Enrollment
365
Elementary
DISTRICT 312 · STATE 378
SCHOOL COMMUNITY·BRANFORD SCHOOL DISTRICT·NCES 090042000043
Mary R. Tisko School
118 Damascus Rd., Branford, CT 06405 · (203) 483-1826 · South Central Connecticut Planning Region
GRADES PK–04ELEMENTARY21-SUBURBREGULAR SCHOOL365 STUDENTS
B+
allk12 Grade
Scored higher than 70% of Connecticut public elementary schools
- B+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 Connecticut public elementary schools
Student : Teacher
11.8:1
31 FTE teachers
DISTRICT 10.3:1 · STATE 12.6:1
Free / Reduced Lunch
18%
65 students
DISTRICT 38% · STATE 44%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Pre-K | 34 | 9% |
| Kindergarten | 67 | 18% |
| Grade 1 | 65 | 18% |
| Grade 2 | 72 | 20% |
| Grade 3 | 61 | 17% |
| Grade 4 | 66 | 18% |
This year's kindergarten class (67) is about the same size as its 4th grade class (66).
Student demographics
31%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 52% · STATE 67% · 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
School pathway
Students here typically continue to
Based on grade levels within Branford School District. Attendance zones can vary; confirm enrollment with the district.
Test scores
CT Smarter Balanced 2024-25 . % Met or Exceeded StandardEnglish Language Arts
63.8%
CT avg 50.5%
Math
69.3%
CT avg 45.9%
What this means: On the CT Smarter Balanced, Connecticut's statewide test, about 64 of every 100 students at this school read and write at grade level and about 69 of 100 do math at grade level. Across all Connecticut schools, those numbers are about 51 and 46.
Source: CT Smarter Balanced. All students, all grades. See all years and grades →
Schools most like Mary R. Tisko School
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Mary R. Tisko School this school | 365 | 17.8% | N/A |
| Great Oak Elementary School Oxford | 369 | 18.2% | N/A |
| Mitchell Elementary School Woodbury | 328 | 19.5% | N/A |
| Harwinton Consolidated School Hawrinton | 374 | 20.9% | N/A |
| Hebron Elementary School Hebron | 364 | 16.8% | N/A |
| Sandy Hook Elementary School Sandy Hook | 349 | 18.1% | N/A |
Matched among Connecticut elementary 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 Mary R. Tisko School ranks
Among elementary schools| Measure | This school | In Connecticut | In South Central Connecticut Planning Region |
|---|---|---|---|
| Math proficiency ranked highest first | 69.3% | #137 of 522 | #18 of 87 |
| Reading proficiency ranked highest first | 63.8% | #177 of 519 | #23 of 86 |
| Enrollment ranked largest first | 365 | #311 of 613 | #46 of 96 |
| Students per teacher ranked fewest first | 11.8:1 | #211 of 558 | #41 of 91 |
| Diversity index ranked most diverse first | 31.3% | #496 of 560 | #84 of 92 |
| Free and reduced lunch ranked highest share first | 17.8% | #486 of 594 | #84 of 96 |
| Enrollment change since 2017-18 ranked steepest decline first | -5.4% | #296 of 378 | #50 of 59 |
Ranked against other public elementary 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
365
+35 (+11%) vs 2020
+75% since 1990-91, when it was 208
Student : Teacher
11.8:1
was 11.4:1
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 | 365 | 30.8 | 11.8:1 | 18% (65) |
| 2023-24 | 345 | 30.1 | 11.4:1 | 20% (69) |
| 2022-23 | 352 | 29.7 | 11.8:1 | 20% (69) |
| 2020-21 | 330 | 29 | 11.4:1 | 23% (77) |
| 2017-18 | 386 | 28.1 | 13.7:1 | 19% (75) |
| 2015-16 | 366 | 25 | 14.6:1 | 16% (58) |
| 2010-11 | 426 | 32 | 13.3:1 | 13% (54) |
| 2000-01 | 490 | 31 | 15.8:1 | N/A |
| 1990-91 | 208 | 8 | 26.0:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Mary R. Tisko School.
Since 2017-18: students down 5% (386 to 365); teachers up 10% (28.1 to 30.8).
About Mary R. Tisko School
Mary R. Tisko School runs as a mid-sized elementary school in Branford, Connecticut. It reported 365 students in pre-K through 4 in 2024-25.
Across its 5 schools, Branford School District enrolls 2,448 students. Mary R. Tisko School is one of those schools.
Roughly 82% of students at Mary R. Tisko School are White. Other groups make up 12% Hispanic and 4% multiracial. County-wide, 62% of South Central Connecticut Planning Region residents are White. Measured by the diversity index, the student body scores 31%.
There are about 11.8 students for every full-time-equivalent teacher at Mary R. Tisko School, which has 30.8. By comparison, the average for elementary schools in Connecticut is 12.6:1. Free or reduced-price lunch eligibility at Mary R. Tisko School is about 18%. The rate at public schools in South Central Connecticut Planning Region averages 51%, higher than here.
Among Connecticut public elementary schools, Mary R. Tisko School outscored 70%, which works out to a B+ on the allk12 Grade.
American Community Survey estimates for South Central Connecticut Planning Region show that the median household earns about $88,197 a year, about 42% of adults have at least a bachelor's degree, and the poverty rate is about 7%. Across South Central Connecticut Planning Region, 152 public schools serve about 72,909 students.
The closest school to Mary R. Tisko School is Francis Walsh Intermediate School, located about 0.4 miles away. Mary R. Tisko School is one of several public schools in the area, with at least 8 others within five miles.
In the federal locale system, Mary R. Tisko School is coded Suburb: Large, for schools in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
Enrollment increased 11% over 4 years, reaching 365 in 2024-25.
Use the discussion section to ask about special education services, counseling, and support programs at Mary R. Tisko School. You can also rate the school on this page.
South Central Connecticut Planning Region at a glance
View full county profilePopulation
570,598
Census ACS
Median income
$88,197
Household, ACS
Bachelor's+
42%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
152
72,909 students
Quick facts
Related schools
Other schools in Branford School District
- Francis Walsh Intermediate SchoolMiddle · 775 students
- Branford High SchoolHigh · 738 students
- Mary T. Murphy SchoolElementary · 318 students
- John B. Sliney SchoolElementary · 252 students
Other schools in Branford
- Francis Walsh Intermediate SchoolMiddle · 775 students
- Branford High SchoolHigh · 738 students
- Mary T. Murphy SchoolElementary · 318 students
- John B. Sliney SchoolElementary · 252 students
Nearby schools
- Francis Walsh Intermediate School0.4 mi · 775
- Branford High School0.7 mi · 738
- John B. Sliney School1.2 mi · 252
- Mary T. Murphy School1.8 mi · 318
- Jerome Harrison School3.2 mi · 385
- North Branford Intermediate School3.5 mi · 352
Frequently asked questions
About Mary R. Tisko SchoolHow many students attend Mary R. Tisko School?
Mary R. Tisko School enrolls approximately 365 students in grades PK-04.
Is Mary R. Tisko School an elementary, middle, or high school?
Mary R. Tisko School is an elementary school covering grades PK-04.
How many teachers does Mary R. Tisko School have?
Mary R. Tisko School employs 31 FTE teachers, for a student-to-teacher ratio of 11.8:1.
What is the student diversity at Mary R. Tisko School?
Student demographics at Mary R. Tisko School are roughly 82% White, 12% Hispanic, 1% Black, 1% Asian, 4% Two or more.
What district is Mary R. Tisko School in?
Mary R. Tisko School is part of Branford School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.