Massachusetts School and District Profiles

Chelmsford

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2026 Official Accountability Report - Chelmsford

Accountability Information

Progress toward improvement targetsAccountability percentile
49% - Moderate progress toward targets-

Overall progress toward improvement targets

20252026
Annual criterion-referenced target percentage36%58%
Weight40%60%
Cumulative Criterion-referenced target percentage
(2025 x 40%) + (2026 x 60%)
49%
Moderate progress toward 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 achievement04-24-34-24-
Mathematics achievement24-34-34-24-
Science achievement34----44----
Achievement total51260.05867.5101240.04867.5
GrowthEnglish language arts growth34-24-34-34-
Mathematics growth34-24-34-34-
Growth total6820.04822.56820.06822.5
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 total4410.0---0410.0---
Additional indicatorsChronic absenteeism34-04-04-04-
Advanced coursework completion------44----
Additional indicators total3410.00410.04810.00410.0
Weighted total4.99.6-4.37.6-7.810.0-4.17.6-
Percentage of possible points51%-57%-78%-54%-
Percentage of possible points by gradespan54%
Weight of non-high school results:69%
66%
Weight of high school results:31%
2026 Annual criterion-referenced target percentage58%

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 achievement24-24-04-04-
Mathematics achievement04-04-04-04-
Science achievement24----04----
Achievement total41260.02867.501240.00867.5
GrowthEnglish language arts growth34-34-34-34-
Mathematics growth24-24-34-34-
Growth total5820.05822.56820.06822.5
High school completionFour-year cohort graduation rate------14----
Extended engagement rate------44----
Annual dropout rate------44----
High school completion total------91220.0---
Progress toward attaining English language proficiencyEnglish language proficiency total1410.0---3410.0---
Additional indicatorsChronic absenteeism34-34-14-34-
Advanced coursework completion------44----
Additional indicators total3410.03410.05810.03410.0
Weighted total3.89.6-2.87.6-3.810.0-1.77.6-
Percentage of possible points40%-37%-38%-22%-
Percentage of possible points by gradespan38%
Weight of non-high school results:69%
30%
Weight of high school results:31%
2025 Annual criterion-referenced target percentage36%

Overall progress toward improvement targets

20252026
Annual criterion-referenced target percentage41%45%
Weight40%60%
Cumulative Criterion-referenced target percentage
(2025 x 40%) + (2026 x 60%)
43%
Moderate 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 achievement04-24-
Mathematics achievement34-34-
Science achievement04-44-
Achievement total31267.591247.5
GrowthEnglish language arts growth24-24-
Mathematics growth24-34-
Growth total4822.55822.5
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 total------
Additional indicatorsChronic absenteeism24-24-
Advanced coursework completion---44-
Additional indicators total2410.06810.0
Weighted total3.110.3-8.210.7-
Percentage of possible points30%-77%-
Percentage of possible points by gradespan30%
Weight of non-high school results:69%
77%
Weight of high school results:31%
2026 Annual criterion-referenced target percentage45%

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 achievement24-04-
Mathematics achievement04-04-
Science achievement34-04-
Achievement total51267.501247.5
GrowthEnglish language arts growth34-24-
Mathematics growth24-34-
Growth total5822.55822.5
High school completionFour-year cohort graduation rate---24-
Extended engagement rate---04-
Annual dropout rate---44-
High school completion total---61220.0
Progress toward attaining English language proficiencyEnglish language proficiency total------
Additional indicatorsChronic absenteeism44-04-
Advanced coursework completion---44-
Additional indicators total4410.04810.0
Weighted total4.910.3-2.710.7-
Percentage of possible points48%-25%-
Percentage of possible points by gradespan48%
Weight of non-high school results:69%
25%
Weight of high school results:31%
2025 Annual criterion-referenced target percentage41%

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 502.7 501.4 -1.3 505.1 2,3520Recovery Path: Declined
Lowest Performing 474.0 475.5 1.5 477.7 4512Recovery Path: Improved Below Target
High Needs 488.3 487.3 -1.0 490.3 9340Recovery Path: Declined
English Learners and Former English Learners 489.8 488.7 -1.1 491.9 2770Path Forward: Declined
Low Income 489.6 487.4 -2.2 491.7 4500Recovery Path: Declined
Students with Disabilities 480.2 478.7 -1.5 482.7 5300Recovery Path: Declined
American Indian or Alaska Native---- 5--
Asian 510.3 509.4 -0.9 512.6 4634Recovery Path: Exceeded Target
Black or African American 498.6 493.4 -5.2 501.0 953Path Forward: Met Target
Hispanic or Latino 491.2 491.5 0.3 494.2 2122Recovery Path: Improved Below Target
Multi-Race, Not Hispanic or Latino 503.7 504.7 1.0 505.6 1003Path Forward: Met Target
Native Hawaiian or Other Pacific Islander---- 3--
White 502.1 500.6 -1.5 504.7 1,4740Recovery Path: Declined

English language arts achievement - MCAS average composite scaled score - High school
Group 2025 Achievement 2026 Achievement Change 2026 Target N Points Reason
All Students 509.4 510.0 0.6 512.0 3443Path Forward: Met Target
Lowest Performing 487.4 488.3 0.9 492.5 732Path Forward: Improved Below Target
High Needs 492.2 493.3 1.1 495.5 992Path Forward: Improved Below Target
English Learners and Former English Learners---- 17--
Low Income 495.8 498.1 2.3 499.7 523Path Forward: Met Target
Students with Disabilities 485.9 483.8 -2.1 488.6 550Path Forward: Declined
American Indian or Alaska Native-------
Asian 519.1 520.2 1.1 521.9 684Recovery Path: Exceeded Target
Black or African American---- 15--
Hispanic or Latino 492.5 505.1 12.6 495.7 364Path Forward: Exceeded Target
Multi-Race, Not Hispanic or Latino---- 16--
Native Hawaiian or Other Pacific Islander-------
White 509.3 506.5 -2.8 511.9 2090Path Forward: Declined

Mathematics achievement - MCAS average composite scaled score - Non-high school
Group 2025 Achievement 2026 Achievement Change 2026 Target N Points Reason
All Students 501.4 502.9 1.5 503.5 2,3782Recovery Path: Improved Below Target
Lowest Performing 475.4 478.1 2.7 478.4 4513Recovery Path: Met Target
High Needs 488.9 490.5 1.6 490.5 9393Recovery Path: Met Target
English Learners and Former English Learners 493.4 494.1 0.7 495.9 2782Path Forward: Improved Below Target
Low Income 487.4 489.1 1.7 489.3 4493Recovery Path: Met Target
Students with Disabilities 482.0 482.8 0.8 484.0 5322Recovery Path: Improved Below Target
American Indian or Alaska Native---- 5--
Asian 514.0 514.2 0.2 515.9 4644Recovery Path: Exceeded Target
Black or African American 492.9 492.5 -0.4 495.2 941Path Forward: No Change
Hispanic or Latino 487.2 490.4 3.2 489.4 2154Recovery Path: Exceeded Target
Multi-Race, Not Hispanic or Latino 505.9 508.9 3.0 507.8 1024Path Forward: Exceeded Target
Native Hawaiian or Other Pacific Islander---- 3--
White 499.8 501.5 1.7 501.6 1,4953Recovery Path: Met Target

Mathematics achievement - MCAS average composite scaled score - High school
Group 2025 Achievement 2026 Achievement Change 2026 Target N Points Reason
All Students 506.7 509.0 2.3 508.9 3393Recovery Path: Met Target
Lowest Performing 482.7 483.7 1.0 487.8 732Path Forward: Improved Below Target
High Needs 489.3 492.8 3.5 493.1 963Path Forward: Met Target
English Learners and Former English Learners---- 17--
Low Income 493.8 494.7 0.9 496.3 512Recovery Path: Improved Below Target
Students with Disabilities 482.1 483.8 1.7 484.3 523Recovery Path: Met Target
American Indian or Alaska Native-------
Asian 519.8 524.4 4.6 522.7 674Recovery Path: Exceeded Target
Black or African American---- 15--
Hispanic or Latino 494.1 499.7 5.6 498.1 364Path Forward: Exceeded Target
Multi-Race, Not Hispanic or Latino---- 14--
Native Hawaiian or Other Pacific Islander-------
White 505.9 505.2 -0.7 508.0 2070Recovery Path: Declined

Science achievement - MCAS average composite scaled score - Non-high school
Group 2025 Achievement 2026 Achievement Change 2026 Target N Points Reason
All Students 504.2 503.8 -0.4 506.9 8173Path Forward: Met Target
Lowest Performing---- 201--
High Needs 491.8 490.7 -1.1 494.8 3250Path Forward: Declined
English Learners and Former English Learners 493.8 489.1 -4.7 497.0 960Path Forward: Declined
Low Income 492.6 489.2 -3.4 495.9 1520Path Forward: Declined
Students with Disabilities 484.8 484.1 -0.7 488.2 1940Path Forward: Declined
American Indian or Alaska Native-------
Asian 513.3 510.5 -2.8 517.0 1674Path Forward: Exceeded Target
Black or African American 500.8 488.7 -12.1 504.3 360Path Forward: Declined
Hispanic or Latino 491.5 489.8 -1.7 493.5 650Recovery Path: Declined
Multi-Race, Not Hispanic or Latino 514.6 510.2 -4.4 517.3 394Path Forward: Exceeded Target
Native Hawaiian or Other Pacific Islander---- 1--
White 503.2 504.1 0.9 505.8 5093Path Forward: Met Target

Science achievement - MCAS average composite scaled score - High school
Group 2025 Achievement 2026 Achievement Change 2026 Target N Points Reason
All Students 501.1 505.6 4.5 504.3 3214Recovery Path: Exceeded Target
Lowest Performing---- 71--
High Needs 483.9 490.0 6.1 486.1 884Recovery Path: Exceeded Target
English Learners and Former English Learners---- 11--
Low Income 484.6 493.7 9.1 488.1 474Recovery Path: Exceeded Target
Students with Disabilities 480.8 482.0 1.2 483.9 492Path Forward: Improved Below Target
American Indian or Alaska Native-------
Asian 510.4 516.5 6.1 513.3 644Recovery Path: Exceeded Target
Black or African American---- 15--
Hispanic or Latino 481.9 499.4 17.5 485.0 334Path Forward: Exceeded Target
Multi-Race, Not Hispanic or Latino---- 12--
Native Hawaiian or Other Pacific Islander-------
White 502.4 502.4 0.0 504.9 1971Recovery Path: No Change

English language arts growth - Non-high school
Group 2026 Mean SGP N Points Reason
All Students 50.9 1,8943Typical Growth - High
Lowest Performing 49.3 4512Typical Growth - Low
High Needs 48.3 7192Typical Growth - Low
English Learners and Former English Learners 53.4 2053Typical Growth - High
Low Income 46.8 3542Typical Growth - Low
Students with Disabilities 45.8 4102Typical Growth - Low
American Indian or Alaska Native- 5--
Asian 56.8 3733Typical Growth - High
Black or African American 46.1 692Typical Growth - Low
Hispanic or Latino 47.6 1582Typical Growth - Low
Multi-Race, Not Hispanic or Latino 55.3 783Typical Growth - High
Native Hawaiian or Other Pacific Islander- 1--
White 49.4 1,2102Typical Growth - Low

English language arts growth - High school
Group 2026 Mean SGP N Points Reason
All Students 54.7 3163Typical Growth - High
Lowest Performing 56.4 733Typical Growth - High
High Needs 49.3 852Typical Growth - Low
English Learners and Former English Learners- 12--
Low Income 48.5 462Typical Growth - Low
Students with Disabilities 47.3 442Typical Growth - Low
American Indian or Alaska Native----
Asian 64.1 634Exceeded Typical Growth
Black or African American- 15--
Hispanic or Latino 53.5 333Typical Growth - High
Multi-Race, Not Hispanic or Latino- 14--
Native Hawaiian or Other Pacific Islander----
White 50.8 1913Typical Growth - High

Mathematics growth - Non-high school
Group 2026 Mean SGP N Points Reason
All Students 51.9 1,9263Typical Growth - High
Lowest Performing 47.2 4512Typical Growth - Low
High Needs 49.1 7312Typical Growth - Low
English Learners and Former English Learners 53.9 2093Typical Growth - High
Low Income 48.1 3552Typical Growth - Low
Students with Disabilities 45.6 4152Typical Growth - Low
American Indian or Alaska Native- 5--
Asian 56.8 3773Typical Growth - High
Black or African American 52.3 693Typical Growth - High
Hispanic or Latino 48.4 1592Typical Growth - Low
Multi-Race, Not Hispanic or Latino 52.7 793Typical Growth - High
Native Hawaiian or Other Pacific Islander- 2--
White 50.7 1,2353Typical Growth - High

Mathematics growth - High school
Group 2026 Mean SGP N Points Reason
All Students 56.6 3123Typical Growth - High
Lowest Performing 50.2 733Typical Growth - High
High Needs 52.1 833Typical Growth - High
English Learners and Former English Learners- 12--
Low Income 52.1 463Typical Growth - High
Students with Disabilities 45.3 422Typical Growth - Low
American Indian or Alaska Native----
Asian 59.0 633Typical Growth - High
Black or African American- 15--
Hispanic or Latino 57.0 333Typical Growth - High
Multi-Race, Not Hispanic or Latino- 12--
Native Hawaiian or Other Pacific Islander----
White 56.1 1893Typical Growth - High

Four-year cohort graduation rate - High school
Group 2024 Rate (%) 2025 Rate (%) Change Target (%) N Points Reason
All Students 93.9 96.0 2.1 95.0 3474Exceeded Target
Lowest Performing-------
High Needs 85.5 93.0 7.5 89.8 1284Exceeded Target
English Learners and Former English Learners---- 15--
Low Income 85.4 94.4 9.0 90.0 904Exceeded Target
Students with Disabilities 77.9 86.0 8.1 84.0 574Exceeded Target
American Indian or Alaska Native---- 1--
Asian 100.0 100.0 0.0 95.0 634Exceeded Target
Black or African American---- 15--
Hispanic or Latino 96.0 96.3 0.3 95.0 274Exceeded Target
Multi-Race, Not Hispanic or Latino---- 15--
Native Hawaiian or Other Pacific Islander---- 2--
White 93.4 95.5 2.1 95.0 2243Met Target

Extended engagement rate - High school
Group 2023 Rate (%) 2024 Rate (%) Change Target (%) N Points Reason
All Students 96.9 98.3 1.4 95.0 3634Exceeded Target
Lowest Performing-------
High Needs 92.1 95.9 3.8 95.0 1454Exceeded Target
English Learners and Former English Learners---- 11--
Low Income 86.0 95.1 9.1 89.8 1034Exceeded Target
Students with Disabilities 94.7 95.6 0.9 95.0 684Exceeded Target
American Indian or Alaska Native-------
Asian 98.1 100.0 1.9 95.0 694Exceeded Target
Black or African American---- 20--
Hispanic or Latino---- 25--
Multi-Race, Not Hispanic or Latino---- 7--
Native Hawaiian or Other Pacific Islander-------
White 97.4 98.8 1.4 95.0 2424Exceeded 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 1,4023Met Target
Lowest Performing-------
High Needs 0.7 1.0 0.3 1.0 3903Met Target
English Learners and Former English Learners---- 31--
Low Income 0.9 1.4 0.5 1.0 2100Declined
Students with Disabilities 0.9 0.9 0.0 1.0 2123Met Target
American Indian or Alaska Native---- 2--
Asian 0.0 0.0 0.0 1.0 2654Exceeded Target
Black or African American---- 65--
Hispanic or Latino 0.9 0.0 -0.9 1.0 1334Exceeded Target
Multi-Race, Not Hispanic or Latino---- 57--
Native Hawaiian or Other Pacific Islander---- 2--
White 0.2 0.3 0.1 1.0 8783Met Target

Progress toward attaining English language proficiency - Non-high school
Group 2025 Rate (%) 2026 Rate (%) Change Target N Points Reason
All Students 65.8 73.3 7.5 66.8 1804Exceeded Target
Lowest Performing-------
High Needs-------
English Learners and Former English Learners 65.8 73.3 7.5 66.8 1804Exceeded Target
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 31.3 22.6 -8.7 38.3 310Declined
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 7.6 7.0 -0.6 6.6 3,2353Met Target
Lowest Performing 7.9 9.5 1.6 5.8 4510Declined
High Needs 12.6 11.6 -1.0 10.8 1,3242Improved Below Target
English Learners and Former English Learners 9.0 9.7 0.7 6.5 4310Declined
Low Income 19.2 16.5 -2.7 16.8 6603Met Target
Students with Disabilities 12.3 10.9 -1.4 9.9 7052Improved Below Target
American Indian or Alaska Native---- 7--
Asian 5.9 6.4 0.5 3.8 6243Met Target
Black or African American 4.4 4.1 -0.3 1.9 1454Exceeded Target
Hispanic or Latino 15.3 13.4 -1.9 12.4 3072Improved Below Target
Multi-Race, Not Hispanic or Latino 6.9 6.9 0.0 5.9 1441No Change
Native Hawaiian or Other Pacific Islander---- 7--
White 7.3 6.4 -0.9 6.1 2,0013Met Target

Chronic absenteeism - High school
Group 2025 Rate (%) 2026 Rate (%) Change Target N Points Reason
All Students 12.3 12.9 0.6 10.7 1,4870Declined
Lowest Performing 17.6 19.2 1.6 12.3 730Declined
High Needs 27.6 26.3 -1.3 24.7 4792Improved Below Target
English Learners and Former English Learners---- 78--
Low Income 31.6 28.8 -2.8 27.1 2742Improved Below Target
Students with Disabilities 32.5 28.6 -3.9 29.0 2693Met Target
American Indian or Alaska Native---- 2--
Asian 5.2 5.2 0.0 2.4 2874Exceeded Target
Black or African American---- 71--
Hispanic or Latino 20.7 26.0 5.3 16.3 1500Declined
Multi-Race, Not Hispanic or Latino---- 59--
Native Hawaiian or Other Pacific Islander---- 4--
White 11.9 12.6 0.7 10.1 9140Declined

Advanced coursework completion - High school
Group 2025 Rate (%) 2026 Rate (%) Change Target N Points Reason
All Students 98.1 97.0 -1.1 95.0 7224Exceeded Target
Lowest Performing-------
High Needs 93.8 91.5 -2.3 95.0 2114Exceeded Target
English Learners and Former English Learners---- 33--
Low Income 95.6 88.3 -7.3 95.0 1203Met Target
Students with Disabilities 89.3 88.9 -0.4 95.0 1173Met Target
American Indian or Alaska Native---- 1--
Asian 100.0 98.6 -1.4 95.0 1384Exceeded Target
Black or African American---- 34--
Hispanic or Latino 95.0 90.4 -4.6 95.0 734Exceeded Target
Multi-Race, Not Hispanic or Latino---- 25--
Native Hawaiian or Other Pacific Islander---- 1--
White 98.0 97.1 -0.9 95.0 4504Exceeded 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 2,741 2,70199Yes 1 2,742 2,72399Yes 1 1,173 1,15999Yes 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 1,054 1,038 1,054 1,041 434 423 2,542 2,50298Yes1
English Learners and Former English Learners 303 299 302 301 117 115 722 71599Yes1
Low Income 507 503 506 502 207 204 1,220 1,20999Yes1
Students with Disabilities 596 584 597 584 256 246 1,449 1,41498Yes1
American Indian or Alaska Native 5 5 5 5 0 0 10----
Asian 536 533 535 534 236 236 1,307 1,303100Yes1
Black or African American 113 113 114 112 54 53 281 27899Yes1
Hispanic or Latino 251 248 251 251 101 100 603 59999Yes1
Multi-Race, Not Hispanic or Latino 118 116 118 116 55 53 291 28598Yes1
Native Hawaiian or Other Pacific Islander 3 3 3 3 1 1 7----
White 1,715 1,683 1,716 1,702 726 716 4,157 4,10199Yes1

School Accountability Information
School Accountability information School accountability percentile
Byam SchoolNot requiring assistance or intervention 84
Center Elementary SchoolNot requiring assistance or intervention 82
Charles D HarringtonNot requiring assistance or intervention 57
Chelmsford HighRequiring assistance or intervention 83
Col Moses Parker SchoolNot requiring assistance or intervention 72
Community Education CenterInsufficient data-
McCarthy Middle SchoolNot requiring assistance or intervention 71
South RowNot requiring assistance or intervention 79



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