connecticut high schools, 2024-25197 values from 3.4 to 23.0; This school 11.1; state median 11.4.2 more above 20.0 →05101520students per full-time teacherThis school 11.1state median 11.4U.S. 14.5
Students per teacher, Connecticut high schools, 2024-25197 values from 3.4 to 23.0; This school 11.1; state median 11.4.2 more above 20.0 →05101520students per full-time teacherThis school 11.1state median 11.4U.S. 14.5
Students per teacher, Connecticut high schools, 2024-25197 values from 3.4 to 23.0; This school 11.1; state median 11.4.2 more above 20.0 →05101520students per full-time teacherThis school 11.1state median 11.4U.S. 14.5
Students per teacher, Connecticut high schools, 2024-25197 values from 3.4 to 23.0; This school 11.1; state median 11.4.2 more above 20.0 →05101520students per full-time teacherThis school 11.1state median 11.4U.S. 14.5

Source: NCES Common Core of Data membership and staff files, 2022-23, 2023-24, 2024-25; the comparison counts schools with a 2024-25 teacher count and a ratio from 3 to 99 (lower values are reporting errors).

24 AP courses and one counselor per 188 students in 2021-22

In the 2021-22 civil rights collection Mark T. Sheehan High School enrolled 751 students and had 4.0 counselors (full-time equivalent); it reported 31 out-of-school suspensions that year.

  • Advanced Placement courses24
  • Gifted and talented programYes
  • Counselors (FTE)4.0, one per 188 of the 751 students enrolled in 2021-22
  • Out-of-school suspensions31
  • Chronically absent12.3% (2022-23)

Who attends

64.9% of students were White, 21.5% Hispanic, 6.4% Asian in 2024-25.

  1. White64.9%
  2. Hispanic21.5%
  3. Asian6.4%
  4. Two or more races4.5%
  5. Black2.4%
  6. American Indian0.1%
  7. Pacific Islander0.1%

Source: U.S. Department of Education, Civil Rights Data Collection 2021-22; chronic absenteeism from EDFacts 2022-23; every count and the counselor ratio are for that school year. Who attends: NCES Common Core of Data 2024-25, membership by race and ethnicity.

State test results, 2021-22 and 2022-23

The students tested at Mark T. Sheehan High School scored proficient or above: 60-64% in reading in 2021-22 and 30-34% in math in 2022-23, against 50.5% in reading in 2021-22 and 41.2% in math in 2022-23 across Connecticut. Each state writes its own test and sets its own proficiency bar, so compare these within Connecticut, not across states. ED Data Express holds no district results after 2021-22, so the district column gives its 2021-22 figure.

Students proficient or above, 2021-22 and 2022-23
Subject and yearThis schoolIts districtConnecticut
Reading and language arts, 2021-2260‑64%53%50.5%
Math, 2022-2330‑34%38% (2021-22)41.2%

Source: U.S. Department of Education, EDFacts state assessment results 2021-22 and 2022-23, all students, from ED Data Express (2021-22 through the Data Rescue Project archive); for 2022-23 ED published math by school and reading only by state: ED shows school and district results as ranges (for example 20-24%) to protect small groups.

Graduation rate, class of 2023

90-94% of the 196 students in Mark T. Sheehan High School's class of 2023 graduated within four years, against 88.2% across Connecticut. The four-year rate follows the students who started ninth grade in fall 2019, adjusted for those who moved in or out, and counts those who earned a regular diploma by 2023. Every state computes it the same way under federal law, though each sets its own diploma requirements.

Four-year adjusted-cohort graduation rate, class of 2023
This schoolIts districtConnecticut
Four-year graduation rate90‑94%91%88.2%
Students in the class19644040,732

Source: U.S. Department of Education, EDFacts four-year adjusted-cohort graduation rates 2022-23, all students, from ED Data Express: ED shows school and district rates as ranges (for example 90-94%) and leaves out small classes.

High schools in Wallingford

2 public high schools in Wallingford report 2024-25 enrollment; Mark T. Sheehan High School is number 2 by size.

SchoolStudentsPer teacherFree lunch
Lyman Hall High School93610.529.3%
Mark T. Sheehan High School67311.125.3%

All public schools in Wallingford →

Source: NCES Common Core of Data 2024-25.

What to look at next about Mark T. Sheehan High School

  1. H. C. Wilcox Technical High SchoolThe nearest public high school, 3.0 miles away: 753 students, 11.8 per teacher (2024-25).3.0 mi
  2. Orville H. Platt High SchoolThe next nearest public high school, 3.4 miles away: 1,191 students, 17.4 per teacher (2024-25).3.4 mi
  3. Compare Mark T. Sheehan High School with H. C. Wilcox Technical High SchoolStudents, teachers, meals, test results and who attends, side by side.
  4. How much Wallingford Public Schools spends per student$25,569 per student on current operations in fiscal year 2022-23 (U.S. $16,260), with its revenue sources and teacher pay.$25,569
  5. The largest public schools in ConnecticutMark T. Sheehan High School is the number 101 by size of 199 Connecticut high schools open in 2024-25.#101 of 199
  6. Connecticut schools by students per teacher11.1 students per teacher here against the Connecticut median of 11.4 for high schools.11.1:1
  7. Find the school district for an addressA home's district, not its city, decides which public schools it can enroll in.

Source: NCES Common Core of Data 2024-25 (locations, enrollment, teachers); NCES F-33 finance survey, fiscal year 2022-23. Distances are straight lines between the schools' NCES coordinates, not travel routes.

Questions about Mark T. Sheehan High School

  1. How many students attend Mark T. Sheehan High School?
    673 in the 2024-25 school year, according to the NCES Common Core of Data; 722 in 2022-23. It is a high school in Wallingford, CT.
  2. What is the student-teacher ratio at Mark T. Sheehan High School?
    11.1 students per full-time teacher (2024-25); the Connecticut median for high schools is 11.4. A ratio counts every teacher, so it is not the size of a class.
  3. Is Mark T. Sheehan High School a Title I school?
    Mark T. Sheehan High School was not a Title I school in 2021-22, the last year NCES published school Title I status.
  4. How do students at Mark T. Sheehan High School do on state tests?
    The students tested at Mark T. Sheehan High School scored proficient or above: 60-64% in reading in 2021-22 and 30-34% in math in 2022-23, against 50.5% in reading in 2021-22 and 41.2% in math in 2022-23 across Connecticut. Connecticut's own test sets what proficient means, so results compare within the state, not across states. Source: U.S. Department of Education, EDFacts state assessment results, 2021-22 and 2022-23; ED publishes school results as ranges to protect small groups.
  5. What is the graduation rate at Mark T. Sheehan High School?
    90-94% of the 196 students in Mark T. Sheehan High School's class of 2023 graduated within four years, against 88.2% across Connecticut. The rate counts the students who started ninth grade in fall 2019, adjusted for those who moved in or out, and the share of them with a regular diploma by 2023. Source: U.S. Department of Education, EDFacts four-year adjusted-cohort graduation rates, 2022-23; ED publishes school rates as ranges to protect small groups.
  6. What district is Mark T. Sheehan High School in?
    Wallingford Public Schools, NCES district ID 0904740. The first seven digits of the school's NCES ID 090474000956 are the district's.

Reading these figures: how to choose a school district, what Title I means and what an absenteeism rate means. They are for information and are not a substitute for the school's or district's own records.

Sources

Every federal file behind this record
  • NCES Common Core of Data, 2024-25: directory, membership, staff and lunch files. nces.ed.gov
  • NCES Common Core of Data, 2021-22 school characteristics: Title I status. nces.ed.gov
  • Civil Rights Data Collection, 2021-22: AP courses, gifted programs, counselors, discipline. civilrightsdata.ed.gov
  • EDFacts, 2022-23: chronic absenteeism. ed.gov
  • EDFacts state assessment results, 2021-22 and 2022-23: reading and math proficiency for the school, its district and its state (ED Data Express). eddataexpress.ed.gov
  • EDFacts four-year adjusted-cohort graduation rates, 2022-23: the class of 2023 for the school, its district and its state (ED Data Express). eddataexpress.ed.gov
  • NCES F-33 School District Finance Survey, fiscal year 2022-23: district spending and revenue. nces.ed.gov
  • U.S. Census Bureau geocoder and TIGER school districts: the district boundary used by the district finder. census.gov

Source: NCES Common Core of Data Directory, membership, staff and lunch files · 2024-25

Source: Civil Rights Data Collection School-level files (AP, gifted, counselors, discipline) · 2021-22

District spending on the district page is from the NCES F-33 finance survey, fiscal year 2022-23.

Compiled from official source data by .