Massachusetts School and District Profiles

Arlington

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2026 Official Accountability Report - Arlington

Accountability Information

Progress toward improvement targetsAccountability percentile
82% - Meeting or exceeding targets-

Overall progress toward improvement targets

20252026
Annual criterion-referenced target percentage83%82%
Weight40%60%
Cumulative Criterion-referenced target percentage
(2025 x 40%) + (2026 x 60%)
82%
Meeting or exceeding targets

2026 Points awarded

2026 Progress toward improvement targets
Indicator All Students
(Non-high school grades)
Lowest Performing Students
(Non-high school grades)
All Students
(High school grades)
Lowest Performing Students
(High school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight % Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement44-34-44-04-
Mathematics achievement44-44-44-34-
Science achievement44----44----
Achievement total121260.07867.5121240.03867.5
GrowthEnglish language arts growth44-34-24-24-
Mathematics growth34-34-44-34-
Growth total7820.06822.56820.05822.5
High school completionFour-year cohort graduation rate------44----
Extended engagement rate------44----
Annual dropout rate------34----
High school completion total------111220.0---
Progress toward attaining English language proficiencyEnglish language proficiency total0410.0---0410.0---
Additional indicatorsChronic absenteeism34-24-44-44-
Advanced coursework completion------34----
Additional indicators total3410.02410.07810.04410.0
Weighted total8.99.6-6.37.6-8.910.0-3.67.6-
Percentage of possible points93%-83%-89%-47%-
Percentage of possible points by gradespan88%
Weight of non-high school results:69%
68%
Weight of high school results:31%
2026 Annual criterion-referenced target percentage82%

2025 Points awarded

2025 Progress toward improvement targets
Indicator All Students
(Non-high school grades)
Lowest Performing Students
(Non-high school grades)
All Students
(High school grades)
Lowest Performing Students
(High school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight % Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement44-34-44-34-
Mathematics achievement44-34-44-34-
Science achievement44----44----
Achievement total121260.06867.5121240.06867.5
GrowthEnglish language arts growth44-34-24-34-
Mathematics growth34-34-34-24-
Growth total7820.06822.55820.05822.5
High school completionFour-year cohort graduation rate------34----
Extended engagement rate------44----
Annual dropout rate------34----
High school completion total------101220.0---
Progress toward attaining English language proficiencyEnglish language proficiency total1410.0---3410.0---
Additional indicatorsChronic absenteeism34-34-44-34-
Advanced coursework completion------34----
Additional indicators total3410.03410.07810.03410.0
Weighted total9.09.6-5.77.6-8.810.0-5.57.6-
Percentage of possible points94%-75%-88%-72%-
Percentage of possible points by gradespan84%
Weight of non-high school results:70%
80%
Weight of high school results:30%
2025 Annual criterion-referenced target percentage83%

Overall progress toward improvement targets

20252026
Annual criterion-referenced target percentage80%59%
Weight40%60%
Cumulative Criterion-referenced target percentage
(2025 x 40%) + (2026 x 60%)
68%
Substantial progress toward targets

2026 Points awarded

2026 Progress toward improvement targets
Indicator High Needs Student Group
(Non-high school grades)
High Needs Student Group
(High school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement34-04-
Mathematics achievement34-04-
Science achievement34-04-
Achievement total91267.501247.5
GrowthEnglish language arts growth34-24-
Mathematics growth34-34-
Growth total6822.55822.5
High school completionFour-year cohort graduation rate---34-
Extended engagement rate---34-
Annual dropout rate---04-
High school completion total---61220.0
Progress toward attaining English language proficiencyEnglish language proficiency total------
Additional indicatorsChronic absenteeism24-34-
Advanced coursework completion---34-
Additional indicators total2410.06810.0
Weighted total7.610.3-2.910.7-
Percentage of possible points74%-27%-
Percentage of possible points by gradespan74%
Weight of non-high school results:69%
27%
Weight of high school results:31%
2026 Annual criterion-referenced target percentage59%

2025 Points awarded

2025 Progress toward improvement targets
Indicator High Needs Student Group
(Non-high school grades)
High Needs Student Group
(High school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement44-34-
Mathematics achievement34-34-
Science achievement34-44-
Achievement total101267.5101247.5
GrowthEnglish language arts growth34-34-
Mathematics growth34-34-
Growth total6822.56822.5
High school completionFour-year cohort graduation rate---04-
Extended engagement rate---44-
Annual dropout rate---44-
High school completion total---81220.0
Progress toward attaining English language proficiencyEnglish language proficiency total------
Additional indicatorsChronic absenteeism34-04-
Advanced coursework completion---44-
Additional indicators total3410.04810.0
Weighted total8.410.3-8.110.7-
Percentage of possible points82%-76%-
Percentage of possible points by gradespan82%
Weight of non-high school results:70%
76%
Weight of high school results:30%
2025 Annual criterion-referenced target percentage80%

Detailed data for each indicator

English language arts achievement - MCAS average composite scaled score - Non-high school
Group 2025 Achievement 2026 Achievement Change 2026 Target N Points Reason
All Students 511.4 511.4 0.0 513.3 2,8724Path Forward: Exceeded Target
Lowest Performing 483.3 487.6 4.3 490.0 5463Recovery Path: Met Target
High Needs 494.2 494.3 0.1 495.9 9283Recovery Path: Met Target
English Learners and Former English Learners 494.7 492.1 -2.6 496.8 2620Path Forward: Declined
Low Income 491.9 489.4 -2.5 494.2 3300Recovery Path: Declined
Students with Disabilities 489.8 491.2 1.4 492.2 5993Recovery Path: Met Target
American Indian or Alaska Native-------
Asian 516.6 513.5 -3.1 519.0 3524Path Forward: Exceeded Target
Black or African American 488.3 488.1 -0.2 490.7 841Path Forward: No Change
Hispanic or Latino 501.1 500.1 -1.0 503.6 2333Recovery Path: Met Target
Multi-Race, Not Hispanic or Latino 511.4 514.8 3.4 513.3 3224Path Forward: Exceeded Target
Native Hawaiian or Other Pacific Islander-------
White 512.7 512.9 0.2 514.6 1,8794Path Forward: Exceeded Target

English language arts achievement - MCAS average composite scaled score - High school
Group 2025 Achievement 2026 Achievement Change 2026 Target N Points Reason
All Students 516.4 516.6 0.2 519.0 4134Path Forward: Exceeded Target
Lowest Performing 499.2 491.1 -8.1 504.3 890Path Forward: Declined
High Needs 502.5 494.8 -7.7 505.8 910Path Forward: Declined
English Learners and Former English Learners---- 18--
Low Income 500.8 490.1 -10.7 504.7 360Path Forward: Declined
Students with Disabilities 498.0 494.0 -4.0 500.7 603Path Forward: Met Target
American Indian or Alaska Native-------
Asian 521.9 520.6 -1.3 526.9 454Path Forward: Exceeded Target
Black or African American---- 15--
Hispanic or Latino 507.3 508.8 1.5 510.5 273Path Forward: Met Target
Multi-Race, Not Hispanic or Latino 518.5 512.5 -6.0 521.1 313Path Forward: Met Target
Native Hawaiian or Other Pacific Islander---- 2--
White 517.9 518.7 0.8 520.5 2934Path Forward: Exceeded Target

Mathematics achievement - MCAS average composite scaled score - Non-high school
Group 2025 Achievement 2026 Achievement Change 2026 Target N Points Reason
All Students 510.4 510.9 0.5 512.3 2,8824Path Forward: Exceeded Target
Lowest Performing 483.3 487.8 4.5 487.0 5464Recovery Path: Exceeded Target
High Needs 495.1 495.6 0.5 496.3 9353Recovery Path: Met Target
English Learners and Former English Learners 498.5 499.1 0.6 501.0 2672Path Forward: Improved Below Target
Low Income 491.2 489.6 -1.6 493.6 3270Recovery Path: Declined
Students with Disabilities 490.5 491.6 1.1 492.1 6023Recovery Path: Met Target
American Indian or Alaska Native-------
Asian 520.5 520.4 -0.1 523.4 3574Path Forward: Exceeded Target
Black or African American 483.9 483.8 -0.1 486.2 871Path Forward: No Change
Hispanic or Latino 500.1 499.5 -0.6 501.9 2303Recovery Path: Met Target
Multi-Race, Not Hispanic or Latino 512.0 515.2 3.2 513.9 3224Path Forward: Exceeded Target
Native Hawaiian or Other Pacific Islander-------
White 510.6 511.0 0.4 512.4 1,8844Path Forward: Exceeded Target

Mathematics achievement - MCAS average composite scaled score - High school
Group 2025 Achievement 2026 Achievement Change 2026 Target N Points Reason
All Students 520.5 522.3 1.8 523.0 4054Path Forward: Exceeded Target
Lowest Performing 497.4 494.3 -3.1 502.5 893Path Forward: Met Target
High Needs 503.7 496.1 -7.6 507.5 900Path Forward: Declined
English Learners and Former English Learners---- 15--
Low Income 503.5 489.3 -14.2 508.0 350Path Forward: Declined
Students with Disabilities 494.6 492.9 -1.7 498.0 613Path Forward: Met Target
American Indian or Alaska Native-------
Asian 533.1 528.5 -4.6 537.3 444Path Forward: Exceeded Target
Black or African American---- 14--
Hispanic or Latino 506.7 507.3 0.6 510.7 263Path Forward: Met Target
Multi-Race, Not Hispanic or Latino 525.7 526.5 0.8 528.2 314Path Forward: Exceeded Target
Native Hawaiian or Other Pacific Islander---- 2--
White 521.8 523.8 2.0 524.4 2884Path Forward: Exceeded Target

Science achievement - MCAS average composite scaled score - Non-high school
Group 2025 Achievement 2026 Achievement Change 2026 Target N Points Reason
All Students 514.5 515.8 1.3 517.2 9274Path Forward: Exceeded Target
Lowest Performing---- 197--
High Needs 498.5 500.6 2.1 501.5 3013Path Forward: Met Target
English Learners and Former English Learners 497.8 498.2 0.4 501.0 852Path Forward: Improved Below Target
Low Income 493.6 493.9 0.3 496.9 1173Path Forward: Met Target
Students with Disabilities 495.6 496.1 0.5 499.0 1953Path Forward: Met Target
American Indian or Alaska Native-------
Asian 519.7 517.5 -2.2 523.4 1104Path Forward: Exceeded Target
Black or African American 490.0 486.9 -3.1 493.5 250Path Forward: Declined
Hispanic or Latino 501.1 504.3 3.2 503.8 763Path Forward: Met Target
Multi-Race, Not Hispanic or Latino 519.9 518.8 -1.1 522.6 894Path Forward: Exceeded Target
Native Hawaiian or Other Pacific Islander-------
White 515.2 517.7 2.5 517.8 6264Path Forward: Exceeded Target

Science achievement - MCAS average composite scaled score - High school
Group 2025 Achievement 2026 Achievement Change 2026 Target N Points Reason
All Students 518.7 515.3 -3.4 520.7 4024Path Forward: Exceeded Target
Lowest Performing---- 87--
High Needs 503.4 490.0 -13.4 506.3 810Path Forward: Declined
English Learners and Former English Learners---- 12--
Low Income 499.2 488.4 -10.8 502.4 320Recovery Path: Declined
Students with Disabilities 496.8 487.4 -9.4 499.9 550Path Forward: Declined
American Indian or Alaska Native-------
Asian 529.7 521.9 -7.8 532.5 434Path Forward: Exceeded Target
Black or African American---- 13--
Hispanic or Latino 509.4 500.4 -9.0 512.5 253Path Forward: Met Target
Multi-Race, Not Hispanic or Latino 523.9 521.4 -2.5 525.9 274Path Forward: Exceeded Target
Native Hawaiian or Other Pacific Islander---- 2--
White 519.3 516.1 -3.2 521.2 2924Path Forward: Exceeded Target

English language arts growth - Non-high school
Group 2026 Mean SGP N Points Reason
All Students 60.4 2,2764Exceeded Typical Growth
Lowest Performing 58.8 5453Typical Growth - High
High Needs 56.6 6953Typical Growth - High
English Learners and Former English Learners 59.6 1773Typical Growth - High
Low Income 54.5 2473Typical Growth - High
Students with Disabilities 54.8 4543Typical Growth - High
American Indian or Alaska Native----
Asian 61.0 2654Exceeded Typical Growth
Black or African American 56.0 683Typical Growth - High
Hispanic or Latino 56.5 1713Typical Growth - High
Multi-Race, Not Hispanic or Latino 63.0 2504Exceeded Typical Growth
Native Hawaiian or Other Pacific Islander----
White 60.4 1,5224Exceeded Typical Growth

English language arts growth - High school
Group 2026 Mean SGP N Points Reason
All Students 47.7 3752Typical Growth - Low
Lowest Performing 47.6 892Typical Growth - Low
High Needs 45.0 792Typical Growth - Low
English Learners and Former English Learners- 10--
Low Income 50.2 323Typical Growth - High
Students with Disabilities 42.8 562Typical Growth - Low
American Indian or Alaska Native----
Asian 53.9 443Typical Growth - High
Black or African American- 14--
Hispanic or Latino 61.5 214Exceeded Typical Growth
Multi-Race, Not Hispanic or Latino 47.2 262Typical Growth - Low
Native Hawaiian or Other Pacific Islander- 2--
White 46.2 2682Typical Growth - Low

Mathematics growth - Non-high school
Group 2026 Mean SGP N Points Reason
All Students 58.0 2,2973Typical Growth - High
Lowest Performing 58.8 5453Typical Growth - High
High Needs 56.5 7183Typical Growth - High
English Learners and Former English Learners 60.7 1964Exceeded Typical Growth
Low Income 56.3 2533Typical Growth - High
Students with Disabilities 54.3 4613Typical Growth - High
American Indian or Alaska Native----
Asian 63.0 2714Exceeded Typical Growth
Black or African American 52.6 713Typical Growth - High
Hispanic or Latino 55.7 1733Typical Growth - High
Multi-Race, Not Hispanic or Latino 61.4 2534Exceeded Typical Growth
Native Hawaiian or Other Pacific Islander----
White 57.1 1,5293Typical Growth - High

Mathematics growth - High school
Group 2026 Mean SGP N Points Reason
All Students 65.5 3724Exceeded Typical Growth
Lowest Performing 53.3 893Typical Growth - High
High Needs 50.5 813Typical Growth - High
English Learners and Former English Learners- 11--
Low Income 44.8 322Typical Growth - Low
Students with Disabilities 48.0 562Typical Growth - Low
American Indian or Alaska Native----
Asian 65.5 434Exceeded Typical Growth
Black or African American- 13--
Hispanic or Latino 59.1 213Typical Growth - High
Multi-Race, Not Hispanic or Latino 71.9 274Exceeded Typical Growth
Native Hawaiian or Other Pacific Islander- 2--
White 66.5 2664Exceeded Typical Growth

Four-year cohort graduation rate - High school
Group 2024 Rate (%) 2025 Rate (%) Change Target (%) N Points Reason
All Students 95.0 96.8 1.8 95.0 4024Exceeded Target
Lowest Performing-------
High Needs 85.1 89.7 4.6 89.4 1263Met Target
English Learners and Former English Learners---- 11--
Low Income 82.1 89.7 7.6 86.7 684Exceeded Target
Students with Disabilities 77.3 84.9 7.6 83.4 734Exceeded Target
American Indian or Alaska Native-------
Asian 97.9 100.0 2.1 95.0 474Exceeded Target
Black or African American---- 11--
Hispanic or Latino 88.6 91.9 3.3 93.3 372Improved Below Target
Multi-Race, Not Hispanic or Latino 95.7 100.0 4.3 95.0 244Exceeded Target
Native Hawaiian or Other Pacific Islander---- 1--
White 96.5 96.5 0.0 95.0 2824Exceeded Target

Extended engagement rate - High school
Group 2023 Rate (%) 2024 Rate (%) Change Target (%) N Points Reason
All Students 98.4 98.5 0.1 95.0 4014Exceeded Target
Lowest Performing-------
High Needs 96.1 95.0 -1.1 95.0 1213Met Target
English Learners and Former English Learners---- 14--
Low Income 94.9 92.3 -2.6 95.0 780Declined
Students with Disabilities 94.5 93.9 -0.6 95.0 660Declined
American Indian or Alaska Native-------
Asian 100.0 100.0 0.0 95.0 474Exceeded Target
Black or African American---- 12--
Hispanic or Latino 89.3 100.0 10.7 93.4 354Exceeded Target
Multi-Race, Not Hispanic or Latino 100.0 95.7 -4.3 95.0 234Exceeded Target
Native Hawaiian or Other Pacific Islander-------
White 98.9 98.9 0.0 95.0 2844Exceeded Target

Annual dropout rate - High school
Group 2024 Rate (%) 2025 Rate (%) Change Target (%) N Points Reason
All Students 0.3 0.4 0.1 1.0 1,6773Met Target
Lowest Performing-------
High Needs 1.0 1.2 0.2 1.0 4100Declined
English Learners and Former English Learners---- 31--
Low Income 1.8 1.7 -0.1 1.6 1792Improved Below Target
Students with Disabilities 0.0 1.2 1.2 1.0 2560Declined
American Indian or Alaska Native---- 2--
Asian 0.0 0.0 0.0 1.0 1684Exceeded Target
Black or African American---- 58--
Hispanic or Latino 0.7 2.0 1.3 1.0 1530Declined
Multi-Race, Not Hispanic or Latino 1.0 0.9 -0.1 1.0 1133Met Target
Native Hawaiian or Other Pacific Islander---- 4--
White 0.2 0.3 0.1 1.0 1,1793Met Target

Progress toward attaining English language proficiency - Non-high school
Group 2025 Rate (%) 2026 Rate (%) Change Target N Points Reason
All Students 76.5 70.5 -6.0 81.4 1760Declined
Lowest Performing-------
High Needs-------
English Learners and Former English Learners 76.5 70.5 -6.0 81.4 1760Declined
Low Income-------
Students with Disabilities-------
American Indian or Alaska Native-------
Asian-------
Black or African American-------
Hispanic or Latino-------
Multi-Race, Not Hispanic or Latino-------
Native Hawaiian or Other Pacific Islander-------
White-------

Progress toward attaining English language proficiency - High school
Group 2025 Rate (%) 2026 Rate (%) Change Target N Points Reason
All Students 60.9 43.5 -17.4 63.0 230Declined
Lowest Performing-------
High Needs-------
English Learners and Former English Learners-------
Low Income-------
Students with Disabilities-------
American Indian or Alaska Native-------
Asian-------
Black or African American-------
Hispanic or Latino-------
Multi-Race, Not Hispanic or Latino-------
Native Hawaiian or Other Pacific Islander-------
White-------

Chronic absenteeism - Non-high school
Group 2025 Rate (%) 2026 Rate (%) Change Target N Points Reason
All Students 8.0 6.9 -1.1 7.0 3,8943Met Target
Lowest Performing 11.1 9.9 -1.2 9.0 5462Improved Below Target
High Needs 13.4 12.6 -0.8 11.6 1,3212Improved Below Target
English Learners and Former English Learners 11.8 10.6 -1.2 9.3 4152Improved Below Target
Low Income 20.5 20.8 0.3 18.1 4711No Change
Students with Disabilities 13.4 13.6 0.2 11.0 8191No Change
American Indian or Alaska Native---- 1--
Asian 6.9 4.5 -2.4 4.8 5314Exceeded Target
Black or African American 14.2 21.6 7.4 11.7 1160Declined
Hispanic or Latino 16.8 17.0 0.2 13.9 3301No Change
Multi-Race, Not Hispanic or Latino 8.4 5.7 -2.7 7.4 4584Exceeded Target
Native Hawaiian or Other Pacific Islander-------
White 6.8 5.5 -1.3 5.6 2,4584Exceeded Target

Chronic absenteeism - High school
Group 2025 Rate (%) 2026 Rate (%) Change Target N Points Reason
All Students 9.3 8.1 -1.2 7.7 1,8054Exceeded Target
Lowest Performing 12.1 5.6 -6.5 6.8 894Exceeded Target
High Needs 20.6 17.7 -2.9 17.7 4513Met Target
English Learners and Former English Learners---- 82--
Low Income 24.2 20.2 -4.0 19.7 2283Met Target
Students with Disabilities 25.5 20.8 -4.7 22.0 2744Exceeded Target
American Indian or Alaska Native---- 2--
Asian 7.1 5.5 -1.6 4.3 2004Exceeded Target
Black or African American---- 66--
Hispanic or Latino 16.5 13.9 -2.6 12.1 1662Improved Below Target
Multi-Race, Not Hispanic or Latino 5.2 7.1 1.9 3.6 1124Exceeded Target
Native Hawaiian or Other Pacific Islander---- 3--
White 8.5 7.6 -0.9 6.7 1,2564Exceeded Target

Advanced coursework completion - High school
Group 2025 Rate (%) 2026 Rate (%) Change Target N Points Reason
All Students 86.7 89.0 2.3 90.1 8613Met Target
Lowest Performing-------
High Needs 64.5 71.0 6.5 70.2 2213Met Target
English Learners and Former English Learners---- 34--
Low Income 62.1 69.9 7.8 68.3 1234Exceeded Target
Students with Disabilities 57.4 59.5 2.1 64.5 1262Improved Below Target
American Indian or Alaska Native---- 2--
Asian 90.0 94.8 4.8 93.7 774Exceeded Target
Black or African American---- 30--
Hispanic or Latino 66.7 73.3 6.6 73.5 863Met Target
Multi-Race, Not Hispanic or Latino 91.8 96.6 4.8 95.0 594Exceeded Target
Native Hawaiian or Other Pacific Islander---- 1--
White 89.8 90.4 0.6 93.4 6064Exceeded Target

Assessment participation - All students
Group English language arts Mathematics Science
Enrolled Assessed % Met Target? Years in Rate Enrolled Assessed % Met Target? Years in Rate Enrolled Assessed % Met Target? Years in Rate
All Students 3,363 3,30098Yes 1 3,371 3,30298Yes 1 1,375 1,34798Yes 1

Assessment participation - Student Group
Group English language arts Mathematics Science Overall
Enrolled Assessed Enrolled Assessed Enrolled Assessed Total Enrolled Total Assessed % Met Target? Years in Rate
High Needs 1,074 1,034 1,079 1,040 411 394 2,564 2,46896Yes1
English Learners and Former English Learners 301 295 302 297 107 106 710 69898Yes1
Low Income 383 368 384 364 161 154 928 88695Yes1
Students with Disabilities 690 659 695 663 270 254 1,655 1,57695Yes1
American Indian or Alaska Native-----------
Asian 407 403 409 407 157 154 973 96499Yes1
Black or African American 103 99 104 101 42 40 249 24096Yes1
Hispanic or Latino 265 261 266 257 105 103 636 62198Yes1
Multi-Race, Not Hispanic or Latino 360 353 361 353 123 121 844 82798Yes1
Native Hawaiian or Other Pacific Islander 2 2 2 2 2 2 6----
White 2,224 2,180 2,227 2,180 945 926 5,396 5,28698Yes1

School Accountability Information
School Accountability information School accountability percentile
Arlington HighRequiring assistance or intervention 91
BrackettNot requiring assistance or intervention 91
Cyrus E DallinNot requiring assistance or intervention 95
Gibbs SchoolRequiring assistance or intervention 90
HardyRequiring assistance or intervention 88
John A BishopNot requiring assistance or intervention 99
M Norcross StrattonNot requiring assistance or intervention 90
Menotomy PreschoolInsufficient data-
Ottoson MiddleNot requiring assistance or intervention 98
PeirceNot requiring assistance or intervention 93
ThompsonNot requiring assistance or intervention 86



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