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Ansonia High School

Public Grades 9-12

113^th

SchoolDigger Rank ?

of 141 Connecticut High Schools

Better than 20% of Connecticut high schools

Summary

Ansonia High School is a public high school in Ansonia, Connecticut, serving 593 students in grades 9-12. The school is part of the Ansonia School District, which is ranked 151 out of 156 districts in the state and has a 0-star rating from SchoolDigger. Ansonia High School has consistently ranked in the bottom half of Connecticut high schools, with a current ranking of 113 out of 141 schools and a 1-star rating.

Academically, Ansonia High School underperforms the state average. In the 2024-2025 school year, only 9.9% of 11th-grade students were proficient or better in SAT Math, compared to the state average of 31.1%. The school's proficiency rate in NGSS Science for 11th-grade students was 25.7%, compared to the state average of 47.7%. Ansonia High School's four-year graduation rate has fluctuated over the years, ranging from 78.9% to 88.9%, which is generally lower than the state average. Additionally, the school has a high chronic absenteeism rate, ranging from 17.7% to 22.3% in recent years, significantly higher than the state's average.

Compared to nearby schools, Ansonia High School generally underperforms. For instance, Engineering - Science University Magnet School, located just 5.72 miles away, consistently outperforms Ansonia High School in academic assessments and has a higher graduation rate. Despite Ansonia High School spending more per student ($19,054 in 2018-2019) compared to some nearby schools, such as Seymour High School ($15,998 in 2018-2019), the school's academic performance remains a concern, suggesting that funding alone may not be the primary driver of its challenges.

617

Students ?

12.8

Student/teacher ratio ?

$21,875

Per pupil spending ?

59.3%

Free/discounted lunch ?

20 Pulaski Hwy.
Ansonia, CT 06401

(203) 736-5060

District: Ansonia School District

Racial breakdown:

Hispanic:

47.0%

White:

25.4%

African American:

19.3%

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At a glance

▼ Ranking trend: Declining — 29th percentile in 2018 → 20th in 2025

Worth a look

!Test scores below the Connecticut average (18% vs 39% meeting standards)

!In the lower quartile statewide (20th percentile)

!Ranking has slipped — down 9 percentile points since 2018

Students meeting standards (2024-2025) ?

This school18%

District avg17%

Connecticut avg39%

113^th of 141

Connecticut public high schools ?

Bottom 20%▼ down 9 pts since 2018

From bottom 29% (2018) to bottom 20% (2025)

See the entire ranking list of Connecticut High Schools →

★★★★★

SchoolDigger rating ?

151^st of 156Ansonia School District among Connecticut districts

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	16.6	113 of 141	19.9%	★☆☆☆☆
2024	17.3	116 of 145	20.0%	★☆☆☆☆
2022	20.5	98 of 139	29.5%	★★☆☆☆
2021	30.6	139 of 200	30.5%	★★☆☆☆
2019	20.4	103 of 121	14.9%	★☆☆☆☆
2018	31.3	86 of 121	28.9%	★☆☆☆☆

African American

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	28.3	25 of 31	19.4%	★☆☆☆☆
2023	57.4	10 of 25	60.0%	★★★☆☆
2021	53.8	25 of 58	56.9%	★★★☆☆

Female

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	14.1	89 of 104	14.4%	★☆☆☆☆
2022	25.0	74 of 106	30.2%	★★☆☆☆
2021	36.5	112 of 189	40.7%	★★☆☆☆

Hispanic

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	33.9	41 of 63	34.9%	★★☆☆☆
2023	47.6	25 of 63	60.3%	★★★☆☆
2021	31.6	64 of 104	38.5%	★★☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	26.0	48 of 70	31.4%	★★☆☆☆
2024	27.3	48 of 65	26.2%	★☆☆☆☆
2023	30.8	43 of 70	38.6%	★★☆☆☆
2022	30.8	48 of 63	23.8%	★☆☆☆☆
2021	40.9	88 of 155	43.2%	★★☆☆☆
2019	31.0	23 of 37	37.8%	★★☆☆☆

Male

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	16.2	92 of 111	17.1%	★☆☆☆☆
2023	12.9	89 of 100	11.0%	★☆☆☆☆
2022	12.2	93 of 102	8.8%	☆☆☆☆☆
2021	22.1	145 of 182	20.3%	★☆☆☆☆

Special Education

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2021	36.2	114 of 175	34.9%	★★☆☆☆

White

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2021	42.8	89 of 155	42.6%	★★☆☆☆
2019	11.4	106 of 113	6.2%	☆☆☆☆☆
2018	18.3	93 of 105	11.4%	★☆☆☆☆

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

White (2021)43rd percentile+12 vs school

Hispanic (2025)35th percentile+15 vs school

Special Education (2021)35th percentile+4 vs school

Low Socio Economic Status (2025)31st percentile+12 vs school

African American (2025)19th percentile~ school

Male (2025)17th percentile-3 vs school

Female (2025)14th percentile-5 vs school

By subject vs Connecticut (2024-2025) ?

Science26%-22 vs state

Math10%-21 vs state

★

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Schools Near Ansonia High School

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				NGSS Science (2025)		SAT English Language Arts (2025)	SAT Math (2025)	SBAC English Language Arts (2025)			SBAC Mathematics (2025)			Per Pupil Expenditures (2025)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	NGSS Science 8th Grade	NGSS Science 11th Grade	SAT English Language Arts 11th Grade	SAT Math 11th Grade	SBAC English Language Arts 6th Grade	SBAC English Language Arts 7th Grade	SBAC English Language Arts 8th Grade	SBAC Mathematics 6th Grade	SBAC Mathematics 7th Grade	SBAC Mathematics 8th Grade	Total
Ansonia High School	Public	9-12	20 Pulaski Hwy.	Ansonia	06401	Naugatuck Valley Planning Region	Ansonia School District	No	No	No	No	(203) 736-5060	617	48	12.8	59.3%	157 (25.4%)	119 (19.3%)	290 (47.0%)	17 (2.8%)	1 (0.2%)	0 (0.0%)	33 (5.3%)	16.6	113^th of 141 public high schools	19.9%		17.3	116^th of 145 public high schools	20.0%	3		25.7		9.9							$21,875
Emmett O'Brien Technical High School	Public	9-12	141 Prindle Ave.	Ansonia	06401	Naugatuck Valley Planning Region	Connecticut Technical Education and Career System	No	No	No	No	(203) 732-1800	618	51	12.1	43.7%	275 (44.5%)	70 (11.3%)	230 (37.2%)	3 (0.5%)	2 (0.3%)	0 (0.0%)	35 (5.7%)								(n/a)				9.7							$29,511
Derby High School	Public	9-12	75 Chatfield Street	Derby	06418	Naugatuck Valley Planning Region	Derby School District	No	No	No	Yes	(203) 736-5032	360	37	9.7	53.6%	85 (23.6%)	83 (23.1%)	162 (45.0%)	9 (2.5%)	0 (0.0%)	0 (0.0%)	21 (5.8%)								(n/a)		25.8									$26,855
Shelton High School	Public	9-12	120 Meadow St.	Shelton	06484	Naugatuck Valley Planning Region	Shelton School District	No	No	No	Yes	(203) 922-3004	1,308	91	14.3	37.5%	706 (54.0%)	139 (10.6%)	336 (25.7%)	71 (5.4%)	0 (0.0%)	0 (0.0%)	55 (4.2%)								(n/a)											$19,606
Amity Regional High School	Public	9-12	25 Newton Rd.	Woodbridge	06525	South Central Connecticut Planning Region	Regional School District 05	No	No	No	Yes	(203) 397-4830	1,347	122	11.0	16.8%	885 (65.7%)	49 (3.6%)	151 (11.2%)	205 (15.2%)	3 (0.2%)	0 (0.0%)	51 (3.8%)	85.4	24^th of 141 public high schools	83.0%		76.6	34^th of 145 public high schools	76.6%	10		64.2	81.4	52.8							$23,412
Seymour High School	Public	9-12	2 Botsford Rd.	Seymour	06483	Naugatuck Valley Planning Region	Seymour School District	No	No	No	Yes	(203) 888-2561	604	51	11.8	50.8%	389 (64.4%)	48 (7.9%)	129 (21.4%)	18 (3.0%)	0 (0.0%)	0 (0.0%)	19 (3.1%)	43.2	67^th of 141 public high schools	52.5%		50.7	73^rd of 145 public high schools	49.7%	6		27.5	65.5	27.7							$19,894
Oxford High School	Public	9-12	61 Quaker Farms Rd.	Oxford	06478	Naugatuck Valley Planning Region	Oxford School District	No	No	No	No	(203) 888-2468	476	47	10.1	17.9%	377 (79.2%)	16 (3.4%)	60 (12.6%)	12 (2.5%)	1 (0.2%)	0 (0.0%)	10 (2.1%)								(n/a)			61.2								$26,459
Platt Technical High School	Public	9-12	600 Orange Ave.	Milford	06461	South Central Connecticut Planning Region	Connecticut Technical Education and Career System	No	No	No	No	(203) 783-5300	749	62	12.0	47.1%	247 (33.0%)	123 (16.4%)	332 (44.3%)	7 (0.9%)	0 (0.0%)	0 (0.0%)	38 (5.1%)	10.7	129^th of 141 public high schools	8.5%		12.8	122^nd of 145 public high schools	15.9%	7			35.7	4.1							$31,070
Common Ground High School	Public, Charter	9-12	358 Springside Ave.	New Haven	06515	South Central Connecticut Planning Region	Common Ground High School District	Yes	No	No	Yes	(203) 389-4333	221	22	9.9	64.3%	33 (14.9%)	72 (32.6%)	103 (46.6%)	4 (1.8%)	1 (0.5%)	0 (0.0%)	7 (3.2%)	30.3	87^th of 141 public high schools	38.3%					(n/a)		30.2		22.2							$20,127
Engineering - Science University Magnet School	Public, Magnet	6-12	500 Boston Post Road	West Haven	06516	South Central Connecticut Planning Region	New Haven School District	No	Yes	No	No	(475) 220-6000	608	52	11.6	50.8%	165 (27.1%)	177 (29.1%)	151 (24.8%)	64 (10.5%)	2 (0.3%)	0 (0.0%)	49 (8.1%)	61.8	55^th of 141 public high schools	61.0%		60.7	59^th of 145 public high schools	59.3%	4	68.2	44.3	70.4	37.0	52.9	52.9	70.6	36.5	55.2	64.0	$21,492

Frequently Asked Questions about Ansonia High School

What district is Ansonia High School in?

Ansonia School District

How many students attend Ansonia High School?

In the 2024-25 school year, 617 students attended Ansonia High School.

Is Ansonia High School a good school?

Ansonia High School ranks in the bottom 19.9% of Connecticut high schools.

What is the racial makeup of Ansonia High School?

Students at Ansonia High School are 47% Hispanic, 25% White, 19% African American, 5% Two or more races, 3% Asian.

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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Connecticut Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.