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Swallow/Union School

Public Grades K-4

9^th

SchoolDigger Rank ?

of 899 Massachusetts Elementary Schools

Better than 99% of Massachusetts elementary schools

Summary

Swallow/Union School in Dunstable, MA is a small K–4 elementary school of about 210 students in the Groton-Dunstable district, and it posts some of the strongest results in Massachusetts. In 2025–2026 it ranked 9th of 899 elementary schools statewide — the 99th percentile, with 5 stars — a big jump from 109th of 906 the year before. That fits a long pattern: the school has been at the 94th percentile or higher in every listed year since 2015–2016, including 3rd place in 2021–2022 and 6th in 2020–2021.

MCAS results are exceptionally high. In 2025–2026, 73.4% of students were proficient in English Language Arts and 82.8% in Math, well above district figures (53.56% and 59.29%) and state figures (40.03% and 41.11%). Math is a particular strength, about 9.4 points above ELA, with grade-level results very consistent (3rd grade 82.61%, 4th grade 82.98%). No nearby school comes close. Tyngsborough Elementary, the closest school, had 33.43% in ELA and 43.75% in Math. The strongest nearby school, Abbot Elementary, was roughly 13 points lower in ELA and 12.7 points lower in Math. Even Florence Roche School, in the same district, trailed by 17.6 points in ELA and 18.1 points in Math.

Strength shows up across student groups too: male students ranked 6th of 879 and female students 32nd of 869 in 2025–2026, and special education students ranked 6th of 703 in 2022–2023. Class size is ordinary at 13:1 in 2024–2025, similar to nearby schools. A few caveats: per-student spending figures are several years old and should be read as context, no Science score exists because the school ends at grade 4, and free/reduced-lunch data is not reported, so income context is unknown rather than zero.

210

Students ?

13.0

Student/teacher ratio ?

$21,776

Per pupil spending ?

7.1%

Directly certified for free meals (2024-25) ?

All students in Massachusetts receive free school meals.

522 Main Street
Dunstable, MA 01827-0220

(978) 649-7281

District: Groton-Dunstable

Students who attend Swallow/Union School usually attend:

Middle:	Groton Dunstable Regional Middle
High:	Groton Dunstable Regional

Racial breakdown:

White:

81.4%

Asian:

7.6%

Hispanic:

5.7%

See top rated Massachusetts elementary schools

Compare Swallow/Union School to nearby elementary schools!

At a glance

▬ Ranking trend: Holding steady — 97th percentile in 2016 → 99th in 2026

Strengths

✓Test scores above the Massachusetts average (78% vs 41% meeting standards)

✓Ranks in the top 1% of Massachusetts elementary schools

Students meeting standards (2025-2026) ?

This school78%

District avg56%

Massachusetts avg41%

9^th of 899

Massachusetts public elementary schools ?

Top 1%▲ up 2 pts since 2016

See the entire ranking list of Massachusetts Elementary Schools →

★★★★★

SchoolDigger rating ?

1^st of 2Elementary Schools in the Groton-Dunstable

34^th of 351Groton-Dunstable among Massachusetts districts

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2026	96.6	9 of 899	99.0%	★★★★★
2025	86.7	109 of 906	88.0%	★★★★☆
2024	94.4	26 of 916	97.2%	★★★★★
2023	95.0	23 of 928	97.5%	★★★★★
2022	97.1	3 of 932	99.7%	★★★★★
2021	96.4	6 of 936	99.4%	★★★★★
2019	92.6	30 of 942	96.8%	★★★★★
2018	93.1	21 of 934	97.8%	★★★★★
2017	89.2	59 of 938	93.7%	★★★★★
2016	92.0	25 of 932	97.3%	★★★★★
2015	78.5	183 of 914	80.0%	★★★★☆
2014	91.1	23 of 926	97.5%	★★★★★
2013	85.9	88 of 928	90.5%	★★★★★
2012	91.9	28 of 930	97.0%	★★★★★
2011	90.1	40 of 924	95.7%	★★★★★
2010	88.3	64 of 920	93.0%	★★★★★
2009	91.1	33 of 909	96.4%	★★★★★
2008	82.4	137 of 908	84.9%	★★★★☆
2007	75.4	223 of 911	75.5%	★★★★☆
2006	58.4	400 of 911	56.1%	★★★☆☆
2005	63.2	353 of 887	60.2%	★★★☆☆
2004	72.7	261 of 882	70.4%	★★★★☆
2003	85.2	108 of 884	87.8%	★★★★☆

Disabled

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2019	84.8	57 of 665	91.4%	★★★★★
2018	98.2	2 of 656	99.7%	★★★★★

Female

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2026	93.3	32 of 869	96.3%	★★★★★
2025	76.1	196 of 869	77.4%	★★★★☆
2024	87.9	74 of 886	91.6%	★★★★★
2023	90.6	54 of 887	93.9%	★★★★★
2022	96.4	6 of 901	99.3%	★★★★★
2021	94.2	19 of 898	97.9%	★★★★★
2019	88.8	63 of 902	93.0%	★★★★★
2018	91.0	34 of 893	96.2%	★★★★★

Male

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2026	97.1	6 of 879	99.3%	★★★★★
2025	91.5	50 of 884	94.3%	★★★★★
2024	96.5	5 of 891	99.4%	★★★★★
2023	95.4	15 of 896	98.3%	★★★★★
2022	95.7	10 of 908	98.9%	★★★★★
2021	96.6	4 of 904	99.6%	★★★★★
2019	92.4	25 of 907	97.2%	★★★★★
2018	90.6	45 of 898	95.0%	★★★★★

Special Education

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2024	91.0	26 of 731	96.4%	★★★★★
2023	97.9	6 of 703	99.1%	★★★★★
2022	90.7	36 of 905	96.0%	★★★★★
2021	93.5	25 of 894	97.2%	★★★★★
2019	72.1	169 of 896	81.1%	★★★★☆
2018	91.0	32 of 886	96.4%	★★★★★

Tested In Person

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2021	96.9	4 of 925	99.6%	★★★★★

White

Year	Avg score	Statewide rank	Massachusetts percentile	Rating
2026	92.8	22 of 734	97.0%	★★★★★
2025	79.0	120 of 737	83.7%	★★★★☆
2024	91.2	26 of 753	96.5%	★★★★★
2023	91.3	31 of 762	95.9%	★★★★★
2022	95.0	9 of 764	98.8%	★★★★★
2021	92.3	14 of 765	98.2%	★★★★★
2019	89.6	30 of 780	96.2%	★★★★★
2018	89.5	30 of 772	96.1%	★★★★★

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

Tested In Person (2021)100th percentile~ school

Male (2026)99th percentile~ school

White (2026)97th percentile~ school

Special Education (2024)96th percentile~ school

Female (2026)96th percentile-3 vs school

Disabled (2019)91st percentile-5 vs school

By subject vs Massachusetts (2025-2026) ?

Mathematics83%+42 vs state

English Language Arts73%+33 vs state

5.0

2 ratings · 2 written reviews

5★2

4★0

3★0

2★0

1★0

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What people are saying

by a parent
Saturday, July 13, 2019

Great community! A very warm and welcoming school. Close Quote

by a parent
Wednesday, April 9, 2014

Dedicated, experienced teachers. Children are pushed to excel and encouraged to learn. Teachers expect parents to participate in educational process. Very happy place. No bullying, but can be a bit cliquish among students whose parents grew up together in the community. New arrivals are not immediately welcomed into community. Fairly anti-military sentiment among parents and some teachers. Close Quote

Schools Near Swallow/Union School

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Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2026)				Ranking (2025)				MCAS Next Generation English Language Arts (2026)				MCAS Next Generation Mathematics (2026)				MCAS Next Generation Science (2026)		Per Pupil Expenditures (2024)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Directly certified (2024-25)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	MCAS Next Generation English Language Arts 3rd Grade	MCAS Next Generation English Language Arts 4th Grade	MCAS Next Generation English Language Arts 5th Grade	MCAS Next Generation English Language Arts All Grades	MCAS Next Generation Mathematics 3rd Grade	MCAS Next Generation Mathematics 4th Grade	MCAS Next Generation Mathematics 5th Grade	MCAS Next Generation Mathematics All Grades	MCAS Next Generation Science 5th Grade	MCAS Next Generation Science All Grades	Total
Swallow/Union School	Public	K-4	522 Main Street	Dunstable	01827	Middlesex County	Groton-Dunstable	No	No	No	Yes	(978) 649-7281	210	16	13.0	7.1%	171 (81.4%)	3 (1.4%)	12 (5.7%)	16 (7.6%)	0 (0.0%)	0 (0.0%)	8 (3.8%)	96.6	9^th of 899 public elementary schools	99.0%		86.7	109^th of 906 public elementary schools	88.0%	100	76.6	70.2		73.4	82.6	83.0		82.8			$21,776
Tyngsborough Elementary	Public	PK, KG-5	205 Westford Road	Tyngsborough	01879	Middlesex County	Tyngsborough	No	No	No	Yes	(978) 649-1990	715	57	12.5	25.9%	457 (63.9%)	41 (5.7%)	90 (12.6%)	86 (12.0%)	1 (0.1%)	0 (0.0%)	40 (5.6%)	46.9	476^th of 899 public elementary schools	47.1%		41.7	533^rd of 906 public elementary schools	41.2%	57	40.8	25.6	35.9	33.4	35.0	41.7	53.9	43.8	48.7	48.7	$18,879
Rita E. Miller Elementary School	Public	PK, KG-2	1 Mitchell Way	Westford	01886	Middlesex County	Westford	No	No	No	Yes	(978) 392-4476	281	28	10.0	11.4%	111 (39.5%)	11 (3.9%)	28 (10.0%)	123 (43.8%)	1 (0.4%)	0 (0.0%)	7 (2.5%)								(n/a)											$22,783
Varnum Brook	Public	K-4	10 Hollis Street	Pepperell	01463	Middlesex County	North Middlesex	No	No	No	Yes	(978) 433-6722	606	43	14.0	29.7%	479 (79.0%)	21 (3.5%)	59 (9.7%)	25 (4.1%)	1 (0.2%)	0 (0.0%)	21 (3.5%)	50.8	449^th of 899 public elementary schools	50.1%		59.6	361^st of 906 public elementary schools	60.2%	88	40.7	37.7		39.2	44.7	47.4		46.0			$17,599
Nabnasset	Public	PK, KG-2	99 Plain Road	Westford	01886	Middlesex County	Westford	No	No	No	No	(978) 692-5583	345	27	12.6	7.0%	232 (67.2%)	6 (1.7%)	14 (4.1%)	79 (22.9%)	1 (0.3%)	0 (0.0%)	13 (3.8%)								(n/a)											$18,421
Day Elementary	Public	3-5	75 East Prescott Street	Westford	01886	Middlesex County	Westford	No	No	No	No	(978) 692-5591	299	23	13.0	13.7%	139 (46.5%)	15 (5.0%)	21 (7.0%)	120 (40.1%)	0 (0.0%)	1 (0.3%)	2 (0.7%)	77.6	199^th of 899 public elementary schools	77.9%		82	160^th of 906 public elementary schools	82.3%	39	55.3	43.9	53.1	50.5	61.2	64.3	59.2	61.6	62.5	62.5	$18,539
Florence Roche School	Public	K-4	342 Main Street	Groton	01450	Middlesex County	Groton-Dunstable	No	No	No	Yes	(978) 448-6665	615	44	13.9	10.4%	491 (79.8%)	12 (2.0%)	32 (5.2%)	59 (9.6%)	2 (0.3%)	0 (0.0%)	19 (3.1%)	82.1	151^st of 899 public elementary schools	83.2%		80.5	176^th of 906 public elementary schools	80.6%	25	61.1	51.5		55.8	62.8	66.2		64.7			$20,275
Charles D Harrington	Public	K-4	120 Richardson Rd	North Chelmsford	01863	Middlesex County	Chelmsford	No	No	No	Yes	(978) 251-5166	468	38	12.2	26.1%	264 (56.4%)	28 (6.0%)	59 (12.6%)	89 (19.0%)	1 (0.2%)	1 (0.2%)	26 (5.6%)	63.2	329^th of 899 public elementary schools	63.4%		57.5	381^st of 906 public elementary schools	57.9%	52	50.0	44.7		47.4	47.9	52.1		50.0			$17,030
Abbot Elementary	Public	3-5	25 Depot Street	Westford	01886	Middlesex County	Westford	No	No	No	No	(978) 692-5580	371	28	13.0	6.7%	268 (72.2%)	5 (1.3%)	9 (2.4%)	84 (22.6%)	1 (0.3%)	0 (0.0%)	4 (1.1%)	88.6	92^nd of 899 public elementary schools	89.8%		86	116^th of 906 public elementary schools	87.2%	24	58.6	63.5	59.0	60.2	62.2	76.2	71.7	70.1	73.9	73.9	$17,458
Pawtucketville Memorial	Public	PK, KG-4	425 West Meadow Road	Lowell	01854	Middlesex County	Lowell	No	No	No	Yes	(978) 937-7667	463	34	13.6	59.4%	124 (26.8%)	52 (11.2%)	151 (32.6%)	116 (25.1%)	1 (0.2%)	0 (0.0%)	19 (4.1%)	28.5	639^th of 899 public elementary schools	28.9%		31.6	619^th of 906 public elementary schools	31.7%	20	32.9	23.3		27.9	37.8	30.0		33.7			$22,717

Frequently Asked Questions about Swallow/Union School

What district is Swallow/Union School in?

Groton-Dunstable

What schools do graduates of Swallow/Union School attend?

Students who attend Swallow/Union School usually go on to attend:

Middle : Groton Dunstable Regional Middle
High : Groton Dunstable Regional

What is the racial makeup of Swallow/Union School?

Students at Swallow/Union School are 81% White, 8% Asian, 6% Hispanic, 4% Two or more races, 1% African American.

Is Swallow/Union School a good school?

Yes! Swallow/Union School is one of the best elementary schools in the state. It ranks 9^th of 899 Massachusetts elementary schools.

How many students attend Swallow/Union School?

In the 2024-25 school year, 210 students attended Swallow/Union School.

Rate Swallow/Union School!

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Latest Massachusetts data All new data »

2024–25 dropout rates & graduation ratesMar 5, 2026

2024–25 MCAS Next Generation test scoresSep 29, 2025

2023–24 school spending dataMay 8, 2025

2023–24 dropout rates & graduation ratesMay 1, 2025

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Massachusetts Department of Elementary and Secondary Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.