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

Billerica vs Somerville Schools

How the two districts, about 14 miles apart, compare on test scores, high school results, classrooms, spending and housing.

The short answer

  • Overall: Billerica ranks higher, #132 to Somerville's #143 of 328 Massachusetts districts.
  • MCAS 2026: Billerica students score higher: ELA 42% vs 40%, Math 42% vs 37% met expectations. Statewide: 41% and 41%.
  • SAT: Somerville averages 46 points higher (1175 vs 1129).
  • Spending: Somerville spends $7,229 more per student ($28,407 vs $21,177).
  • Homes: Homes cost more in Somerville: single-family homes average $854K vs $645K. The average tax bill is $7,484 in Billerica and $9,376 in Somerville.
  • Class size: Smaller in Somerville: 14.6 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 ArtsBillerica ahead
Billerica
42%
Somerville
40%
State
41%
MathBillerica ahead
Billerica
42%
Somerville
37%
State
41%
ELA by year
YearBillericaSomervilleState
202642%40%41%
202546%40%42%
202446%40%41%
202347%41%44%
202244%42%43%
202151%43%48%
Math by year
YearBillericaSomervilleState
202642%37%41%
202545%33%41%
202445%33%42%
202342%34%42%
202241%34%40%
202136%26%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 SATSomerville ahead
Billerica
1129
Somerville
1175
MA avg
1113
AP exams scored 3+Billerica ahead
Billerica
76%
Somerville
75%
MA avg
69.1%
Four-year graduation rateBillerica ahead
Billerica
94.7%
Somerville
87.5%
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
Somerville
14.6
MA avg
17.3
Attendance rateBillerica ahead
Billerica
94.5%
Somerville
92.8%
MA avg
93.7%
Chronically absentmissed 10%+ of daysLower in Billerica
Billerica
12.7%
Somerville
19.3%
MA avg
16.9%
Teachers who stayedfrom last yearBillerica ahead
Billerica
92.9%
Somerville
83%
MA avg
84.7%
Spending per studentHigher in Somerville
Billerica
$21,177
Somerville
$28,407
MA median
$21,765
Average teacher salaryHigher in Billerica
Billerica
$108,203
Somerville
$104,743
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

BillericaSomerville
Students in classes5,0004,937
English learners3.9%24.7%
Students with disabilities20.6%20%
White64.4%39.7%
Asian11.3%6%
Hispanic/Latino12.3%38.4%
Black/African American7.9%8.4%
Multi-race3.6%7.2%

Homes & taxes

Average single-family home valueHigher in Somerville
Billerica
$645K
Somerville
$854K
MA median
$588K
Average property tax billHigher in Somerville
Billerica
$7,484
Somerville
$9,376
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
Somerville
Middlesex County · Greater Boston — Inside I-95
Avg single-family home value$854KMA median $588K
Avg property tax bill$9,376MA median $6,814
Tax rate$11.00 per $1,000MA median $12.40
Income per person$59,412MA median $47,872
Local kids in public school90.3%
Town bond ratingAAA
Free cash reserves6.1% 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