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

Billerica vs Concord-Carlisle Schools

How the two districts, about 7 miles apart, compare on test scores, high school results, classrooms, spending and housing.

The short answer

  • Overall: Concord-Carlisle ranks higher, #11 to Billerica's #132 of 328 Massachusetts districts.
  • MCAS 2026: Concord-Carlisle students score higher: ELA 70% vs 42%, Math 73% vs 42% met expectations. Statewide: 41% and 41%.
  • SAT: Concord-Carlisle averages 148 points higher (1277 vs 1129).
  • Spending: Concord-Carlisle spends $9,531 more per student ($30,709 vs $21,177).
  • Homes: Homes cost more in Concord-Carlisle: single-family homes average $1.46M vs $645K. The average tax bill is $7,484 in Billerica and $18,948 in Concord-Carlisle.
  • Class size: Smaller in Concord-Carlisle: 16.4 students on average vs 19.1.

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 ArtsConcord-Carlisle ahead
Billerica
42%
Concord-Carlisle
70%
State
41%
MathConcord-Carlisle ahead
Billerica
42%
Concord-Carlisle
73%
State
41%
ELA by year
YearBillericaConcord-CarlisleState
202642%70%41%
202546%75%42%
202446%73%41%
202347%75%44%
202244%71%43%
202151%74%48%
Math by year
YearBillericaConcord-CarlisleState
202642%73%41%
202545%72%41%
202445%74%42%
202342%71%42%
202241%69%40%
202136%65%35%

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

High school results

Average SATConcord-Carlisle ahead
Billerica
1129
Concord-Carlisle
1277
MA avg
1113
AP exams scored 3+Concord-Carlisle ahead
Billerica
76%
Concord-Carlisle
96.3%
MA avg
69.1%
Four-year graduation rateConcord-Carlisle ahead
Billerica
94.7%
Concord-Carlisle
97.5%
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 Billerica
Billerica
19.1
Concord-Carlisle
16.4
MA avg
17.3
Attendance rateAbout the same
Billerica
94.5%
Concord-Carlisle
95.1%
MA avg
93.7%
Chronically absentmissed 10%+ of daysLower in Concord-Carlisle
Billerica
12.7%
Concord-Carlisle
10.6%
MA avg
16.9%
Teachers who stayedfrom last yearBillerica ahead
Billerica
92.9%
Concord-Carlisle
88.9%
MA avg
84.7%
Spending per studentHigher in Concord-Carlisle
Billerica
$21,177
Concord-Carlisle
$30,709
MA median
$21,765
Average teacher salaryHigher in Concord-Carlisle
Billerica
$108,203
Concord-Carlisle
$126,051
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

BillericaConcord-Carlisle
Students in classes5,0001,198
English learners3.9%0.8%
Students with disabilities20.6%16%
White64.4%73.3%
Asian11.3%9.8%
Hispanic/Latino12.3%5.8%
Black/African American7.9%3.6%
Multi-race3.6%7.2%

Homes & taxes

Average single-family home valueHigher in Concord-Carlisle
Billerica
$645K
Concord-Carlisle
$1.46M
MA median
$588K
Average property tax billHigher in Concord-Carlisle
Billerica
$7,484
Concord-Carlisle
$18,948
MA median
$6,814
Billerica
Middlesex County · North Shore & Merrimack Valley
Avg single-family home value$645KMA median $588K
Avg property tax bill$7,484MA median $6,814
Tax rate$11.60 per $1,000MA median $12.40
Income per person$50,638MA median $47,872
Local kids in public school97.5%
Town bond ratingAA+
Free cash reserves2.5% of budget
Carlisle
Middlesex County · Greater Boston — I-95 to I-495
Avg single-family home value$1.36MMA median $588K
Avg property tax bill$17,379MA median $6,814
Tax rate$12.80 per $1,000MA median $12.40
Income per person$156,484MA median $47,872
Local kids in public school91.3%
Free cash reserves12.7% of budget
Concord
Middlesex County · Greater Boston — I-95 to I-495
Avg single-family home value$1.57MMA median $588K
Avg property tax bill$20,517MA median $6,814
Tax rate$13.10 per $1,000MA median $12.40
Income per person$171,701MA median $47,872
Local kids in public school84.2%

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