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School district comparison · MCAS 2026 · other data 2024-25

Acton-Boxborough vs Chelmsford Schools

How the two districts, about 10 miles apart, compare on test scores, high school results, classrooms, spending and housing.

The short answer

  • Overall: Acton-Boxborough ranks higher, #56 to Chelmsford's #83 of 328 Massachusetts districts.
  • MCAS 2026: Acton-Boxborough students score higher: ELA 67% vs 55%, Math 70% vs 56% met expectations. Statewide: 41% and 41%.
  • SAT: Acton-Boxborough averages 145 points higher (1334 vs 1189).
  • Spending: Acton-Boxborough spends $3,659 more per student ($22,300 vs $18,641).
  • Homes: Homes cost more in Acton-Boxborough: single-family homes average $936K vs $695K. The average tax bill is $14,796 in Acton-Boxborough and $9,219 in Chelmsford.

MCAS results, 2026

Share of students meeting or exceeding expectations, all tested grades combined. Both districts test grades 3–10; "State" is the statewide figure for the same grades.

English Language ArtsActon-Boxborough ahead
Acton-Boxborough
67%
Chelmsford
55%
State
41%
MathActon-Boxborough ahead
Acton-Boxborough
70%
Chelmsford
56%
State
41%
ELA by year
YearActon-BoxboroughChelmsfordState
202667%55%41%
202569%59%43%
202467%56%42%
202370%57%45%
202269%58%44%
202172%64%49%
Math by year
YearActon-BoxboroughChelmsfordState
202670%56%41%
202571%52%41%
202471%57%42%
202371%53%42%
202272%53%41%
202169%46%36%

No test in 2020. Statewide 10th-grade results dropped after 2024, when passing the MCAS stopped being a graduation requirement.

High school results

Average SATActon-Boxborough ahead
Acton-Boxborough
1334
Chelmsford
1189
MA avg
1113
AP exams scored 3+Acton-Boxborough ahead
Acton-Boxborough
95.5%
Chelmsford
86.9%
MA avg
69.1%
Four-year graduation rateActon-Boxborough ahead
Acton-Boxborough
98.3%
Chelmsford
96.6%
MA avg
92.4%

Averages of each district's ranked high schools. "MA avg" is the average of all districts with high school data.

Classrooms, teachers & spending

Average class sizeHigher in Acton-Boxborough
Acton-Boxborough
20.6
Chelmsford
18.8
MA avg
17.3
Attendance rateAbout the same
Acton-Boxborough
94.8%
Chelmsford
95.4%
MA avg
93.7%
Chronically absentmissed 10%+ of daysLower in Chelmsford
Acton-Boxborough
10.9%
Chelmsford
9%
MA avg
16.9%
Teachers who stayedfrom last yearAbout the same
Acton-Boxborough
90.3%
Chelmsford
89.8%
MA avg
84.7%
Spending per studentHigher in Acton-Boxborough
Acton-Boxborough
$22,300
Chelmsford
$18,641
MA median
$21,765
Average teacher salaryHigher in Acton-Boxborough
Acton-Boxborough
$100,138
Chelmsford
$90,640
MA median
$91,393

Spending is total per-pupil expenditure from all sources in FY2024. Class size is the average across all classes in the district.

Students

Acton-BoxboroughChelmsford
Students in classes5,1055,151
English learners7%5.1%
Students with disabilities16.9%20.3%
White49%62%
Asian31.9%19.2%
Hispanic/Latino9.5%9.4%
Black/African American3.3%4.4%
Multi-race6.2%4.5%

Homes & taxes

Average single-family home valueHigher in Acton-Boxborough
Acton-Boxborough
$936K
Chelmsford
$695K
MA median
$588K
Average property tax billHigher in Acton-Boxborough
Acton-Boxborough
$14,796
Chelmsford
$9,219
MA median
$6,814
Acton
Middlesex County · Greater Boston — I-95 to I-495
Avg single-family home value$938KMA median $588K
Avg property tax bill$15,220MA median $6,814
Tax rate$16.20 per $1,000MA median $12.40
Income per person$88,147MA median $47,872
Local kids in public school96.1%
Town bond ratingAAA
Free cash reserves5.4% of budget
Boxborough
Middlesex County · Greater Boston — I-95 to I-495
Avg single-family home value$934KMA median $588K
Avg property tax bill$14,372MA median $6,814
Tax rate$15.40 per $1,000MA median $12.40
Income per person$83,725MA median $47,872
Local kids in public school96.7%
Town bond ratingAAA
Free cash reserves14.1% of budget
Chelmsford
Middlesex County · North Shore & Merrimack Valley
Avg single-family home value$695KMA median $588K
Avg property tax bill$9,219MA median $6,814
Tax rate$13.30 per $1,000MA median $12.40
Income per person$67,479MA median $47,872
Local kids in public school97%
Town bond ratingAA+
Free cash reserves3% of budget

What could you afford in either town?

FY2026 averages for single-family homes from the Massachusetts Department of Revenue; for a district with several towns, the comparison uses the average of its towns. Assessed values usually run below recent sale prices.

The schools