Triadelphia Ridge Elementary

Summary:

Triadelphia Ridge Elementary is a highly-rated public elementary school in Ellicott City, Maryland, serving students from pre-kindergarten through 5th grade as part of the Howard County Public Schools district, which is ranked 2nd out of 25 districts in the state.

Triadelphia Ridge Elementary consistently ranks in the top 5% of all Maryland elementary schools, with exceptional academic performance. In the 2023-2024 school year, 73.1% of Triadelphia Ridge students were proficient or better in mathematics, compared to 41.1% for the Howard County district and 24.1% for the state. The school's performance is particularly strong in 3rd grade, where 83.5% of students were proficient or better in mathematics and 87.6% were proficient or better in English language arts (ELA). Triadelphia Ridge also excels in science, with 51.5% of 5th-grade students proficient or better, compared to 36.2% for the district and 23.9% for the state.

Despite its strong academic performance, Triadelphia Ridge has a diverse student population, with 40.99% White, 8.43% African American, 4.79% Hispanic, 37.85% Asian, and 7.44% two or more races. The school's performance is particularly strong for its African American and Asian student subgroups, ranking 2nd and 41st, respectively, out of all Maryland elementary schools in those categories. Triadelphia Ridge's academic performance is significantly higher than many of the nearby elementary schools, such as Longfellow Elementary (37.9% mathematics proficiency) and Swansfield Elementary (39% mathematics proficiency), suggesting that it is a standout school within the Howard County district.

Detail:

Public PK, KG-5

13400 Triadelphia Rd
Ellicott City, MD 21042

(410) 313-2560

District: Howard County Public Schools

SchoolDigger Rank:
32^nd of 859 Maryland Elementary Schools

Per Pupil Expenditures: $17,230

Students who attend Triadelphia Ridge Elementary usually attend:

Middle:	Folly Quarter Middle
High:	Glenelg High

Student/teacher ratio: 13.7

Number of students: 605

Racial breakdown:

White:

41.0%

Asian:

37.9%

African American:

8.4%

Free/discounted lunch recipients: 4.8%

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Performance Trends

Compare Details Triadelphia Ridge Elementary ranks better than 96.3% of elementary schools in Maryland. It also ranks 4^th among 42 ranked elementary schools in the Howard County Public Schools District. (See more...)

Compare Details In 2024 the calculated Average Standard Score was 95.54. (See more...)

Chronic absenteeism in a school refers to a situation where students repeatedly miss school, with the threshold often defined as missing 10% or more of school days for any reason, excused or unexcused.

Student Body

Compare Details Racial makeup is: White (41%), Asian (37.9%), African American (8.4%). (See more...)

Compare Details 4.8% of students are receiving a free or discounted lunch. This is the lowest percentage in the Howard County Public Schools District. (See more...)

Teachers

Compare Details The student/teacher ratio at Triadelphia Ridge Elementary is 13.7. 26 elementary schools in the Howard County Public Schools District have better student/teacher ratios. (See more...)

Compare Triadelphia Ridge Elementary employs 43.9 full-time teachers.

Finance

Compare Details The average total spent per student at Triadelphia Ridge Elementary is $17,230. 25 elementary schools in the Howard County Public Schools District spend more per student.

Schooldigger Rankings:

Triadelphia Ridge Elementary was not ranked this year due to insufficient test score data.

Howard County Public Schools:

SchoolDigger ranks Howard County Public Schools 2^nd of 25 Maryland school districts. (See district ranking list.)

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Rank History for Triadelphia Ridge Elementary

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Rank History for all students at Triadelphia Ridge Elementary

Year	Avg Standard Score	Statewide Rank	Total # Ranked Elementary Schools	MD State Percentile
2004	5.36	760^th	803	5.4%
2005	8.36	750^th	805	6.8%
2006	9.00	747^th	804	7.1%
2007	8.16	753^rd	818	7.9%
2008	80.97	118^th	838	85.9%
2009	84.59	62^nd	850	92.7%
2010	85.88	47^th	855	94.5%
2011	86.07	41^st	853	95.2%
2012	83.87	56^th	857	93.5%
2013	86.11	31^st	847	96.3%
2014	85.93	56^th	867	93.5%
2015	95.29	26^th	859	97.0%
2016	95.42	24^th	845	97.2%
2017	93.92	45^th	847	94.7%
2018	94.84	40^th	857	95.3%
2019	93.43	50^th	853	94.1%
2021	96.24	33^rd	802	95.9%
2022	93.60	54^th	862	93.7%
2023	95.57	32^nd	855	96.3%
2024	95.54	32^nd	859	96.3%

See the entire list of Maryland Elementary School Rankings!

Rank History for Special Education students at Triadelphia Ridge Elementary

Year	Avg Standard Score	Statewide Rank	Total # Ranked Elementary Schools	MD State Percentile	SchoolDigger Rating
2021	58.82	40^th	136	70.6%

See the entire list of Best Maryland Elementary Schools for Special Education Students!

Rank History for Female students at Triadelphia Ridge Elementary

Year	Avg Standard Score	Statewide Rank	Total # Ranked Elementary Schools	MD State Percentile	SchoolDigger Rating
2021	96.08	23^rd	796	97.1%

See the entire list of Best Maryland Elementary Schools for Female Students!

Rank History for Male students at Triadelphia Ridge Elementary

Year	Avg Standard Score	Statewide Rank	Total # Ranked Elementary Schools	MD State Percentile	SchoolDigger Rating
2021	93.52	42^nd	788	94.7%

See the entire list of Best Maryland Elementary Schools for Male Students!

Rank History for Asian students at Triadelphia Ridge Elementary

Year	Avg Standard Score	Statewide Rank	Total # Ranked Elementary Schools	MD State Percentile	SchoolDigger Rating
2021	68.86	41^st	128	68.0%

See the entire list of Best Maryland Elementary Schools for Asian Students!

Rank History for African American students at Triadelphia Ridge Elementary

Year	Avg Standard Score	Statewide Rank	Total # Ranked Elementary Schools	MD State Percentile	SchoolDigger Rating
2021	99.76	2^nd	504	99.6%

See the entire list of Best Maryland Elementary Schools for African American Students!

Rank History for White students at Triadelphia Ridge Elementary

Year	Avg Standard Score	Statewide Rank	Total # Ranked Elementary Schools	MD State Percentile	SchoolDigger Rating
2021	83.22	64^th	528	87.9%

See the entire list of Best Maryland Elementary Schools for White Students!

Data source: test scores: Maryland State Department of Education, rankings: SchoolDigger.com

As you review the school rankings data, please be aware that some of the information from certain demographics is missing. The reason for this omission is that the data has been redacted from the source data itself due to low population samples in these specific demographic groups.

Redacting data from low population samples is a necessary step to ensure the reliability and accuracy of the results, as small sample sizes may not be representative of the broader population. Additionally, this measure helps protect the privacy of individuals belonging to these demographic groups.

Data source: Maryland State Department of Education

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Enrollment information for Triadelphia Ridge Elementary

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Year	White	African American	Asian	Hispanic	American Indian	Pacific Islander	Two or More Races	Total
1999	561	23	25	3	3	n/a	n/a	615
2000	588	24	26	2	2	n/a	n/a	642
2001	598	24	31	3	2	n/a	n/a	658
2002	605	30	48	9	2	n/a	n/a	694
2003	605	30	48	9	2	n/a	n/a	694
2004	596	29	57	10	1	n/a	n/a	693
2005	587	32	67	14	1	n/a	n/a	701
2006	559	37	63	12	0	n/a	n/a	671
2007	349	26	49	8	0	n/a	n/a	432
2008	337	34	52	8	0	n/a	n/a	431
2009	347	28	51	5	0	n/a	n/a	431
2010	337	26	58	7	0	n/a	n/a	428
2011	266	26	55	20	2	0	37	406
2012	258	26	66	17	1	0	43	411
2013	262	21	89	23	1	0	46	442
2014	276	18	114	27	3	0	47	485
2015	281	18	143	23	0	0	44	509
2016	274	28	155	21	0	1	49	528
2017	284	30	167	30	0	1	48	560
2018	268	35	165	37	1	2	45	553
2019	265	46	159	40	1	2	50	563
2020	257	42	170	36	3	2	45	555
2021	258	47	163	30	2	2	38	540
2022	248	46	197	30	2	1	38	562
2023	248	51	229	29	2	1	45	605

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Enrollment/Ethnicity

For more information about how the Department of Education defines ethnicity, see Defining Race and Ethnicity Data, National Center for Education Statistics

Students eligible for free or discounted lunch at Triadelphia Ridge Elementary

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Year	# Students	Full-time Teachers	Student/Teacher ratio	% Free/Discounted Lunch
1999	615	38.0	16.2	2.1
2000	642	38.5	16.7	1.4
2001	658	41.0	16.0	0.8
2002	694	41.0	16.9	1.4
2003	694	41.0	16.9	1.4
2004	693	43.6	15.9	2
2005	701	47.0	14.9	2
2006	671	45.0	14.9	1.2
2007	432	33.2	13.0	0.2
2008	431	35.2	12.2	0.9
2009	431	33.8	12.8	2.3
2010	428	30.0	14.2	2.3
2011	406	31.0	13.0	4.2
2012	411	35.8	11.4	4.1
2013	442	33.8	13.0	2.9
2014	485	35.8	13.5	4.3
2015	509	33.0	15.4	4.3
2016	528	34.0	15.5	3.4
2017	560	38.9	14.3	1.6
2018	553	38.0	14.5	2.5
2019	563	40.1	14.0	2.7
2020	555	36.8	15.0	3.2
2021	540	40.9	13.2	2.6
2022	562	40.9	13.7	2.1
2023	605	43.9	13.7	4.8

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Students eligible for discounted/free lunch:

The National School Lunch Program (NSLP) provides low-cost or free meals to students in U.S. public and nonprofit private schools based on household income. Those with incomes below 130% of the poverty line receive free lunch, while those between 130% and 185% qualify for reduced-price lunch. The percentage of students receiving free or reduced-price lunch serves as a marker for poverty, as it reflects the socioeconomic status of families in a given school or district. A higher FRPL rate typically indicates a higher concentration of low-income families, suggesting that the school or district may face additional challenges in providing adequate resources and support for student success.

Student/Teacher Ratio Triadelphia Ridge Elementary

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Year	# Students	Full-time Teachers	Student/Teacher ratio	% Free/Discounted Lunch
1999	615	38.0	16.2	2.1
2000	642	38.5	16.7	1.4
2001	658	41.0	16.0	0.8
2002	694	41.0	16.9	1.4
2003	694	41.0	16.9	1.4
2004	693	43.6	15.9	2
2005	701	47.0	14.9	2
2006	671	45.0	14.9	1.2
2007	432	33.2	13.0	0.2
2008	431	35.2	12.2	0.9
2009	431	33.8	12.8	2.3
2010	428	30.0	14.2	2.3
2011	406	31.0	13.0	4.2
2012	411	35.8	11.4	4.1
2013	442	33.8	13.0	2.9
2014	485	35.8	13.5	4.3
2015	509	33.0	15.4	4.3
2016	528	34.0	15.5	3.4
2017	560	38.9	14.3	1.6
2018	553	38.0	14.5	2.5
2019	563	40.1	14.0	2.7
2020	555	36.8	15.0	3.2
2021	540	40.9	13.2	2.6
2022	562	40.9	13.7	2.1
2023	605	43.9	13.7	4.8

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Student-Teacher Ratio

Student/teacher ratio is calculated by dividing the total number of students by the total number of full-time equivalent teachers. Please note that a smaller student/teacher ratio does not necessarily translate to smaller class size. In some instances, schools hire teachers part time, and some teachers are hired for specialized instruction with very small class sizes. These and other factors contribute to the student/teacher ratio. Note: For private schools, Student/teacher ratio may not include Pre-Kindergarten.

Finances

Per Pupil Expenditures for Triadelphia Ridge Elementary

Year	Expenditures from Federal Funds	Expenditures from State and Local Funds	Total Expenditures Per Pupil (All Funds)
2019	$457 (3.4%)	$12,959 (96.6%)	$13,417
2020	$493 (3.5%)	$13,662 (96.5%)	$14,155
2021	$796 (5.1%)	$14,859 (94.9%)	$15,655
2022	$964 (5.9%)	$15,496 (94.1%)	$16,460
2023	$766 (4.4%)	$16,464 (95.6%)	$17,230

Data source: Maryland Department of Education

Pre and Post Pandemic Data

Impact of COVID-19 on Triadelphia Ridge Elementary

The coronavirus has had a profound impact on education in America. Learning shifted online overnight, attendance numbers dwindled, and enrollment decreased. SchoolDigger.com is making it easier for you to better assess how COVID-19 has impacted your school. Through the collection of pre-pandemic (2019) and current data, SchoolDigger.com is sharing test scores, enrollment numbers and school demographics from schools across the country – and we make it easy to see how impacted schools compare locally and statewide.

Rankings

Rank Pre-pandemic (2018-2019)	Rank Post pandemic (2022-2023)	Change (%)
Ranks 50^th of 853 Elementary schools	Ranks 32^nd of 855 Elementary schools	2.1%

Student Body

	Number of students Pre-pandemic (2018-2019)	Number of students Post pandemic (2022-2023)	Change (%)
Total Students	563	605	7.5%
African American	46	51	10.9%
American Indian	1	2	100%
Asian	159	229	44%
Hispanic	40	29	27.5%
Pacific Islander	2	1	50%
White	265	248	6.4%
Two or More Races	50	45	10%
% Free/Discounted Lunch Recipients	2.7%	4.8%	2.1%

Schools Near Triadelphia Ridge Elementary

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

School													Students/Teachers											Ranking (2024)				Ranking (2023)				MCAP Mathematics (2024)				MCAP English Language Arts (2024)				MCAP Science (2024)	Per Pupil Expenditures (2023)
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 (2024)	Statewide Rank (2024)	State Percentile (2024)	SchoolDigger Rating (2024)	Average Standard Score (2023)	Statewide Rank (2023)	State Percentile (2023)	Rank Change from Previous Year	MCAP Mathematics 3rd Grade	MCAP Mathematics 4th Grade	MCAP Mathematics 5th Grade	MCAP Mathematics All Grades	MCAP English Language Arts 3rd Grade	MCAP English Language Arts 4th Grade	MCAP English Language Arts 5th Grade	MCAP English Language Arts All Grades	MCAP Science 5th Grade	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Triadelphia Ridge Elementary	Public	PK, KG-5	13400 Triadelphia Rd	Ellicott City	21042	Howard County	Howard County Public Schools	No	No	No	No	(410) 313-2560	605	44	13.7	4.8%	248 (41.0%)	51 (8.4%)	29 (4.8%)	229 (37.9%)	2 (0.3%)	1 (0.2%)	45 (7.4%)	95.5	32^nd of 859 public elementary schools	96.3%		95.6	32^nd of 855 public elementary schools	96.3%		83.5	76.7	62.6	73.1	87.6	72.1	80.9	80.1	51.5	$17,230	$766	$16,464
Dayton Oaks Elementary	Public	PK, KG-5	4691 Ten Oaks Rd	Dayton	21036	Howard County	Howard County Public Schools	No	No	No	No	(410) 313-1571	783	58	13.4	7.5%	369 (47.1%)	73 (9.3%)	51 (6.5%)	215 (27.5%)	1 (0.1%)	0 (0.0%)	73 (9.3%)	93.3	54^th of 859 public elementary schools	93.7%		92.8	60^th of 855 public elementary schools	93.0%	6	76.1	60.9	63.0	66.9	79.9	75.0	69.7	75.1	50.4	$17,441	$696	$16,745
West Friendship Elementary	Public	K-5	12500 Frederick Road	West Friendship	21794	Howard County	Howard County Public Schools	No	No	No	No	(410) 313-5512	366	27	13.4	9.3%	220 (60.1%)	21 (5.7%)	21 (5.7%)	74 (20.2%)	0 (0.0%)	1 (0.3%)	29 (7.9%)	96.1	27^th of 859 public elementary schools	96.9%		95.6	31^st of 855 public elementary schools	96.4%	4	77.5	66.1	65.2	69.8	73.2	85.2	88.2	82.0	63.8	$18,823	$769	$18,054
Bushy Park Elementary	Public	PK, KG-5	14601 Carrs Mill Rd	Glenwood	21738	Howard County	Howard County Public Schools	No	No	No	No	(410) 313-5500	621	46	13.4	7.9%	421 (67.8%)	39 (6.3%)	45 (7.2%)	81 (13.0%)	0 (0.0%)	0 (0.0%)	35 (5.6%)	94.1	46^th of 859 public elementary schools	94.6%		95.9	29^th of 855 public elementary schools	96.6%	17	72.2	74.0	70.4	72.2	79.4	90.0	63.3	77.6	48.0	$17,841	$782	$17,058
Manor Woods Elementary	Public	K-5	11575 Frederick Rd	Ellicott City	21042	Howard County	Howard County Public Schools	No	No	No	No	(410) 313-7165	662	49	13.4	11.9%	243 (36.7%)	43 (6.5%)	42 (6.3%)	281 (42.4%)	1 (0.2%)	2 (0.3%)	50 (7.6%)	95.1	37^th of 859 public elementary schools	95.7%		95.2	35^th of 855 public elementary schools	95.9%	2	79.4	68.8	69.0	72.2	79.2	78.6	72.4	76.5	51.0	$16,634	$695	$15,939
Clarksville Elementary	Public	K-5	12041 Clarksville Pike	Clarksville	21029	Howard County	Howard County Public Schools	No	No	No	No	(410) 313-7050	581	42	13.9	18.8%	155 (26.7%)	122 (21.0%)	54 (9.3%)	222 (38.2%)	0 (0.0%)	0 (0.0%)	28 (4.8%)	94	47^th of 859 public elementary schools	94.5%		91.9	63^rd of 855 public elementary schools	92.6%	16	80.5	71.6	59.8	70.1	79.0	72.7	71.6	74.2	52.6	$17,129	$1,190	$15,939
Longfellow Elementary	Public	PK, KG-5	5470 Hesperus Dr	Columbia	21044	Howard County	Howard County Public Schools	No	No	No	Yes	(410) 313-6879	478	38	12.5	46.9%	104 (21.8%)	165 (34.5%)	129 (27.0%)	37 (7.7%)	0 (0.0%)	0 (0.0%)	43 (9.0%)	51.9	363^rd of 859 public elementary schools	57.7%		40.4	456^th of 855 public elementary schools	46.7%	93	43.1	28.2	42.3	37.9	54.3	42.3	40.0	45.5	21.4	$19,579	$1,585	$17,994
Swansfield Elementary	Public	PK, KG-5	5610 Cedar Ln	Columbia	21044	Howard County	Howard County Public Schools	No	No	No	Yes	(410) 313-6907	592	47	12.4	41.0%	174 (29.4%)	249 (42.1%)	58 (9.8%)	52 (8.8%)	0 (0.0%)	2 (0.3%)	57 (9.6%)	53	353^rd of 859 public elementary schools	58.9%		51	364^th of 855 public elementary schools	57.4%	11	50.5	34.9	31.6	39.0	48.4	45.8	50.0	48.1	16.1	$17,965	$1,396	$16,568
Pointers Run Elementary	Public	PK, KG-5	6600 South Trotter Rd	Clarksville	21029	Howard County	Howard County Public Schools	No	No	No	No	(410) 313-7142	812	55	14.8	7.4%	309 (38.1%)	108 (13.3%)	44 (5.4%)	277 (34.1%)	1 (0.1%)	2 (0.2%)	71 (8.7%)	94.8	39^th of 859 public elementary schools	95.5%		93.9	49^th of 855 public elementary schools	94.3%	10	84.2	72.9	64.3	73.7	84.9	73.6	69.3	76.0	52.1	$16,571	$753	$15,819
Centennial Lane Elementary	Public	PK, KG-5	3825 Centennial Ln	Ellicott City	21042	Howard County	Howard County Public Schools	No	No	No	No	(410) 313-2800	698	50	14.0	12.8%	228 (32.7%)	53 (7.6%)	37 (5.3%)	317 (45.4%)	5 (0.7%)	1 (0.1%)	57 (8.2%)	93.6	50^th of 859 public elementary schools	94.2%		93.3	54^th of 855 public elementary schools	93.7%	4	70.1	62.3	69.4	67.4	77.4	70.8	79.0	75.8	52.9	$15,271	$691	$14,581

Frequently Asked Questions about Triadelphia Ridge Elementary

Is Triadelphia Ridge Elementary a good school?

Yes! Triadelphia Ridge Elementary is one of the best elementary schools in the state. It ranks 32^nd of 859 Maryland elementary schools.

How many students attend Triadelphia Ridge Elementary?

In the 2022-23 school year, 605 students attended Triadelphia Ridge Elementary.

What is the racial makeup of Triadelphia Ridge Elementary?

Students at Triadelphia Ridge Elementary are 41% White, 38% Asian, 8% African American, 7% Two or more races, 5% Hispanic.

What district is Triadelphia Ridge Elementary in?

Howard County Public Schools

What schools do graduates of Triadelphia Ridge Elementary attend?

Students who attend Triadelphia Ridge Elementary usually go on to attend:

Middle : Folly Quarter Middle
High : Glenelg High

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