Mark T. Sheehan High School (Wallingford School District SCH DIST.), Connecticut - School Profile in 2023-2024 School Year

Updated on August 8, 2025.

Mark T. Sheehan High School is a High in Wallingford, CT. It currently serves 724 students (grades 09-12). The school is part of the Wallingford School District School District.

Below, we provide details about the school including the population per grade, the racial demography of the student population, the racial demography of the student population per gender/sex, and the racial demography per grade level.

You can see similar information for other schools in Wallingford School District School District and all schools in Connecticut.

Other Details

School Type: Regular School

School Level: High

Number of Students:724

Number of Teachers: 63

Student/Teacher Ratio: 11.47

Location Info

Location: 142 Hope Hill Road, Wallingford, CT 06492

Mailing Address: 142 Hope Hill Road, Wallingford, CT 06492

Phone: (203)294-5900

Website: http://Public Schools Wallingford School District 1486211 Mark T. Sheehan High School 142 Hope Hill

Data Source: NCES.

Student Population Per Grade

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Grade	Population
Grade 10	180
Grade 11	177
Grade 12	178
Grade 9	189

Gender/Sex of Mark T. Sheehan High School Student Population

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Gender	Population	Percent of Population (%)
Male	364	50.28
Female	359	49.59

Race/Ethnicity Demography of Mark T. Sheehan High School Student Population

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Race/Ethnicity	Population	Percent of Population (%)
American Indian or Alaska Native	2	0.28
Asian	43	5.94
Black or African American	19	2.62
Hispanic/Latino	153	21.13
Native Hawaiian or Other Pacific Islander	2	0.28
Two or more races	33	4.56
White	471	65.06

Male - Race/Ethnicity Demography of Student Population

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Race/Ethnicity	Population	Percent of Population (%)
American Indian or Alaska Native	2	0.55
Asian	17	4.67
Black or African American	11	3.02
Hispanic/Latino	85	23.35
Native Hawaiian or Other Pacific Islander	2	0.55
Two or more races	19	5.22
White	228	62.64

Female - Race/Ethnicity Demography of Student Population

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Race/Ethnicity	Population	Percent of Population (%)
Asian	26	7.24
Black or African American	8	2.23
Hispanic/Latino	68	18.94
Two or more races	14	3.90
White	243	67.69

Race Demography Per Grade

The tables below shows the Race/Ethnicity of the student population per grade.

Grade 10 - Race/Ethnicity of Both Genders

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Race/Ethnicity	Population	Percent of Population (%)
Asian	12	6.67
Black or African American	3	1.67
Hispanic/Latino	40	22.22
Two or more races	9	5.00
White	116	64.44

Grade 11 - Race/Ethnicity of Both Genders

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Race/Ethnicity	Population	Percent of Population (%)
American Indian or Alaska Native	2	1.13
Asian	12	6.78
Black or African American	5	2.83
Hispanic/Latino	41	23.16
Two or more races	3	1.70
White	114	64.41

Grade 12 - Race/Ethnicity of Both Genders

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Race/Ethnicity	Population	Percent of Population (%)
Asian	8	4.49
Black or African American	7	3.93
Hispanic/Latino	36	20.23
Native Hawaiian or Other Pacific Islander	1	0.56
Two or more races	9	5.06
White	116	65.17

Grade 9 - Race/Ethnicity of Both Genders

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Race/Ethnicity	Population	Percent of Population (%)
Asian	11	5.82
Black or African American	4	2.12
Hispanic/Latino	36	19.05
Native Hawaiian or Other Pacific Islander	1	0.53
Two or more races	12	6.35
White	125	66.14