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Mattson Middle School

Q: Is Mattson Middle School a good school?

Mattson Middle School ranks 242 nd of 514 Washington middle schools. SchoolDigger rates this school 3 stars out of 5.

Public Grades 6-8

242^nd

SchoolDigger Rank ?

of 514 Washington Middle Schools

Better than 53% of Washington middle schools

Summary

Mattson Middle School is a public school serving 719 students in grades 6–8 in Covington, Washington, within the Kent School District and near schools in the Tahoma and Auburn districts. Mattson ranks 242nd out of 514 Washington middle schools, placing it in the 53rd percentile with a three-star rating. That is somewhat above the statewide midpoint and stronger than the district’s overall 41st-percentile standing. The school’s ranking has improved from the 49th percentile in 2023–2024, although it remains below its 60th- and 61st-percentile results earlier in the decade.

Among nearby Kent schools, Mattson is approximately the third-highest ranked, behind Northwood Middle School and Meridian Middle School. In 2025–2026, Mattson exceeded the Kent district average in English Language Arts, math, and science. Its proficiency rates were 46.75% in ELA, 36.39% in math, and 48.25% in science. Science is the clearest recent success: it rose 11.64 points in one year and is only 2.70 points below the statewide rate. Math has been relatively steady near the mid-30% range, while ELA declined from 50.68% to 46.75%. Eighth-grade ELA and science are particular bright spots, while sixth-grade math is the weakest grade-level result.

Mattson compares favorably with nearby Rainier Middle School and Cascade Middle School, but it trails the nearby Summit Trail Middle School and Maple View Middle School in the Tahoma School District by a wide margin. Staffing is a relative strength: Mattson’s 18.4 students per teacher is lower than the nearby Kent comparisons. The most urgent concern is special education effectiveness, which ranked at the 5th percentile in the latest available results. Overall, Mattson is a solid middle-performing school with strong science momentum, but continued attention to math, ELA, and special education support would be important.

719

Students ?

18.4

Student/teacher ratio ?

$19,325

Per pupil spending ?

46%

Free/discounted lunch ?

16400 SE 251st ST
Covington, WA 98042-5217

(253) 373-7670

District: Kent School District

Students who attend Mattson Middle School usually attend:

High:

Kentwood High School

Feeder schools for Mattson Middle School:

Elementary:	Crestwood Elementary School
	Lake Youngs Elementary School
	Meridian Elementary School
	Pine Tree Elementary School

Racial breakdown:

White:

37.3%

Hispanic:

22.9%

Asian:

19.1%

See top rated Washington middle schools

Compare Mattson Middle School to nearby middle schools!

At a glance

▼ Ranking trend: Declining — 66th percentile in 2016 → 53rd in 2026

Strengths

✓Above the Washington median (53rd percentile)

Worth a look

!Test scores below the Washington average (43% vs 48% meeting standards)

!Ranking has slipped — down 13 percentile points since 2016

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

Students meeting standards (2025-2026) ?

This school43%

District avg39%

Washington avg48%

242^nd of 514

Washington public middle schools ?

Top 47%▼ down 13 pts since 2016

From top 34% (2016) to top 47% (2026)

See the entire ranking list of Washington Middle Schools →

★★★★★

SchoolDigger rating ?

3^rd of 7Middle Schools in the Kent School District

141^st of 238Kent School District among Washington 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	Washington percentile	Rating
2026	48.4	242 of 514	52.9%	★★★☆☆
2025	46.1	267 of 534	50.0%	★★★☆☆
2024	45.3	274 of 535	48.8%	★★☆☆☆
2023	46.7	255 of 539	52.7%	★★★☆☆
2022	53.1	214 of 541	60.4%	★★★☆☆
2021	55.5	207 of 529	60.9%	★★★☆☆
2019	51.4	248 of 512	51.6%	★★★☆☆
2018	51.3	205 of 437	53.1%	★★★☆☆
2017	63.0	154 of 435	64.6%	★★★☆☆
2016	64.6	150 of 443	66.1%	★★★☆☆
2015	55.5	188 of 445	57.8%	★★★☆☆
2013	68.5	141 of 498	71.7%	★★★★☆
2012	68.0	137 of 497	72.4%	★★★★☆
2011	57.7	199 of 492	59.6%	★★★☆☆
2010	57.3	202 of 483	58.2%	★★★☆☆
2009	54.2	210 of 476	55.9%	★★★☆☆
2008	54.9	201 of 466	56.9%	★★★☆☆
2007	54.7	197 of 463	57.5%	★★★☆☆
2006	48.9	224 of 449	50.1%	★★★☆☆
2005	54.2	199 of 425	53.2%	★★★☆☆
2004	64.1	149 of 421	64.6%	★★★☆☆

African American

Year	Avg score	Statewide rank	Washington percentile	Rating
2026	56.4	38 of 100	62.0%	★★★☆☆
2025	60.1	36 of 101	64.4%	★★★☆☆
2023	50.9	43 of 96	55.2%	★★★☆☆
2022	50.5	40 of 104	61.5%	★★★☆☆
2021	72.1	14 of 106	86.8%	★★★★☆
2019	60.3	30 of 111	73.0%	★★★★☆

Asian

Year	Avg score	Statewide rank	Washington percentile	Rating
2026	32.4	81 of 114	28.9%	★★☆☆☆
2025	31.5	105 of 147	28.6%	★★☆☆☆
2024	35.7	92 of 148	37.8%	★★☆☆☆
2023	27.9	103 of 145	29.0%	★★☆☆☆
2022	28.1	117 of 161	27.3%	★☆☆☆☆
2021	34.5	94 of 149	36.9%	★★☆☆☆
2019	31.2	116 of 152	23.7%	★☆☆☆☆
2018	31.2	92 of 123	25.2%	★☆☆☆☆

English Language Learner

Year	Avg score	Statewide rank	Washington percentile	Rating
2025	30.0	56 of 96	41.7%	★★☆☆☆
2024	38.1	40 of 78	48.7%	★★★☆☆
2023	35.2	24 of 57	57.9%	★★★☆☆
2018	50.8	42 of 135	68.9%	★★★★☆

Female

Year	Avg score	Statewide rank	Washington percentile	Rating
2026	53.5	194 of 443	56.2%	★★★☆☆
2025	46.3	238 of 471	49.5%	★★☆☆☆
2024	44.6	245 of 464	47.2%	★★☆☆☆
2023	52.7	206 of 464	55.6%	★★★☆☆
2022	53.6	193 of 479	59.7%	★★★☆☆
2021	62.1	148 of 469	68.4%	★★★☆☆
2019	38.9	283 of 452	37.4%	★★☆☆☆
2018	49.1	186 of 376	50.5%	★★★☆☆

Hispanic

Year	Avg score	Statewide rank	Washington percentile	Rating
2026	31.5	242 of 347	30.3%	★★☆☆☆
2025	33.8	225 of 347	35.2%	★★☆☆☆
2024	39.1	190 of 344	44.8%	★★☆☆☆
2023	47.6	151 of 336	55.1%	★★★☆☆
2022	47.9	165 of 360	54.2%	★★★☆☆
2021	53.3	132 of 353	62.6%	★★★☆☆
2019	43.4	190 of 344	44.8%	★★☆☆☆
2018	52.0	112 of 259	56.8%	★★★☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Washington percentile	Rating
2026	33.9	305 of 453	32.7%	★★☆☆☆
2025	31.5	326 of 457	28.7%	★☆☆☆☆
2024	36.8	287 of 455	36.9%	★★☆☆☆
2023	53.7	188 of 463	59.4%	★★★☆☆
2022	54.3	168 of 475	64.6%	★★★☆☆
2021	67.0	91 of 458	80.1%	★★★★☆
2019	52.4	198 of 448	55.8%	★★★☆☆
2018	53.3	140 of 349	59.9%	★★★☆☆

Male

Year	Avg score	Statewide rank	Washington percentile	Rating
2026	40.9	260 of 454	42.7%	★★☆☆☆
2025	43.7	258 of 472	45.3%	★★☆☆☆
2024	44.0	247 of 466	47.0%	★★☆☆☆
2023	39.9	272 of 470	42.1%	★★☆☆☆
2022	51.7	198 of 480	58.8%	★★★☆☆
2021	48.8	219 of 476	54.0%	★★★☆☆
2019	61.1	152 of 453	66.4%	★★★☆☆
2018	48.8	176 of 371	52.6%	★★★☆☆

Multi-racial

Year	Avg score	Statewide rank	Washington percentile	Rating
2026	53.6	97 of 222	56.3%	★★★☆☆
2025	47.3	121 of 246	50.8%	★★★☆☆
2024	28.9	180 of 243	25.9%	★☆☆☆☆
2023	38.0	154 of 244	36.9%	★★☆☆☆
2022	48.6	125 of 257	51.4%	★★★☆☆
2021	53.6	104 of 250	58.4%	★★★☆☆
2019	47.2	133 of 246	45.9%	★★☆☆☆
2018	37.8	110 of 166	33.7%	★★☆☆☆

Special Education

Year	Avg score	Statewide rank	Washington percentile	Rating
2025	15.4	177 of 186	4.8%	☆☆☆☆☆
2022	21.8	174 of 199	12.6%	★☆☆☆☆
2018	21.2	242 of 268	9.7%	★☆☆☆☆

White

Year	Avg score	Statewide rank	Washington percentile	Rating
2026	49.1	224 of 453	50.6%	★★★☆☆
2025	43.6	266 of 488	45.5%	★★☆☆☆
2024	43.6	278 of 486	42.8%	★★☆☆☆
2023	52.4	212 of 488	56.6%	★★★☆☆
2022	62.8	156 of 488	68.0%	★★★☆☆
2021	57.2	190 of 480	60.4%	★★★☆☆
2019	54.5	206 of 470	56.2%	★★★☆☆
2018	46.4	165 of 325	49.2%	★★★☆☆

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)

African American (2026)62nd percentile+9 vs school

Multi-racial (2026)56th percentile+3 vs school

Female (2026)56th percentile+3 vs school

White (2026)51st percentile~ school

Male (2026)43rd percentile-10 vs school

English Language Learner (2025)42nd percentile-8 vs school

Low Socio Economic Status (2026)33rd percentile-20 vs school

Hispanic (2026)30th percentile-23 vs school

Asian (2026)29th percentile-24 vs school

Special Education (2025)5th percentile-45 vs school

By subject vs Washington (2025-2026) ?

Science48%-3 vs state

English Language Arts47%-6 vs state

Math36%-7 vs state

★

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Schools Near Mattson Middle 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)				WCAS Science (2026)		SBAC English Language Arts (2026)				SBAC Math (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	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	WCAS Science 8th Grade	WCAS Science All Grades	SBAC English Language Arts 6th Grade	SBAC English Language Arts 7th Grade	SBAC English Language Arts 8th Grade	SBAC English Language Arts All Grades	SBAC Math 6th Grade	SBAC Math 7th Grade	SBAC Math 8th Grade	SBAC Math All Grades	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Mattson Middle School	Public	6-8	16400 SE 251st ST	Covington	98042	King County	Kent School District	No	No	No	No	(253) 373-7670	719	39	18.4	46.0%	268 (37.3%)	46 (6.4%)	165 (22.9%)	137 (19.1%)	9 (1.3%)	11 (1.5%)	81 (11.3%)	48.4	242^nd of 514 public middle schools	52.9%		46.1	267^th of 534 public middle schools	50.0%	25	48.3	48.3	45.0	45.4	50.2	46.8	32.4	39.1	38.2	36.4	$19,325	$679	$18,646
Maple View Middle School	Public	6-8	18200 SE 240th ST	Covington	98042	King County	Tahoma School District	No	No	No	No	(425) 413-5500	1,046	49	21.1	23.6%	624 (59.7%)	35 (3.3%)	117 (11.2%)	145 (13.9%)	7 (0.7%)	7 (0.7%)	110 (10.5%)	88.8	51^st of 514 public middle schools	90.1%		86.9	61^st of 534 public middle schools	88.6%	10	68.0	68.0	64.8	70.7	71.9	69.1	50.6	64.8	61.4	59.0	$17,075	$265	$16,811
Cedar Heights Middle School	Public	6-8	19640 SE 272nd Street	Covington	98042	King County	Kent School District	No	No	No	No	(253) 373-7620	876	43	20.2	50.6%	379 (43.3%)	103 (11.8%)	168 (19.2%)	110 (12.6%)	8 (0.9%)	18 (2.1%)	90 (10.3%)	32.1	342^nd of 514 public middle schools	33.5%		33.6	350^th of 534 public middle schools	34.5%	8	39.4	39.4	37.3	49.8	39.9	42.4	30.4	29.0	20.0	26.5	$18,268	$650	$17,619
Meridian Middle School	Public	6-8	23480 120th Ave SE	Kent	98031	King County	Kent School District	No	No	No	No	(253) 373-7383	647	32	20.0	55.6%	121 (18.7%)	110 (17.0%)	145 (22.4%)	199 (30.8%)	0 (0.0%)	17 (2.6%)	54 (8.3%)	54.3	211^th of 514 public middle schools	58.9%		59.2	195^th of 534 public middle schools	63.5%	16	48.3	48.3	42.4	62.4	52.4	52.5	32.3	43.4	36.1	37.3	$19,721	$1,079	$18,642
Canyon Ridge Middle School	Public	6-8	11000 SE 264th St	Kent	98030	King County	Kent School District	No	(n/a)	No	(n/a)	(253) 373-7542	821	40	20.3	73.0%	207 (25.2%)	112 (13.6%)	190 (23.1%)	185 (22.5%)	4 (0.5%)	38 (4.6%)	84 (10.2%)	10.8	473^rd of 514 public middle schools	8.0%		12.8	479^th of 534 public middle schools	10.3%	6	23.1	23.1	22.0	31.3	20.5	24.7	13.7	20.8	20.4	18.1	$20,347	$1,072	$19,275
Northwood Middle School	Public	6-8	17007 SE 184th ST	Renton	98058	King County	Kent School District	No	No	No	No	(253) 373-7780	911	44	20.6	34.7%	313 (34.4%)	95 (10.4%)	148 (16.2%)	230 (25.2%)	6 (0.7%)	12 (1.3%)	105 (11.5%)	62.1	169^th of 514 public middle schools	67.1%		61.4	182^nd of 534 public middle schools	65.9%	13	52.0	52.0	50.0	50.3	58.1	53.1	41.4	41.0	48.3	43.7	$18,568	$623	$17,945
Meeker Middle School	Public	6-8	12600 SE 192nd St	Renton	98058	King County	Kent School District	No	No	No	No	(253) 373-7284	779	35	22.1	58.8%	135 (17.3%)	104 (13.4%)	165 (21.2%)	264 (33.9%)	1 (0.1%)	34 (4.4%)	75 (9.6%)	26.3	377^th of 514 public middle schools	26.7%		34.7	342^nd of 534 public middle schools	36.0%	35	36.3	36.3	30.2	38.0	43.8	37.2	23.3	23.1	30.6	25.6	$18,941	$1,076	$17,864
Rainier Middle School	Public	6-8	30620 116th Ave SE	Auburn	98092	King County	Auburn School District	No	No	No	Yes	(253) 931-4843	907	52	17.4	60.6%	277 (30.5%)	94 (10.4%)	200 (22.1%)	223 (24.6%)	2 (0.2%)	28 (3.1%)	83 (9.2%)	24	393^rd of 514 public middle schools	23.5%		23.7	422^nd of 534 public middle schools	21.0%	29	31.2	31.2	35.9	36.8	37.9	36.9	25.4	26.0	25.1	25.5	$17,157	$640	$16,517
Mill Creek Middle School	Public	6-8	620 Central Ave N	Kent	98032	King County	Kent School District	No	No	No	Yes	(253) 373-7446	866	46	18.9	73.0%	85 (9.8%)	144 (16.6%)	369 (42.6%)	154 (17.8%)	3 (0.3%)	77 (8.9%)	33 (3.8%)	5.2	506^th of 514 public middle schools	1.6%		3.9	532^nd of 534 public middle schools	0.4%	26	18.0	18.0	19.4	20.0	17.8	19.1	11.7	11.2	9.9	11.0	$18,728	$1,086	$17,642
Cascade Middle School	Public	6-8	1015 24th St NE	Auburn	98002	King County	Auburn School District	No	No	No	Yes	(253) 931-4995	966	53	18.1	65.2%	294 (30.4%)	105 (10.9%)	286 (29.6%)	117 (12.1%)	6 (0.6%)	77 (8.0%)	80 (8.3%)	22.2	404^th of 514 public middle schools	21.4%		18.3	448^th of 534 public middle schools	16.1%	44	28.7	28.7	38.6	42.5	36.5	39.3	23.3	20.5	18.5	20.9	$16,918	$693	$16,225

Frequently Asked Questions about Mattson Middle School

What high school do graduates of Mattson Middle School attend?

Students who attend Mattson Middle School usually go on to attend Kentwood High School

What is the racial makeup of Mattson Middle School?

Students at Mattson Middle School are 37% White, 23% Hispanic, 19% Asian, 11% Two or more races, 6% African American, 2% Pacific Islander, 1% American Indian.

How many students attend Mattson Middle School?

In the 2024-25 school year, 719 students attended Mattson Middle School.

Is Mattson Middle School a good school?

Mattson Middle School ranks 242^nd of 514 Washington middle schools. SchoolDigger rates this school 3 stars out of 5.

What district is Mattson Middle School in?

Kent School District

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Latest Washington data All new data »

2025–26 SBAC & WCAS test scoresSep 10, 2026

2024–25 dropout rates & graduation ratesJan 8, 2026

2022–23 through 2023–24 school spending dataJan 6, 2026

2024–25 SBAC & WCAS test scoresSep 10, 2025

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau, the Washington State Department of Health and the Washington Office of Superindentent of Public Instruction.

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.