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SCHOOL COMMUNITY·ANSONIA SCHOOL DISTRICT·NCES 090006010002

Ansonia High School

20 Pulaski Hwy., Ansonia, CT 06401 · (203) 736-5060 · Naugatuck Valley Planning Region
GRADES 09–12HIGH21-SUBURBTITLE IREGULAR SCHOOL617 STUDENTS
Enrollment
617
High
DISTRICT 586 · STATE 788
Student : Teacher
12.8:1
48 FTE teachers
DISTRICT 14.6:1 · STATE 12.3:1
Free / Reduced Lunch
59%
366 students
DISTRICT 64% · STATE 44%
Community
2
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 9
172
Grade 10
150
Grade 11
170
Grade 12
125
Student demographics
White
15725%
DISTRICT 22% · STATE 46%
Hispanic
29047%
DISTRICT 49% · STATE 32%
Black
11919%
DISTRICT 22% · STATE 12%
Asian
173%
DISTRICT 2% · STATE 5%
Two+
335%
DISTRICT 5% · STATE 5%
Native American
10%
DISTRICT 0% · STATE 0%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
30650%
Female
31150%

Discussions

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7-year change

SY 2017-18 vs SY 2024-25
Enrollment
617
+50 (+9%) vs 2017
Student : Teacher
12.8:1
was 11.7:1
% White
25%
was 40%
% Hispanic
47%
was 32%
% Black
19%
was 21%
% Asian
3%
was 2%
Source: NCES Common Core of Data

About Ansonia High School

Located at 20 Pulaski Hwy., in Ansonia, Connecticut, Ansonia High School is an intimate 9-12 campus that serves 617 students (grades 9 through 12), overseen by Ansonia School District. Compared to the state average of about 788 students per school, that is 22% leaner than typical.

Within Ansonia School District, which oversees 4 schools and 2,343 students, Ansonia High School is one campus in the system.

On demographics, Ansonia High School lists that the most-represented group is Hispanic (47%), with the rest of the student body spread across multiple groups. Beyond that, the school logs 25% White, 19% Black, 5% multiracial, 3% Asian. The wider county runs roughly 20% Hispanic, putting the school's mix meaningfully more Hispanic than the area baseline.

Looking at school resources, On paper, Ansonia High School has 48 full-time-equivalent teachers, translating to a class-load average of around 12.8:1. The state averages about 12.3:1, putting this campus right in line with peers. Around 59% of the student body qualifies for free or reduced-price meals, a number frequently used as a low-income enrollment indicator.

Zooming out to the county, ACS estimates for Naugatuck Valley Planning Region put the typical household earns roughly $86,191 per year, about 34% of the adult population holds a bachelor's degree or above, and the poverty rate sits near 9%. Ansonia High School is one of 121 public schools in Naugatuck Valley Planning Region (combined enrollment of about 59,861 students).

Prendergast School is the nearest neighboring public school, about 0.5 miles from this campus. 8 of the 8 nearest public schools sit inside a five-mile radius.

Geographically, the school is in a suburban area.

Looking at the recent track record. Ansonia High School's enrollment has edged up 9% since 2018, when it stood at 567 (now 617). The Hispanic share of enrollment edged up from 32% to 47% over that span. Class-load math has widened: from 11.7:1 in 2018 to 12.8:1 in 2025.

Inside the community feed, the feed for Ansonia High School typically covers enrollment questions, classroom assignments, and PTA news. Members of the school community can share what they know.

Naugatuck Valley Planning Region at a glance

View full county profile
Population
454,969
Census ACS
Median income
$86,191
Household, ACS
Bachelor's+
34%
Adults 25+
Poverty rate
9%
Below federal line
Schools in county
121
59,861 students

Quick facts

School name
Ansonia High School
District
Ansonia School District
Address
20 Pulaski Hwy., Ansonia, CT 06401
Phone
(203) 736-5060
County
Naugatuck Valley Planning Region
Level
High
Grade range
09–12
Total enrollment
617
Teachers (FTE)
48
Student–teacher ratio
12.8:1
Free/Reduced lunch
366 (59%)
Locale
21-Suburb: Large
NCES ID
090006010002
Charter school
No
Virtual school
No

Related schools

Other schools in Ansonia School District
Other schools in Ansonia
Nearby schools

Frequently asked questions

About Ansonia High School
What is the total enrollment at Ansonia High School?
Ansonia High School enrolls approximately 617 students in grades 09-12.
What age range does Ansonia High School serve?
Ansonia High School serves students from grade 09 through grade 12.
How many students per teacher at Ansonia High School?
Approximately 12.8:1 students per teacher at Ansonia High School.
What is the student diversity at Ansonia High School?
Student demographics at Ansonia High School are roughly 25% White, 47% Hispanic, 19% Black, 3% Asian, 5% Two or more.
Who oversees Ansonia High School?
Ansonia High School is overseen by Ansonia School District in Naugatuck Valley Planning Region.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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