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SCHOOL COMMUNITY·GREEN TECH HIGH CHARTER SCHOOL·NCES 360094505946

GREEN TECH HIGH CHARTER SCHOOL

99 SLINGERLAND ST, ALBANY, NY 12202 · (518) 694-3400 · Albany County
GRADES 06–12HIGH12-CITYCHARTERTITLE IREGULAR SCHOOL450 STUDENTS
F
allk12 Grade
Scored higher than 4% of New York public high schools
  • DTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • FBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • ·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 New York public high schools

Enrollment
450
High
STATE 668
Student : Teacher
12.7:1
36 FTE teachers
STATE 11.0:1
Free / Reduced Lunch
57%
257 students
STATE 58%
Community
1
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

GradeStudentsShare
Grade 64811%
Grade 74610%
Grade 84911%
Grade 99120%
Grade 108118%
Grade 117517%
Grade 126013%
Student demographics
30%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
STATE 72% · US 70%
White
31%
STATE 39% · US 43%
Hispanic
4510%
STATE 31% · US 30%
Black
37383%
STATE 16% · US 15%
Asian
41%
STATE 10% · US 6%
Two+
256%
STATE 4% · US 5%
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
Male
450100%

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Test scores

NYS Assessments 2024-25 . % Proficient (Level 3 + Level 4)
English Language Arts
51.5%
NY avg 58.3% . +5.3pp since 2023
Math
12.9%
NY avg 57.4% . +0.9pp since 2023

What this means: On the NYS Assessments, New York's statewide test, about 51 of every 100 students at this school read and write at grade level and about 13 of 100 do math at grade level. Across all New York schools, those numbers are about 58 and 57. Reading and writing scores are up about 5 points since 2023, while math scores have held steady.

NYS Assessments results by year

School yearEnglish Language ArtsMath
2024-2551.5%12.9%
2023-2446.2%12.0%
% Proficient (Level 3 + Level 4), all students and all tested grades.
Source: NYS Assessments. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
UNDERPERFORMING
Bottom 10% of NY schools after controlling for student poverty
Actual proficiency
32.5%
composite math + reading, all grades
Predicted
54.0%
based on NY schools with similar FRL share
Beats by
-21.5pp
below demographic expectation

What this means: About 33% of students here test proficient in math and reading, below the roughly 54% typical for New York schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like GREEN TECH HIGH CHARTER SCHOOL

GREEN TECH HIGH CHARTER SCHOOL's state test result (32.5% proficient) is higher than 1 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
GREEN TECH HIGH CHARTER SCHOOL this school45057.1%32.5%
UNIVERSITY PREPARATORY CHARTER SCHOOL FOR YOUNG MEN
ROCHESTER
51461.1%23.3%
DENZEL WASHINGTON SCHOOL-ARTS
MOUNT VERNON
42767.4%43.3%
CAPITAL PREPARATORY BRONX CHARTER SCHOOL
BRONX
48871.1%56.0%
PREPARATORY ACADEMY FOR WRITERS: A COLLEGE BOARD SCHOOL
SPRINGFIELD GARDENS
52169.5%61.0%
UNITED CHARTER HIGH SCHOOL FOR ADVANCED MATH AND SCIENCE IV
JAMAICA
36374.4%54.3%
Matched among New York 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 GREEN TECH HIGH CHARTER SCHOOL ranks

Among high schools
MeasureThis schoolIn New YorkIn Albany County
State test proficiency
ranked highest first
32.5%#1,052 of 1,135#10 of 12
Math proficiency
ranked highest first
12.9%#1,079 of 1,109
no change
#12 of 12
no change
Reading proficiency
ranked highest first
51.5%#934 of 1,135
▲ 94
#10 of 12
no change
Enrollment
ranked largest first
450#617 of 1,216#9 of 13
Students per teacher
ranked fewest first
12.7:1#796 of 1,058#8 of 11
Diversity index
ranked most diverse first
30.0%#789 of 1,070#11 of 13
Free and reduced lunch
ranked highest share first
57.1%#621 of 1,167#5 of 12
Enrollment change since 2017-18
ranked fastest growth first
+26.4%#57 of 339#2 of 7
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 2024-25
Enrollment
450
+54 (+14%) vs 2020
+71% since 2010-11, when it was 263
Student : Teacher
12.7:1
was 11.0:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2545035.512.7:157% (257)
2023-244282715.8:192% (394)
2022-2341419.521.2:193% (383)
2020-213963611.0:168% (271)
2017-183563310.8:168% (241)
2015-163492712.9:1N/A
2010-112631418.8:177% (203)
Source: NCES Common Core of Data. Rows are the federal collections on file for GREEN TECH HIGH CHARTER SCHOOL.

About GREEN TECH HIGH CHARTER SCHOOL

GREEN TECH HIGH CHARTER SCHOOL is a small high school. Its address is in ALBANY, New York. There are 450 students enrolled, covering grades 6 through 12. That puts enrollment 33% below the 668-student average for high schools in New York.

GREEN TECH HIGH CHARTER SCHOOL is its own local education agency in federal data.

Black students are 83% of those enrolled at GREEN TECH HIGH CHARTER SCHOOL. The remaining shares are 10% Hispanic and 6% multiracial. Census estimates put the Black share of Albany County's population at about 12%. On a 0 to 100 scale, the school's diversity index is 30, compared with 70 nationally.

Teacher count: 35.5 full-time equivalents. Student-to-teacher ratio: 12.7:1. Across high schools in New York, the average ratio is 11.0:1. Roughly 57% of students come from households that qualify for free or reduced-price lunch. The average for public schools in Albany County is 45%.

GREEN TECH HIGH CHARTER SCHOOL holds an F allk12 Grade, placing it above 4% of New York public high schools.

On BeatsExpectations, which compares test results with what a school's student poverty level would predict, GREEN TECH HIGH CHARTER SCHOOL ranks in the bottom 10% in New York. Its average proficiency rate across its state test results is 32.5%, against a prediction of 54.0%.

In the wider Albany County area, median household income comes to about $85,333, roughly 46% of adults have a four-year degree or more, and the share of residents below the poverty line is 8%. Albany County counts 75 public schools with about 39,946 students.

The closest school to GREEN TECH HIGH CHARTER SCHOOL is THOMAS S O'BRIEN ACADEMY OF SCIENCE & TECHNOLOGY, located about 0.3 miles away. GREEN TECH HIGH CHARTER SCHOOL is one of several public schools in the area, with at least 8 others within five miles. Nearby schools average 34.1% on proficiency, and GREEN TECH HIGH CHARTER SCHOOL is below that at 32.5%.

The school's federal locale classification is City: Mid-size. Federal records list GREEN TECH HIGH CHARTER SCHOOL as a charter school.

Enrollment increased 14% over 4 years, reaching 450 in 2024-25. Staffing shifted too: the ratio moved from 11.0:1 to 12.7:1.

On allk12, people connected to GREEN TECH HIGH CHARTER SCHOOL can post about special education services, counseling, and support programs. Members of the school community can share what they know.

Albany County at a glance

View full county profile
Population
317,018
Census ACS
Median income
$85,333
Household, ACS
Bachelor's+
46%
Adults 25+
Poverty rate
8%
Below federal line
Schools in county
75
39,946 students

Quick facts

School name
GREEN TECH HIGH CHARTER SCHOOL
District
GREEN TECH HIGH CHARTER SCHOOL
Address
99 SLINGERLAND ST, ALBANY, NY 12202
Phone
(518) 694-3400
County
Albany County
Level
High
Grade range
06–12
Total enrollment
450
Teachers (FTE)
36
Student–teacher ratio
12.7:1
Free and reduced lunch
257 (57%)
Locale
12-City: Mid-size
NCES ID
360094505946
Charter school
Yes
Virtual school
No

Related schools

Other schools in ALBANY
Nearby schools

Frequently asked questions

About GREEN TECH HIGH CHARTER SCHOOL
How many students attend GREEN TECH HIGH CHARTER SCHOOL?
GREEN TECH HIGH CHARTER SCHOOL enrolls approximately 450 students in grades 06-12.
Is GREEN TECH HIGH CHARTER SCHOOL an elementary, middle, or high school?
GREEN TECH HIGH CHARTER SCHOOL is a high school covering grades 06-12.
What is the student-teacher ratio at GREEN TECH HIGH CHARTER SCHOOL?
The student-to-teacher ratio at GREEN TECH HIGH CHARTER SCHOOL is approximately 12.7:1 (36 FTE teachers).
What is the racial breakdown of students at GREEN TECH HIGH CHARTER SCHOOL?
At GREEN TECH HIGH CHARTER SCHOOL, the student body is approximately 1% White, 10% Hispanic, 83% Black, 1% Asian, 6% Two or more.
Who oversees GREEN TECH HIGH CHARTER SCHOOL?
GREEN TECH HIGH CHARTER SCHOOL is overseen by GREEN TECH HIGH CHARTER SCHOOL in Albany County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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