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Millstone River School

Q: Is Millstone River School a good school?

Millstone River School ranks 296 th of 1347 New Jersey elementary schools. SchoolDigger rates this school 4 stars out of 5.

Public Grades 3-5

296^th

SchoolDigger Rank ?

of 1,347 New Jersey Elementary Schools

Better than 78% of New Jersey elementary schools

Summary

Millstone River School is an elementary school located in Plainsboro, New Jersey, serving grades 3-5 with a total enrollment of 813 students. It is part of the West Windsor-Plainsboro Regional School District, which is ranked 92 out of 609 districts in New Jersey and has a 4-star rating from SchoolDigger.

Millstone River School consistently ranks among the top 25% of elementary schools in New Jersey, with a statewide ranking between 125 and 296 over the past 10 years. The school's performance on NJSLA (New Jersey Student Learning Assessment) tests is generally higher than the state average, particularly in English Language Arts (ELA) and Mathematics. In 2024-2025, Millstone River School's ELA proficiency rates for grades 3-5 ranged from 45.6% to 74.2%, compared to the state average of 44.9% to 52.7%. In the same year, the school's Mathematics proficiency rates for grades 3-5 ranged from 64.1% to 69.2%, compared to the state average of 46.7% to 49.8%. The school's performance on the NJSLA-S (Science) assessment for 5th grade is also strong, with a proficiency rate of 54% in 2024-2025, compared to the state average of 30.1%.

Millstone River School's performance is particularly strong for English Language Learner (ELL) students, with rankings in the top 20% of New Jersey elementary schools for this subgroup. The school's performance for Asian and African American students is also above average, with rankings in the top 50% of New Jersey elementary schools. However, the school's performance for White students and students from low socioeconomic backgrounds is relatively lower, with rankings in the bottom 50% of New Jersey elementary schools. Millstone River School's academic performance is generally on par with or slightly lower than the other elementary schools in the West Windsor-Plainsboro Regional School District, such as Village Elementary School and Dutch Neck Elementary School.

772

Students ?

9.2

Student/teacher ratio ?

$12,449

Per pupil spending ?

10.5%

Free/discounted lunch ?

75 Grovers Mill Road
Plainsboro, NJ 08536

(609) 716-5500

District: West Windsor-Plainsboro Regional School District

Students who attend Millstone River School usually attend:

Middle:	Thomas R Grover Middle School
High:	West Windsor-Plainsboro High School South

Racial breakdown:

Asian:

76.4%

White:

8.2%

Hispanic:

5.2%

See top rated New Jersey elementary schools

Compare Millstone River School to nearby elementary schools!

At a glance

▼ Ranking trend: Declining — 95th percentile in 2015 → 78th in 2025

Strengths

✓Test scores above the New Jersey average (64% vs 46% meeting standards)

✓Ranks in the top 22% of New Jersey elementary schools

✓Small classes — about 9 students per teacher

Worth a look

!Ranking has slipped — down 17 percentile points since 2015

!Some student groups rank well below the school's overall statewide standing

!Near the bottom of West Windsor-Plainsboro Regional School District's ranking

Students meeting standards (2024-2025) ?

This school64%

District avg69%

New Jersey avg46%

296^th of 1,347

New Jersey public elementary schools ?

Top 22%▼ down 17 pts since 2015

From top 5% (2015) to top 22% (2025)

See the entire ranking list of New Jersey Elementary Schools →

★★★★★

SchoolDigger rating ?

3^rd of 4Elementary Schools in the West Windsor-Plainsboro Regional School District

92^nd of 609West Windsor-Plainsboro Regional School District among New Jersey 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	New Jersey percentile	Rating
2025	79.3	296 of 1347	78.0%	★★★★☆
2024	80.1	281 of 1338	79.0%	★★★★☆
2023	81.7	245 of 1342	81.7%	★★★★☆
2022	82.6	247 of 1345	81.6%	★★★★☆
2021	90.0	125 of 1317	90.5%	★★★★★
2019	78.5	293 of 1360	78.5%	★★★★☆
2018	84.3	190 of 1353	86.0%	★★★★☆
2017	87.6	136 of 1352	89.9%	★★★★★
2016	91.3	80 of 1346	94.1%	★★★★★
2015	92.6	62 of 1357	95.4%	★★★★★
2014	84.6	121 of 1363	91.1%	★★★★★
2013	85.2	96 of 1367	93.0%	★★★★★
2012	82.9	130 of 1363	90.5%	★★★★★
2011	83.8	114 of 1360	91.6%	★★★★★
2010	81.3	171 of 1354	87.4%	★★★★☆
2009	81.3	172 of 1346	87.2%	★★★★☆
2008	78.3	213 of 1338	84.1%	★★★★☆
2007	75.9	263 of 1329	80.2%	★★★★☆
2006	77.4	257 of 1314	80.4%	★★★★☆
2005	75.9	296 of 1303	77.3%	★★★★☆
2004	81.9	138 of 1298	89.4%	★★★★☆
2003	77.2	297 of 1204	75.3%	★★★★☆

African American

Year	Avg score	Statewide rank	New Jersey percentile	Rating
2025	44.9	233 of 463	49.7%	★★★☆☆
2024	50.4	211 of 469	55.0%	★★★☆☆
2023	54.7	191 of 463	58.7%	★★★☆☆
2022	46.1	256 of 494	48.2%	★★☆☆☆
2021	62.7	112 of 456	75.4%	★★★★☆
2019	31.6	395 of 522	24.3%	★☆☆☆☆

Asian

Year	Avg score	Statewide rank	New Jersey percentile	Rating
2025	39.7	223 of 330	32.4%	★★☆☆☆
2024	38.1	227 of 340	33.2%	★★☆☆☆
2023	44.4	206 of 346	40.5%	★★☆☆☆
2022	45.3	206 of 348	40.8%	★★☆☆☆
2021	51.6	167 of 339	50.7%	★★★☆☆
2019	39.4	237 of 370	35.9%	★★☆☆☆
2018	54.6	178 of 370	51.9%	★★★☆☆

English Language Learner

Year	Avg score	Statewide rank	New Jersey percentile	Rating
2025	80.3	100 of 597	83.2%	★★★★☆
2024	89.0	56 of 559	90.0%	★★★★★
2023	85.1	66 of 499	86.8%	★★★★☆
2022	83.9	69 of 489	85.9%	★★★★☆
2021	86.2	40 of 411	90.3%	★★★★★
2019	79.8	73 of 463	84.2%	★★★★☆
2018	64.9	119 of 434	72.6%	★★★★☆

Female

Year	Avg score	Statewide rank	New Jersey percentile	Rating
2025	78.9	283 of 1326	78.7%	★★★★☆
2024	79.2	280 of 1317	78.7%	★★★★☆
2023	78.7	273 of 1318	79.3%	★★★★☆
2022	80.0	263 of 1326	80.2%	★★★★☆
2021	88.9	111 of 1290	91.4%	★★★★★
2019	78.4	269 of 1331	79.8%	★★★★☆
2018	80.8	228 of 1333	82.9%	★★★★☆

Hispanic

Year	Avg score	Statewide rank	New Jersey percentile	Rating
2025	49.7	469 of 1032	54.6%	★★★☆☆
2024	50.2	441 of 989	55.4%	★★★☆☆
2023	53.3	401 of 982	59.2%	★★★☆☆
2022	21.8	759 of 953	20.4%	★☆☆☆☆
2021	30.8	664 of 896	25.9%	★☆☆☆☆
2019	27.4	658 of 899	26.8%	★☆☆☆☆
2018	19.8	705 of 870	19.0%	★☆☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	New Jersey percentile	Rating
2025	37.3	689 of 1023	32.6%	★★☆☆☆
2024	29.9	673 of 939	28.3%	★☆☆☆☆
2023	32.1	619 of 910	32.0%	★★☆☆☆
2022	68.6	192 of 863	77.8%	★★★★☆
2021	13.3	747 of 839	11.0%	★☆☆☆☆
2019	22.4	736 of 948	22.4%	★☆☆☆☆
2018	26.0	773 of 942	17.9%	★☆☆☆☆

Male

Year	Avg score	Statewide rank	New Jersey percentile	Rating
2025	78.1	285 of 1318	78.4%	★★★★☆
2024	79.4	272 of 1313	79.3%	★★★★☆
2023	83.1	224 of 1315	83.0%	★★★★☆
2022	83.6	210 of 1324	84.1%	★★★★☆
2021	89.3	123 of 1297	90.5%	★★★★★
2019	77.1	298 of 1335	77.7%	★★★★☆
2018	85.6	157 of 1334	88.2%	★★★★☆

Special Education

Year	Avg score	Statewide rank	New Jersey percentile	Rating
2025	56.1	347 of 1023	66.1%	★★★☆☆
2024	54.5	357 of 989	63.9%	★★★☆☆
2023	51.9	378 of 958	60.5%	★★★☆☆
2022	57.9	325 of 949	65.8%	★★★☆☆
2021	54.7	317 of 868	63.5%	★★★☆☆
2019	58.1	360 of 1007	64.3%	★★★☆☆
2018	57.5	360 of 1001	64.0%	★★★☆☆

White

Year	Avg score	Statewide rank	New Jersey percentile	Rating
2025	26.9	747 of 970	23.0%	★☆☆☆☆
2024	24.9	770 of 963	20.0%	★☆☆☆☆
2023	40.8	592 of 975	39.3%	★★☆☆☆
2022	41.7	593 of 976	39.2%	★★☆☆☆
2021	39.5	593 of 964	38.5%	★★☆☆☆
2019	49.3	535 of 1023	47.7%	★★☆☆☆
2018	48.5	554 of 1022	45.8%	★★☆☆☆

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)

English Language Learner (2025)83rd percentile+5 vs school

Female (2025)79th percentile~ school

Male (2025)78th percentile~ school

Special Education (2025)66th percentile-12 vs school

Hispanic (2025)55th percentile-23 vs school

African American (2025)50th percentile-28 vs school

Low Socio Economic Status (2025)33rd percentile-45 vs school

Asian (2025)32nd percentile-46 vs school

White (2025)23rd percentile-55 vs school

By subject vs New Jersey (2024-2025) ?

Mathematics67%+20 vs state

English Language Arts65%+15 vs state

Science54%+24 vs state

★

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Schools Near Millstone River 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 (2025)				Ranking (2024)				NJSLA-S Science (2025)		NJSLA English Language Arts (2025)						NJSLA Mathematics (2025)						NJSLA Algebra I (2025)			NJSLA Geometry (2025)		Per Pupil Expenditures (2019)
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	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	NJSLA-S Science 5th Grade	NJSLA-S Science 8th Grade	NJSLA English Language Arts 3rd Grade	NJSLA English Language Arts 4th Grade	NJSLA English Language Arts 5th Grade	NJSLA English Language Arts 6th Grade	NJSLA English Language Arts 7th Grade	NJSLA English Language Arts 8th Grade	NJSLA Mathematics 3rd Grade	NJSLA Mathematics 4th Grade	NJSLA Mathematics 5th Grade	NJSLA Mathematics 6th Grade	NJSLA Mathematics 7th Grade	NJSLA Mathematics 8th Grade	NJSLA Algebra I 7th Grade	NJSLA Algebra I 8th Grade	NJSLA Algebra I End of Course	NJSLA Geometry 8th Grade	NJSLA Geometry End of Course	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Millstone River School	Public	3-5	75 Grovers Mill Road	Plainsboro	08536	Middlesex County	West Windsor-Plainsboro Regional School District	No	(n/a)	No	Yes	(609) 716-5500	772	84	9.2	10.5%	63 (8.2%)	39 (5.1%)	40 (5.2%)	590 (76.4%)	6 (0.8%)	0 (0.0%)	34 (4.4%)	79.3	296^th of 1347 public elementary schools	78.0%		80.1	281^st of 1338 public elementary schools	79.0%	15	54.0		45.6	65.2	74.2				67.5	64.1	69.2									$12,449	$110	$12,339
J.V.B. Wicoff Elementary School	Public	K-3	510 Plainsboro Road	Plainsboro	08536	Middlesex County	West Windsor-Plainsboro Regional School District	No	(n/a)	No	No	(609) 716-5450	334	25	13.4	8.1%	35 (10.5%)	10 (3.0%)	27 (8.1%)	238 (71.3%)	5 (1.5%)	1 (0.3%)	18 (5.4%)	92.8	65^th of 1347 public elementary schools	95.2%		85.8	195^th of 1338 public elementary schools	85.4%	130			80.2						79.0											$12,430	$110	$12,320
Town Center Elementary School at Plainsboro	Public	PK, KG-3	700 Wyndhurst Drive	Plainsboro	08536	Middlesex County	West Windsor-Plainsboro Regional School District	No	(n/a)	No	Yes	(609) 716-8330	439	55	7.9	17.8%	30 (6.8%)	37 (8.4%)	34 (7.7%)	304 (69.2%)	5 (1.1%)	0 (0.0%)	29 (6.6%)								(n/a)																				$16,043	$110	$15,933
Maurice Hawk Elementary School	Public	PK, KG-3	303 305 Clarksville Road	West Windsor	08550	Mercer County	West Windsor-Plainsboro Regional School District	No	(n/a)	No	Yes	(609) 716-5425	723	63	11.4	11.3%	108 (14.9%)	46 (6.4%)	41 (5.7%)	438 (60.6%)	3 (0.4%)	0 (0.0%)	87 (12.0%)	90.2	111^th of 1347 public elementary schools	91.8%		83.8	223^rd of 1338 public elementary schools	83.3%	112			74.3						77.1											$11,332	$110	$11,222
Riverside School	Public	PK, KG-5	58 Riverside Drive	Princeton	08540	Mercer County	Princeton Public School District	No	(n/a)	No	No	(609) 806-4260	306	39	7.8	12.1%	139 (45.4%)	22 (7.2%)	34 (11.1%)	82 (26.8%)	1 (0.3%)	0 (0.0%)	28 (9.2%)	94.1	41^st of 1347 public elementary schools	97.0%		95.7	25^th of 1338 public elementary schools	98.1%	16	75.5		75.6	90.9	80.0				78.6	85.7	81.2									$17,874	$105	$17,769
Dutch Neck Elementary School	Public	K-3	392 Village Road East	West Windsor	08550	Mercer County	West Windsor-Plainsboro Regional School District	No	(n/a)	No	No	(609) 716-5400	557	50	11.1	8.6%	73 (13.1%)	32 (5.7%)	56 (10.1%)	353 (63.4%)	6 (1.1%)	0 (0.0%)	37 (6.6%)	78.7	306^th of 1347 public elementary schools	77.3%		77.8	308^th of 1338 public elementary schools	77.0%	2			58.2						72.4											$10,469	$161	$10,308
Littlebrook School	Public	PK, KG-5	39 Magnolia Lane	Princeton	08540	Mercer County	Princeton Public School District	No	(n/a)	No	No	(609) 806-4250	374	40	9.4	10.7%	147 (39.3%)	21 (5.6%)	26 (7.0%)	146 (39.0%)	0 (0.0%)	0 (0.0%)	34 (9.1%)	90.7	104^th of 1347 public elementary schools	92.3%		93.3	58^th of 1338 public elementary schools	95.7%	46	67.9		65.0	77.0	74.7				77.1	90.8	83.9									$13,695		$13,695
Village Elementary School	Public	4-5	601 New Village Road	West Windsor	08550	Mercer County	West Windsor-Plainsboro Regional School District	No	(n/a)	No	No	(609) 716-5200	657	58	11.2	7.6%	100 (15.2%)	28 (4.3%)	39 (5.9%)	443 (67.4%)	1 (0.2%)	1 (0.2%)	45 (6.8%)								(n/a)	59.0			75.9	72.9					77.3	72.6									$12,150	$110	$12,040
Cranbury School	Public	PK, KG-8	23 N Main St	Cranbury	08512	Middlesex County	Cranbury Township School District	No	(n/a)	No	Yes	(609) 395-1700	421	56	7.5	9.5%	211 (50.1%)	13 (3.1%)	42 (10.0%)	130 (30.9%)	0 (0.0%)	0 (0.0%)	25 (5.9%)	86.8	174^th of 1347 public elementary schools	87.1%		88.2	145^th of 1338 public elementary schools	89.2%	29	60.4	47.2	80.5	67.4	79.6	78.7	91.3	83.3	78.1	60.0	66.7	83.0	70.7	4.8	93.8	89.7	91.2	100.0	100.0	$18,574	$108	$18,466
Community Park School	Public	PK, KG-5	372 Witherspoon Street	Princeton	08540	Mercer County	Princeton Public School District	No	(n/a)	No	Yes	(609) 806-4230	316	28	11.2	17.1%	157 (49.7%)	15 (4.7%)	84 (26.6%)	32 (10.1%)	1 (0.3%)	0 (0.0%)	27 (8.5%)	79.6	289^th of 1347 public elementary schools	78.5%		80.6	272^nd of 1338 public elementary schools	79.7%	17	52.2		50.0	73.6	76.8				69.1	71.8	63.7									$14,862	$167	$14,695

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