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Century Middle School

Q: Is Century Middle School a good school?

Century Middle School ranks 316 th of 476 Colorado middle schools. SchoolDigger rates this school 2 stars out of 5.

Q: How many students attend Century Middle School?

In the 2024-25 school year, 717 students attended Century Middle School.

Q: What is the racial makeup of Century Middle School?

Students at Century Middle School are 43% White, 43% Hispanic, 6% Asian, 6% Two or more races, 1% African American.

Q: What high school do graduates of Century Middle School attend?

Students who attend Century Middle School usually go on to attend Mountain Range High School

Public Grades 6-8

316^th

SchoolDigger Rank ?

of 476 Colorado Middle Schools

Better than 34% of Colorado middle schools

Summary

Century Middle School in Thornton, CO, serves 717 students in grades 6–8 as part of the Adams 12 Five Star Schools district. The school currently ranks 313th out of 469 Colorado middle schools, placing it at the 33rd percentile with a 2-star rating. This marks a continued decline from the mid-2010s, when Century ranked in the 56th–60th percentile and earned 3 stars. About half of the student body (49.5%) qualifies for free or reduced lunch, putting it between nearby schools with lower and higher poverty rates.

Century's proficiency rates trail district and state averages by double digits in every subject. In 2025–2026, 31.7% of students were proficient in ELA, 22.7% in math, and just 19.8% in 8th-grade science — compared to state averages of 44.7%, 37.3%, and 35.4%, respectively. The 8th-grade year is a particular concern: 8th-grade ELA proficiency falls to 21.0%, more than 20 points below the state average, even though 7th-grade ELA is nearly at the district level. Math has remained stuck in the low 20s for several years, and science scores dropped sharply from 38.6% proficient in 2023–2024 to 19.8% in 2025–2026. Even gifted and talented students are performing at the 8th percentile compared to gifted peers statewide, suggesting advanced learners may not be adequately challenged.

Compared with nearby schools, Century sits in the middle of a very divided neighborhood. Higher-performing schools like Westlake Middle School (78th percentile) and Rocky Top Middle School (73rd percentile) have ELA proficiency rates of 53–60%, while lower-performing schools like Thornton Middle School and Northglenn Middle School score well below 20%. Century's chronic absenteeism rate of 32.2% matches the district average and is far better than Thornton Middle School's 62.3%, but it remains above the 23–24% rates at Westlake and Rocky Top. For parents, the big picture is a school that has been gradually declining for a decade and now faces urgent challenges in 8th grade, math, and science, while still outperforming the most struggling schools in the area.

717

Students ?

18.5

Student/teacher ratio ?

$16,969

Per pupil spending ?

49.5%

Free/discounted lunch ?

13000 Lafayette Street
Thornton, CO 80241-1804

(720) 972-5240

District: Adams 12 Five Star Schools

Students who attend Century Middle School usually attend:

High:

Mountain Range High School

Feeder schools for Century Middle School:

Elementary:	Hunters Glen Elementary School
	Leroy Elementary
	Stellar Elementary School
	Tarver Elementary School
	More...
	Woodglen Elementary School

Racial breakdown:

White:

43.1%

Hispanic:

42.8%

Asian:

6.0%

See top rated Colorado middle schools

Compare Century Middle School to nearby middle schools!

At a glance

▼ Ranking trend: Declining — 56th percentile in 2016 → 34th in 2026

Worth a look

!Test scores below the Colorado average (26% vs 41% meeting standards)

!Ranking has slipped — down 22 percentile points since 2016

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

Students meeting standards (2025-2026) ?

This school26%

District avg38%

Colorado avg41%

316^th of 476

Colorado public middle schools ?

Bottom 34%▼ down 22 pts since 2016

From top 44% (2016) to bottom 34% (2026)

See the entire ranking list of Colorado Middle Schools →

★★★★★

SchoolDigger rating ?

3^rd of 7Middle Schools in the Adams 12 Five Star Schools

49^th of 114Adams 12 Five Star Schools among Colorado 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	Colorado percentile	Rating
2026	28.1	316 of 476	33.6%	★★☆☆☆
2025	34.5	279 of 469	40.5%	★★☆☆☆
2024	34.1	287 of 485	40.8%	★★☆☆☆
2023	34.1	292 of 480	39.2%	★★☆☆☆
2022	32.0	286 of 448	36.2%	★★☆☆☆
2021	30.7	256 of 369	30.6%	★★☆☆☆
2019	46.6	234 of 458	48.9%	★★☆☆☆
2018	44.9	212 of 418	49.3%	★★☆☆☆
2017	53.5	168 of 424	60.4%	★★★☆☆
2016	51.4	176 of 400	56.0%	★★★☆☆
2015	52.0	179 of 436	58.9%	★★★☆☆
2014	57.8	181 of 461	60.7%	★★★☆☆
2013	62.0	172 of 454	62.1%	★★★☆☆
2012	57.1	192 of 425	54.8%	★★★☆☆
2011	61.6	163 of 422	61.4%	★★★☆☆
2010	63.7	143 of 409	65.0%	★★★☆☆
2009	58.8	161 of 377	57.3%	★★★☆☆
2008	59.0	148 of 362	59.1%	★★★☆☆
2007	63.9	126 of 360	65.0%	★★★☆☆
2006	56.3	149 of 346	56.9%	★★★☆☆
2005	56.9	155 of 340	54.4%	★★★☆☆
2004	45.6	187 of 336	44.3%	★★☆☆☆

Asian

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	1.3	27 of 27	0.0%	☆☆☆☆☆

Female

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	24.9	269 of 368	26.9%	★☆☆☆☆
2025	30.7	230 of 347	33.7%	★★☆☆☆
2024	30.8	225 of 350	35.7%	★★☆☆☆
2023	31.8	222 of 363	38.8%	★★☆☆☆
2022	27.9	227 of 326	30.4%	★★☆☆☆
2021	24.1	200 of 254	21.3%	★☆☆☆☆
2019	44.2	184 of 352	47.7%	★★☆☆☆
2018	43.4	167 of 315	47.0%	★★☆☆☆

Gifted and Talented

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	18.0	141 of 154	8.4%	☆☆☆☆☆
2025	22.4	116 of 132	12.1%	★☆☆☆☆
2024	27.2	106 of 126	15.9%	★☆☆☆☆
2023	18.1	112 of 125	10.4%	★☆☆☆☆
2022	29.8	80 of 93	14.0%	★☆☆☆☆
2019	52.1	78 of 134	41.8%	★★☆☆☆
2018	37.9	93 of 121	23.1%	★☆☆☆☆

Hispanic

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	27.9	149 of 208	28.4%	★☆☆☆☆
2025	30.5	156 of 218	28.4%	★☆☆☆☆
2024	39.6	108 of 199	45.7%	★★☆☆☆
2023	38.8	114 of 198	42.4%	★★☆☆☆
2022	35.2	106 of 169	37.3%	★★☆☆☆
2021	38.4	51 of 83	38.6%	★★☆☆☆
2019	39.7	125 of 220	43.2%	★★☆☆☆
2018	42.8	88 of 165	46.7%	★★☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	23.0	190 of 231	17.7%	★☆☆☆☆
2025	38.2	142 of 241	41.1%	★★☆☆☆
2024	39.3	143 of 244	41.4%	★★☆☆☆
2023	38.8	138 of 241	42.7%	★★☆☆☆
2022	32.5	127 of 197	35.5%	★★☆☆☆
2021	26.5	94 of 114	17.5%	★☆☆☆☆
2019	39.8	138 of 240	42.5%	★★☆☆☆
2018	37.2	133 of 222	40.1%	★★☆☆☆

Male

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	22.7	281 of 372	24.5%	★☆☆☆☆
2025	29.0	246 of 352	30.1%	★★☆☆☆
2024	29.0	241 of 357	32.5%	★★☆☆☆
2023	28.2	233 of 356	34.6%	★★☆☆☆
2022	27.0	221 of 328	32.6%	★★☆☆☆
2021	27.4	185 of 249	25.7%	★☆☆☆☆
2019	42.2	186 of 343	45.8%	★★☆☆☆
2018	35.7	188 of 317	40.7%	★★☆☆☆

White

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	20.7	226 of 278	18.7%	★☆☆☆☆
2025	24.3	215 of 275	21.8%	★☆☆☆☆
2024	19.7	220 of 273	19.4%	★☆☆☆☆
2023	19.3	234 of 286	18.2%	★☆☆☆☆
2022	19.0	219 of 265	17.4%	★☆☆☆☆
2021	16.3	183 of 203	9.9%	★☆☆☆☆
2019	35.1	186 of 283	34.3%	★★☆☆☆
2018	29.5	138 of 199	30.7%	★★☆☆☆

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)

Hispanic (2026)28th percentile-5 vs school

Female (2026)27th percentile-7 vs school

Male (2026)24th percentile-9 vs school

White (2026)19th percentile-15 vs school

Low Socio Economic Status (2026)18th percentile-16 vs school

Gifted and Talented (2026)8th percentile-25 vs school

Asian (2026)<1st percentile-34 vs school

By subject vs Colorado (2025-2026) ?

English Language Arts32%-13 vs state

Math23%-15 vs state

Science20%-16 vs state

3.0

2 ratings

5★1

4★0

3★0

2★0

1★1

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Schools Near Century 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)				CMAS English Language Arts (2026)				CMAS Math (2026)				CMAS Science (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	CMAS English Language Arts 6th Grade	CMAS English Language Arts 7th Grade	CMAS English Language Arts 8th Grade	CMAS English Language Arts All Grades	CMAS Math 6th Grade	CMAS Math 7th Grade	CMAS Math 8th Grade	CMAS Math All Grades	CMAS Science 8th Grade	Total
Century Middle School	Public	6-8	13000 Lafayette Street	Thornton	80241	Adams County	Adams 12 Five Star Schools	No	No	No	No	(720) 972-5240	717	39	18.5	49.5%	309 (43.1%)	10 (1.4%)	307 (42.8%)	43 (6.0%)	6 (0.8%)	0 (0.0%)	41 (5.7%)	28.1	316^th of 476 public middle schools	33.6%		34.5	279^th of 469 public middle schools	40.5%	37	32.7	41.7	21.0	31.7	25.2	25.0	17.6	22.7	19.8	$16,969
Rocky Top Middle School	Public	6-8	14150 York Street	Thornton	80602	Adams County	Adams 12 Five Star Schools	No	No	No	No	(720) 972-2200	1,052	57	18.4	27.6%	584 (55.5%)	17 (1.6%)	293 (27.9%)	81 (7.7%)	1 (0.1%)	3 (0.3%)	72 (6.8%)	69.9	127^th of 476 public middle schools	73.3%		75.5	100^th of 469 public middle schools	78.7%	27	58.1	59.4	41.8	53.4	47.5	45.8	45.6	46.3	44.4	$15,203
Silver Hills Middle School	Public	6-8	12400 Huron Street	Northglenn	80234	Adams County	Adams 12 Five Star Schools	No	No	No	No	(720) 972-5000	965	54	17.9	68.8%	224 (23.2%)	20 (2.1%)	636 (65.9%)	42 (4.4%)	0 (0.0%)	1 (0.1%)	42 (4.4%)	22.9	345^th of 476 public middle schools	27.5%		20.1	365^th of 469 public middle schools	22.2%	20	27.9	34.1	22.6	28.3	12.0	20.2	23.5	18.9	21.8	$15,977
Shadow Ridge Middle School	Public	6-8	12551 Holly Street	Thornton	80602	Adams County	Adams 12 Five Star Schools	No	No	No	No	(720) 972-5040	632	39	16.3	57.4%	218 (34.5%)	11 (1.7%)	353 (55.9%)	21 (3.3%)	1 (0.2%)	0 (0.0%)	28 (4.4%)	11.5	443^rd of 476 public middle schools	6.9%		12.9	424^th of 469 public middle schools	9.6%	19	9.9	20.2	20.2	17.0	6.7	10.4	15.5	10.9	14.8	$16,872
Northglenn Middle School	Public	6-8	1123 Muriel Drive	Northglenn	80233	Adams County	Adams 12 Five Star Schools	No	No	No	Yes	(720) 972-5080	672	43	15.6	85.3%	128 (19.0%)	7 (1.0%)	469 (69.8%)	45 (6.7%)	6 (0.9%)	2 (0.3%)	15 (2.2%)	8.1	461^st of 476 public middle schools	3.2%		8.4	451^st of 469 public middle schools	3.8%	10	11.9	19.2	10.7	14.2	706.0	715.0	8.8	6.0	8.8	$17,438
Westlake Middle School	Public	6-8	2800 West 135th Avenue	Broomfield	80020	Broomfield County	Adams 12 Five Star Schools	No	No	No	No	(720) 972-5200	853	46	18.6	32.7%	503 (59.0%)	7 (0.8%)	252 (29.5%)	29 (3.4%)	1 (0.1%)	0 (0.0%)	60 (7.0%)	76.9	102^nd of 476 public middle schools	78.6%		70.1	123^rd of 469 public middle schools	73.8%	21	59.6	61.7	56.6	59.5	49.6	44.9	51.7	48.5	47.3	$15,756
Rodger Quist Middle School	Public	6-8	13451 Yosemite Street	Thornton	80602	Adams County	School District 27J	No	No	No	No	(303) 655-6950	855	46	18.5	38.6%	355 (41.5%)	12 (1.4%)	379 (44.3%)	68 (8.0%)	3 (0.4%)	0 (0.0%)	38 (4.4%)	41.3	234^th of 476 public middle schools	50.8%		31.6	303^rd of 469 public middle schools	35.4%	69	41.9	38.4	40.9	40.3	28.0	27.1	35.4	30.1	27.2	$13,601
Thornton Middle School	Public	6-8	9451 Hoffman Way	Thornton	80229	Adams County	Adams 12 Five Star Schools	No	No	No	Yes	(720) 972-5160	721	44	16.3	84.2%	77 (10.7%)	23 (3.2%)	557 (77.3%)	52 (7.2%)	2 (0.3%)	0 (0.0%)	9 (1.2%)	5.4	474^th of 476 public middle schools	0.4%		5.1	467^th of 469 public middle schools	0.4%	7	8.2	7.7	6.6	7.5	3.1	3.6	7.1	4.7	5.0	$18,637
Broomfield Heights Middle School	Public	6-8	1555 Daphne Street	Broomfield	80020	Broomfield County	Boulder Valley School District No. Re2	No	No	No	No	(720) 561-8400	490	30	16.5	34.3%	315 (64.3%)	6 (1.2%)	123 (25.1%)	13 (2.7%)	3 (0.6%)	0 (0.0%)	30 (6.1%)	66.1	139^th of 476 public middle schools	70.8%		70.3	122^nd of 469 public middle schools	74.0%	17	58.8	58.1	53.5	56.5	35.6	35.3	43.9	38.7	44.4	$21,740
Shaw Heights Middle School	Public	6-8	8780 Circle Drive	Westminster	80030	Adams County	Westminster Public Schools	No	No	No	No	(303) 428-9533	321	18	17.7	86.6%	47 (14.6%)	10 (3.1%)	240 (74.8%)	14 (4.4%)	0 (0.0%)	3 (0.9%)	7 (2.2%)	11.9	441^st of 476 public middle schools	7.4%		10.2	441^st of 469 public middle schools	6.0%		19.5	20.8	23.8	21.4	7.8	7.6	6.8	7.4	14.3	$21,463

Frequently Asked Questions about Century Middle School

How many students attend Century Middle School?

In the 2024-25 school year, 717 students attended Century Middle School.

Is Century Middle School a good school?

Century Middle School ranks 316^th of 476 Colorado middle schools. SchoolDigger rates this school 2 stars out of 5.

What high school do graduates of Century Middle School attend?

Students who attend Century Middle School usually go on to attend Mountain Range High School

What is the racial makeup of Century Middle School?

Students at Century Middle School are 43% White, 43% Hispanic, 6% Asian, 6% Two or more races, 1% African American.

What district is Century Middle School in?

Adams 12 Five Star Schools

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Latest Colorado data All new data »

2025–26 attendance dataNewOct 6, 2026

2025–26 CMAS, PSAT10, PSAT9 & SAT test scoresAug 19, 2026

2024–25 school spending dataJun 13, 2026

2024–25 dropout rates & graduation ratesJan 13, 2026

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