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Costello Elementary School

Public Grades PK, KG-5

42^nd

SchoolDigger Rank ?

of 1,492 Michigan Elementary Schools

Better than 97% of Michigan elementary schools

Summary

Costello Elementary School in Troy, MI, is a top-rated public school serving 395 students in grades PK through 5, and it is part of the highly regarded Troy School District.

Costello is an academic standout, ranking 42nd out of 1,492 elementary schools statewide—placing it in the 97th percentile. This puts it ahead of nearby peers like Leonard Elementary (#85), Wass Elementary (#86), and Barnard Elementary (#125), and well above Martell Elementary (#163), Wattles Elementary (#208), and Hill Elementary (#255). What truly sets Costello apart is its 5th-grade science proficiency—74% of students are proficient, which is 34 points above the state average and the highest among all nearby schools. Social studies scores are equally impressive at 57.1% proficiency, more than double the state average. The school also shows consistent excellence across grades 3-5, with ELA proficiency ranging from 64.7% to 75.3% and math from 70.1% to 77.6%, indicating a strong, school-wide instructional approach rather than reliance on one standout grade.

Costello achieves these results while spending $15,647 per student—notably less than several lower-ranked district peers like Martell ($18,501) and Hill ($18,270), suggesting strong operational efficiency. The school also excels at serving all students, ranking in the 93rd percentile for students with low socio-economic status, showing that economic background does not predict success here. Chronic absenteeism is just 10.9%, well below the district average of 13% and less than half the state's 27.9%, reflecting strong family engagement. One area for growth is the Asian student subgroup, which ranks in the 76th percentile—still strong but lower than other subgroups. Overall, Costello delivers exceptional, equitable outcomes and is a clear leader among Troy elementary schools.

395

Students ?

16.4

Student/teacher ratio ?

$15,647

Per pupil spending ?

10.4%

Free/discounted lunch ?

1333 Hamman Dr
Troy, MI 48085-5036

(248) 823-3700

District: Troy School District

Students who attend Costello Elementary School usually attend:

Middle:	Larson Middle School
High:	Athens High School

Racial breakdown:

White:

54.9%

Asian:

30.6%

Hispanic:

6.3%

See top rated Michigan elementary schools

Compare Costello Elementary School to nearby elementary schools!

At a glance

▲ Ranking trend: Improving — 87th percentile in 2016 → 97th in 2026

Strengths

✓Test scores above the Michigan average (70% vs 38% meeting standards)

✓Ranks in the top 3% of Michigan elementary schools

✓Ranking is trending up — up 10 percentile points since 2016

Worth a look

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

Students meeting standards (2025-2026) ?

This school70%

District avg64%

Michigan avg38%

42^nd of 1,492

Michigan public elementary schools ?

Top 3%▲ up 10 pts since 2016

From top 13% (2016) to top 3% (2026)

See the entire ranking list of Michigan Elementary Schools →

★★★★★

SchoolDigger rating ?

3^rd of 12Elementary Schools in the Troy School District

36^th of 625Troy School District among Michigan 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	Michigan percentile	Rating
2026	95.8	42 of 1492	97.2%	★★★★★
2025	94.3	63 of 1488	95.8%	★★★★★
2024	92.5	73 of 1486	95.1%	★★★★★
2023	86.5	159 of 1470	89.2%	★★★★☆
2022	91.5	84 of 1344	93.8%	★★★★★
2021	81.2	166 of 1153	85.6%	★★★★☆
2019	83.5	174 of 1408	87.6%	★★★★☆
2018	80.5	263 of 1448	81.8%	★★★★☆
2017	78.6	235 of 1466	84.0%	★★★★☆
2016	83.2	194 of 1548	87.5%	★★★★☆
2015	91.8	73 of 1580	95.4%	★★★★★
2014	88.6	96 of 1533	93.7%	★★★★★
2013	90.1	77 of 1563	95.1%	★★★★★
2012	91.4	65 of 1566	95.8%	★★★★★
2011	83.5	76 of 1552	95.1%	★★★★★
2010	82.3	73 of 1552	95.3%	★★★★★
2009	80.7	186 of 1589	88.3%	★★★★☆
2008	82.6	130 of 1577	91.8%	★★★★★
2007	85.4	67 of 1565	95.7%	★★★★★
2006	84.8	73 of 1545	95.3%	★★★★★

Asian

Year	Avg score	Statewide rank	Michigan percentile	Rating
2026	77.6	24 of 100	76.0%	★★★★☆
2025	71.3	31 of 95	67.4%	★★★☆☆
2024	78.1	18 of 97	81.4%	★★★★☆
2023	52.1	51 of 84	39.3%	★★☆☆☆
2022	73.7	17 of 51	66.7%	★★★☆☆
2018	49.5	65 of 101	35.6%	★★☆☆☆

English Language Learner

Year	Avg score	Statewide rank	Michigan percentile	Rating
2026	83.1	27 of 188	85.6%	★★★★☆
2025	72.7	38 of 173	78.0%	★★★★☆
2024	82.8	25 of 184	86.4%	★★★★☆
2023	77.4	30 of 180	83.3%	★★★★☆
2022	93.2	7 of 98	92.9%	★★★★★

Female

Year	Avg score	Statewide rank	Michigan percentile	Rating
2026	96.4	25 of 1343	98.1%	★★★★★
2025	95.1	40 of 1338	97.0%	★★★★★
2024	85.7	129 of 1342	90.4%	★★★★★
2023	78.4	207 of 1321	84.3%	★★★★☆
2022	83.2	121 of 1106	89.1%	★★★★☆
2021	84.7	78 of 902	91.4%	★★★★★
2019	82.0	136 of 1171	88.4%	★★★★☆
2018	75.0	322 of 1443	77.7%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Michigan percentile	Rating
2026	85.8	99 of 1352	92.7%	★★★★★
2024	79.5	162 of 1381	88.3%	★★★★☆
2023	78.9	171 of 1350	87.3%	★★★★☆
2018	20.2	1186 of 1397	15.1%	★☆☆☆☆

Male

Year	Avg score	Statewide rank	Michigan percentile	Rating
2026	92.1	79 of 1372	94.2%	★★★★★
2025	90.4	93 of 1366	93.2%	★★★★★
2024	91.3	74 of 1347	94.5%	★★★★★
2023	85.1	142 of 1334	89.4%	★★★★☆
2022	91.8	55 of 1139	95.2%	★★★★★
2021	77.4	150 of 915	83.6%	★★★★☆
2019	83.9	126 of 1196	89.5%	★★★★☆
2018	80.9	237 of 1446	83.6%	★★★★☆

White

Year	Avg score	Statewide rank	Michigan percentile	Rating
2026	91.1	70 of 1199	94.2%	★★★★★
2025	89.1	89 of 1206	92.6%	★★★★★
2024	80.6	193 of 1204	84.0%	★★★★☆
2023	75.5	253 of 1198	78.9%	★★★★☆
2022	83.9	127 of 1102	88.5%	★★★★☆
2021	66.2	296 of 1005	70.5%	★★★★☆
2019	73.0	258 of 1128	77.1%	★★★★☆
2018	73.3	297 of 1253	76.3%	★★★★☆

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)

Female (2026)98th percentile~ school

Male (2026)94th percentile-3 vs school

White (2026)94th percentile-3 vs school

Low Socio Economic Status (2026)93rd percentile-5 vs school

English Language Learner (2026)86th percentile-12 vs school

Asian (2026)76th percentile-21 vs school

By subject vs Michigan (2025-2026) ?

Math74%+36 vs state

Science74%+34 vs state

English Language Arts70%+29 vs state

Social Studies57%+30 vs state

3.0

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What people are saying

by a parent
Wednesday, March 3, 2021

Mostly positive experience and mostly excellent teachers (one we found lacking the Troy standard we’d come to appreciate). Our main issue was communication from administration very disappointing. For example, I discovered many months after that my child was being ostracized by peers, school knew and didn’t communicate with us so we could help support our child. Close Quote

Schools Near Costello Elementary 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)				M-Step English Language Arts (2026)				M-Step Math (2026)				M-Step Science (2026)	M-Step Social Studies (2026)	Per Pupil Expenditures (2025)
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 (2025)	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	M-Step English Language Arts 3rd Grade	M-Step English Language Arts 4th Grade	M-Step English Language Arts 5th Grade	M-Step English Language Arts 6th Grade	M-Step Math 3rd Grade	M-Step Math 4th Grade	M-Step Math 5th Grade	M-Step Math 6th Grade	M-Step Science 5th Grade	M-Step Social Studies 5th Grade	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Costello Elementary School	Public	PK, KG-5	1333 Hamman Dr	Troy	48085	Oakland County	Troy School District	No	No	No	No	(248) 823-3700	395	24	16.4	10.4%	217 (54.9%)	7 (1.8%)	25 (6.3%)	121 (30.6%)	2 (0.5%)	0 (0.0%)	23 (5.8%)	95.8	42^nd of 1492 public elementary schools	97.2%		94.3	63^rd of 1488 public elementary schools	95.8%	21	64.7	70.6	75.3		75.0	77.6	70.1		74.0	57.1	$15,647	$409	$15,238
Leonard Elementary School	Public	K-5	4401 Tallman Dr	Troy	48085	Oakland County	Troy School District	No	No	No	No	(248) 823-3300	400	25	15.9	8.0%	177 (44.3%)	12 (3.0%)	16 (4.0%)	172 (43.0%)	1 (0.3%)	0 (0.0%)	22 (5.5%)	93.1	85^th of 1492 public elementary schools	94.3%		96.3	35^th of 1488 public elementary schools	97.6%	50	65.0	64.6	76.9		74.1	69.2	66.3		66.3	47.5	$16,968	$394	$16,574
Barnard Elementary School	Public	K-5	3601 Forge Dr	Troy	48083	Oakland County	Troy School District	No	No	No	No	(248) 823-4300	400	25	15.7	17.8%	186 (46.5%)	23 (5.8%)	25 (6.3%)	142 (35.5%)	0 (0.0%)	0 (0.0%)	24 (6.0%)	90.5	125^th of 1492 public elementary schools	91.6%		90.8	108^th of 1488 public elementary schools	92.7%	17	53.9	80.0	69.0		74.0	85.2	54.8		64.4	43.8	$17,343	$644	$16,700
Hill Elementary School	Public	PK, KG-5	4600 Forsyth Dr	Troy	48085	Oakland County	Troy School District	No	No	No	No	(248) 823-3500	363	26	13.9	12.7%	195 (53.7%)	23 (6.3%)	26 (7.2%)	87 (24.0%)	0 (0.0%)	0 (0.0%)	32 (8.8%)	80.6	255^th of 1492 public elementary schools	82.9%		81.9	247^th of 1488 public elementary schools	83.4%	8	71.7	47.8	67.8		79.2	59.7	67.8		57.6	22.0	$18,270	$411	$17,859
Wattles Elementary School	Public	K-5	3555 Ellenboro Dr	Troy	48083	Oakland County	Troy School District	No	No	No	No	(248) 823-3400	406	26	15.5	21.9%	141 (34.7%)	41 (10.1%)	29 (7.1%)	173 (42.6%)	0 (0.0%)	0 (0.0%)	22 (5.4%)	84.5	208^th of 1492 public elementary schools	86.1%		83.5	226^th of 1488 public elementary schools	84.8%	18	59.1	62.5	55.3		76.5	72.3	55.3		48.7	42.1	$18,147	$393	$17,754
Wass Elementary School	Public	PK, KG-5	2340 Willard Dr	Troy	48085	Oakland County	Troy School District	No	No	No	No	(248) 823-3900	413	24	17.1	8.5%	225 (54.5%)	8 (1.9%)	24 (5.8%)	130 (31.5%)	0 (0.0%)	0 (0.0%)	26 (6.3%)	93	86^th of 1492 public elementary schools	94.2%		95.2	49^th of 1488 public elementary schools	96.7%	37	70.5	74.6	66.7		77.0	66.7	64.3		61.4	50.0	$15,185	$389	$14,796
Troy Union Elementary School	Public	PK, KG-5	1340 E Square Lake Rd	Troy	48085	Oakland County	Troy School District	No	No	No	Yes	(248) 823-3100	395	27	14.6	22.8%	188 (47.6%)	33 (8.4%)	25 (6.3%)	125 (31.6%)	2 (0.5%)	0 (0.0%)	22 (5.6%)	72.1	377^th of 1492 public elementary schools	74.7%		73.6	360^th of 1488 public elementary schools	75.8%	17	59.3	62.9	54.4		74.6	56.5	36.8		36.8	30.9	$17,584	$397	$17,187
Martell Elementary School	Public	PK, KG-5	5666 Livernois Rd	Troy	48098	Oakland County	Troy School District	No	No	No	No	(248) 823-3800	348	23	15.2	11.5%	162 (46.6%)	17 (4.9%)	17 (4.9%)	125 (35.9%)	0 (0.0%)	0 (0.0%)	27 (7.8%)	88	163^rd of 1492 public elementary schools	89.1%		88.3	151^st of 1488 public elementary schools	89.9%	12	59.5	67.7	64.2		77.3	66.7	57.4		57.4	37.0	$18,501	$419	$18,082
Schuchard Elementary School	Public	PK, KG-6	2900 Holly Dr	Sterling Heights	48310	Macomb County	Utica Community Schools	No	No	No	Yes	(586) 797-6200	602	35	17.4	86.0%	472 (78.4%)	21 (3.5%)	5 (0.8%)	84 (14.0%)	0 (0.0%)	0 (0.0%)	20 (3.3%)	46	761^st of 1492 public elementary schools	49.0%		44.4	803^rd of 1488 public elementary schools	46.0%	42	29.9	32.6	46.2	29.1	49.5	35.8	32.1	31.4	39.7	25.6	$15,622	$1,195	$14,427
Noor International Academy	Public, Charter	PK, KG-6	37412 Dequindre Rd	Sterling Heights	48310	Macomb County	Noor International Academy	Yes	No	No	Yes	(586) 365-5000	186	11	16.7	59.7%	89 (47.8%)	3 (1.6%)	0 (0.0%)	93 (50.0%)	0 (0.0%)	0 (0.0%)	1 (0.5%)	86.7	176^th of 1492 public elementary schools	88.2%		74.6	344^th of 1488 public elementary schools	76.9%	168	61.3	71.4	1519.6	60.0	61.3	42.9	68.8	60.0	75.0	62.5	$12,808	$1,343	$11,466

Frequently Asked Questions about Costello Elementary School

How many students attend Costello Elementary School?

In the 2024-25 school year, 395 students attended Costello Elementary School.

What schools do graduates of Costello Elementary School attend?

Students who attend Costello Elementary School usually go on to attend:

Middle : Larson Middle School
High : Athens High School

What district is Costello Elementary School in?

Troy School District

Is Costello Elementary School a good school?

Yes! Costello Elementary School is one of the best elementary schools in the state. It ranks 42^nd of 1492 Michigan elementary schools.

What is the racial makeup of Costello Elementary School?

Students at Costello Elementary School are 55% White, 31% Asian, 6% Hispanic, 6% Two or more races, 2% African American.

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Latest Michigan data All new data »

2025–26 M-Step, PSAT & SAT test scoresSep 4, 2026

2024–25 school spending dataJun 13, 2026

2024–25 dropout rates & graduation ratesJun 13, 2026

2024–25 attendance dataJan 6, 2026

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