The most improved public high schools in Connecticut are Science And Technology Magnet Pathway For High School Grades, Connecticut Ib Academy and Explorations.
A school's improvement is based on a its total rise in ranking spots during the last five years (2020-25).
Improved Rank Range: 28
204
Avg. Improved Rank: 78
Most Improved Public High Schools in Connecticut (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Ranking Change (2020-25)
Grades
Location
Rank: #11.
Science And Technology Magnet Pathway For High School Grades
Magnet School
(Math: 20-29% | Reading: 50-59%)
Rank:
Rank:
5/
Bottom 50%10
Rank Change: +204
(from 759 to 555)
(from 759 to 555)
Grades: 9-12
20 Chester Street
New London, CT 06320
(860) 447-6400
New London, CT 06320
(860) 447-6400
Rank: #22.
Connecticut Ib Academy
Magnet School
(Math: 50-59% | Reading: 80-89%)
Rank:
Rank:
9/
Top 20%10
Rank Change: +181
(from 345 to 164)
(from 345 to 164)
Grades: 9-12
857 Forbes St.
East Hartford, CT 06118
(860) 622-5590
East Hartford, CT 06118
(860) 622-5590
Rank: #33.
Explorations
Charter School
(Math: 21-39% | Reading: 40-59%)
Rank:
Rank:
4/
Bottom 50%10
Rank Change: +168
(from 744 to 576)
(from 744 to 576)
Grades: 9-12
71 Spencer St.
Winsted, CT 06098
(860) 738-9070
Winsted, CT 06098
(860) 738-9070
Rank: #44.
Valley Regional High School
(Math: 50-54% | Reading: 80-84%)
Rank:
Rank:
9/
Top 20%10
Rank Change: +135
(from 311 to 176)
(from 311 to 176)
Grades: 9-12
256 Kelsey Hill Rd.
Deep River, CT 06417
(860) 526-5328
Deep River, CT 06417
(860) 526-5328
Rank: #55.
Old Saybrook Senior High School
(Math: 55-59% | Reading: 65-69%)
Rank:
Rank:
8/
Top 30%10
Rank Change: +134
(from 379 to 245)
(from 379 to 245)
Grades: 9-12
1111 Boston Post Rd.
Old Saybrook, CT 06475
(860) 395-3175
Old Saybrook, CT 06475
(860) 395-3175
Rank: #66.
University High School Of Science And Engineering
Magnet School
(Math: 40-44% | Reading: 60-64%)
Rank:
Rank:
6/
Top 50%10
Rank Change: +121
(from 518 to 397)
(from 518 to 397)
Grades: 9-12
351 Mark Twain Drive
Hartford, CT 06112
(860) 695-9020
Hartford, CT 06112
(860) 695-9020
Rank: #77.
Mark T. Sheehan High School
(Math: 40-44% | Reading: 60-64%)
Rank:
Rank:
6/
Top 50%10
Rank Change: +110
(from 507 to 397)
(from 507 to 397)
Grades: 9-12
142 Hope Hill Road
Wallingford, CT 06492
(203) 294-5900
Wallingford, CT 06492
(203) 294-5900
Rank: #88.
Wheeler High School
(Math: 55-59% | Reading: 75-79%)
Rank:
Rank:
9/
Top 20%10
Rank Change: +107
(from 278 to 171)
(from 278 to 171)
Grades: 7-12
297 Norwich/westerly Rd.
North Stonington, CT 06359
(860) 535-0377
North Stonington, CT 06359
(860) 535-0377
Rank: #99.
North Branford High School
(Math: 35-39% | Reading: 65-69%)
Rank:
Rank:
6/
Top 50%10
Rank Change: +106
(from 488 to 382)
(from 488 to 382)
Grades: 9-12
49 Caputo Rd.
North Branford, CT 06471
(203) 484-1465
North Branford, CT 06471
(203) 484-1465
Rank: #1010.
Eastford Elementary School
(Math: 55-59% | Reading: 65-69%)
Rank:
Rank:
8/
Top 30%10
Rank Change: +88
(from 333 to 245)
(from 333 to 245)
Grades: PK-12
12 Westford Road
Eastford, CT 06242
(860) 974-1130
Eastford, CT 06242
(860) 974-1130
Rank: #1111.
Bolton High School
(Math: 45-49% | Reading: 70-74%)
Rank:
Rank:
8/
Top 30%10
Rank Change: +79
(from 352 to 273)
(from 352 to 273)
Grades: 9-12
72 Brandy St.
Bolton, CT 06043
(860) 643-2768
Bolton, CT 06043
(860) 643-2768
Rank: #1212.
Hamden High School
(Math: 25% | Reading: 52%)
Rank:
Rank:
4/
Bottom 50%10
Rank Change: +77
(from 644 to 567)
(from 644 to 567)
Grades: 9-12
2040 Dixwell Ave.
Hamden, CT 06514
(203) 407-2040
Hamden, CT 06514
(203) 407-2040
Rank: #13 - 1413. - 14.
Lyman Hall High School
(Math: 37% | Reading: 65%)
Rank:
Rank:
6/
Top 50%10
Rank Change: +74
(from 487 to 413)
(from 487 to 413)
Grades: 9-12
70 Pond Hill Road
Wallingford, CT 06492
(203) 294-5350
Wallingford, CT 06492
(203) 294-5350
Rank: #13 - 1413. - 14.
Amistad Academy
Charter School
(Math: 21% | Reading: 40%)
Rank:
Rank:
3/
Bottom 50%10
Rank Change: +74
(from 769 to 695)
(from 769 to 695)
Grades: K-12
130 Edgewood Avenue
New Haven, CT 06511
(203) 772-7000
New Haven, CT 06511
(203) 772-7000
Rank: #1515.
Derby High School
(Math: 11-19% | Reading: 40-49%)
Rank:
Rank:
3/
Bottom 50%10
Rank Change: +71
(from 768 to 697)
(from 768 to 697)
Grades: 9-12
75 Chatfield Street
Derby, CT 06418
(203) 736-5032
Derby, CT 06418
(203) 736-5032
Rank: #1616.
Cheshire High School
(Math: 54% | Reading: 79%)
Rank:
Rank:
8/
Top 30%10
Rank Change: +69
(from 265 to 196)
(from 265 to 196)
Grades: 9-12
525 South Main St.
Cheshire, CT 06410
(203) 250-2511
Cheshire, CT 06410
(203) 250-2511
Rank: #1717.
Amity Regional High School
(Math: 66% | Reading: 86%)
Rank:
Rank:
10/
Top 10%10
Rank Change: +67
(from 151 to 84)
(from 151 to 84)
Grades: 9-12
25 Newton Rd.
Woodbridge, CT 06525
(203) 397-4830
Woodbridge, CT 06525
(203) 397-4830
Rank: #1818.
Masuk High School
(Math: 52% | Reading: 78%)
Rank:
Rank:
8/
Top 30%10
Rank Change: +64
(from 265 to 201)
(from 265 to 201)
Grades: 9-12
1014 Monroe Tpke.
Monroe, CT 06468
(203) 452-5823
Monroe, CT 06468
(203) 452-5823
Rank: #1919.
Emmett O'brien Technical High School
Vocational School
(Math: 20-24% | Reading: 35-39%)
Rank:
Rank:
3/
Bottom 50%10
Rank Change: +63
(from 755 to 692)
(from 755 to 692)
Grades: 9-12
141 Prindle Ave.
Ansonia, CT 06401
(203) 732-1800
Ansonia, CT 06401
(203) 732-1800
Rank: #20 - 2220. - 22.
Bacon Academy
(Math: 45-49% | Reading: 65-69%)
Rank:
Rank:
7/
Top 50%10
Rank Change: +62
(from 379 to 317)
(from 379 to 317)
Grades: 9-12
611 Norwich Ave.
Colchester, CT 06415
(860) 537-2378
Colchester, CT 06415
(860) 537-2378
Rank: #20 - 2220. - 22.
New Milford High School
(Math: 41% | Reading: 69%)
Rank:
Rank:
7/
Top 50%10
Rank Change: +62
(from 423 to 361)
(from 423 to 361)
Grades: 9-12
388 Danbury Rd.
New Milford, CT 06776
(860) 350-6647
New Milford, CT 06776
(860) 350-6647
Rank: #20 - 2220. - 22.
Central High School
(Math: 13% | Reading: 37%)
Rank:
Rank:
3/
Bottom 50%10
Rank Change: +62
(from 804 to 742)
(from 804 to 742)
Grades: 9-12
1 Lincoln Blvd.
Bridgeport, CT 06606
(203) 576-7377
Bridgeport, CT 06606
(203) 576-7377
Rank: #2323.
Pomperaug Regional High School
(Math: 62% | Reading: 79%)
Rank:
Rank:
9/
Top 20%10
Rank Change: +61
(from 192 to 131)
(from 192 to 131)
Grades: 9-12
234 Judd Rd.
Southbury, CT 06488
(203) 262-3200
Southbury, CT 06488
(203) 262-3200
Rank: #2424.
Global Experience Magnet School
Magnet School
(Math: 10-14% | Reading: 30-34%)
Rank:
Rank:
2/
Bottom 50%10
Rank Change: +57
(from 834 to 777)
(from 834 to 777)
Grades: 6-12
44 Griffin Rd.
Bloomfield, CT 06002
(860) 769-6600
Bloomfield, CT 06002
(860) 769-6600
Rank: #2525.
Brookfield High School
(Math: 50% | Reading: 73%)
Rank:
Rank:
8/
Top 30%10
Rank Change: +50
(from 307 to 257)
(from 307 to 257)
Grades: 9-12
45 Long Meadow Hill Rd.
Brookfield, CT 06804
(203) 775-7725
Brookfield, CT 06804
(203) 775-7725
Rank: #2626.
Tourtellotte Memorial High School
(Math: 20-29% | Reading: 50-59%)
Rank:
Rank:
5/
Bottom 50%10
Rank Change: +47
(from 602 to 555)
(from 602 to 555)
Grades: 9-12
785 Riverside Dr.
North Grosvenordale, CT 06255
(860) 923-9303
North Grosvenordale, CT 06255
(860) 923-9303
Rank: #2727.
Achievement First Hartford Academy
Charter School
(Math: 24% | Reading: 39%)
Rank:
Rank:
3/
Bottom 50%10
Rank Change: +44
(from 723 to 679)
(from 723 to 679)
Grades: K-12
305 Greenfield Street
Hartford, CT 06112
(860) 695-6685
Hartford, CT 06112
(860) 695-6685
Rank: #2828.
North Haven High School
(Math: 40-44% | Reading: 65-69%)
Rank:
Rank:
7/
Top 50%10
Rank Change: +41
(from 389 to 348)
(from 389 to 348)
Grades: 9-12
221 Elm Street
North Haven, CT 06473
(203) 239-1641
North Haven, CT 06473
(203) 239-1641
Rank: #2929.
New London Visual And Performing Arts Magnet School
Magnet School
(Math: 10-14% | Reading: 25-29%)
Rank:
Rank:
2/
Bottom 50%10
Rank Change: +40
(from 839 to 799)
(from 839 to 799)
Grades: 6-12
36 Waller Street
New London, CT 06320
(860) 449-6800
New London, CT 06320
(860) 449-6800
Rank: #30 - 3130. - 31.
Joel Barlow High School
(Math: 65-69% | Reading: 80-84%)
Rank:
Rank:
10/
Top 10%10
Rank Change: +39
(from 115 to 76)
(from 115 to 76)
Grades: 9-12
100 Black Rock Tpke.
Redding, CT 06896
(203) 938-2508
Redding, CT 06896
(203) 938-2508
Rank: #30 - 3130. - 31.
James Hillhouse High School
(Math: 6-9% | Reading: 15-19%)
Rank:
Rank:
1/
Bottom 50%10
Rank Change: +39
(from 904 to 865)
(from 904 to 865)
Grades: 9-12
480 Sherman Parkway
New Haven, CT 06511
(475) 220-7500
New Haven, CT 06511
(475) 220-7500
Rank: #3232.
The Morgan School
(Math: 50-54% | Reading: 70-74%)
Rank:
Rank:
8/
Top 30%10
Rank Change: +38
(from 278 to 240)
(from 278 to 240)
Grades: 9-12
71 Killingworth Tpke.
Clinton, CT 06413
(860) 664-6504
Clinton, CT 06413
(860) 664-6504
Rank: #3333.
E. O. Smith High School
(Math: 55% | Reading: 74%)
Rank:
Rank:
8/
Top 30%10
Rank Change: +34
(from 254 to 220)
(from 254 to 220)
Grades: 9-12
1235 Storrs Rd.
Storrs Mansfield, CT 06268
(860) 487-0877
Storrs Mansfield, CT 06268
(860) 487-0877
Rank: #3434.
The Gilbert School
(Math: 26% | Reading: 44%)
Rank:
Rank:
4/
Bottom 50%10
Rank Change: +30
(from 670 to 640)
(from 670 to 640)
Grades: 7-12
200 Williams Ave.
Winsted, CT 06098
(860) 379-8521
Winsted, CT 06098
(860) 379-8521
Rank: #35 - 3735. - 37.
Berlin High School
(Math: 48% | Reading: 67%)
Rank:
Rank:
7/
Top 50%10
Rank Change: +28
(from 343 to 315)
(from 343 to 315)
Grades: 9-12
139 Patterson Way
Berlin, CT 06037
(860) 828-6577
Berlin, CT 06037
(860) 828-6577
Show 100 more public schools in CT (out of 205 total schools)
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