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Carbon Valley Academy

Q: Is Carbon Valley Academy a good school?

Carbon Valley Academy ranks 498 th of 946 Colorado elementary schools. SchoolDigger rates this school 2 stars out of 5.

Public, Charter Grades PK, KG-8

498^th

SchoolDigger Rank ?

of 946 Colorado Elementary Schools

Better than 47% of Colorado elementary schools

Summary

Carbon Valley Academy is a small PK-8 school in Frederick, CO, serving 245 students as part of the St. Vrain Valley School District No. Re1J, a district that ranks in the 80th percentile statewide. Despite that strong district backdrop, the school's own results are well below district and state averages: only 24.1% of students were proficient in English Language Arts and 25.7% in math on the 2025-2026 CMAS tests, compared with district rates of 51.0% and 46.9%. The school's state ranking has improved this year to the 47th percentile, a meaningful rebound from the 27th–29th percentile of the prior two years, but it remains firmly in the bottom half of Colorado schools.

The contrast with nearby schools is striking. Just half a mile away, Legacy Elementary School posts nearly double the proficiency rates (49.8% ELA, 46.4% math) despite also serving a relatively high-need population. Grand View Elementary and Centennial Elementary also outperform Carbon Valley by roughly 20 points in both subjects, while Soaring Heights Pk-8 and Erie Elementary School post rates nearly three times higher. Only Thunder Valley Pk-8 shows similarly low scores.

Carbon Valley also has the highest chronic absenteeism in the local area at 28.5%, affecting roughly one in three students. The school's tiny 11.7:1 student-teacher ratio is the lowest among nearby schools, yet it hasn't translated into stronger outcomes. There is one bright spot: 4th-grade results nearly match district averages, but 5th-grade scores collapse, including just 16.7% proficiency in science versus a 43.6% district rate. With 49.8% of students qualifying for free or reduced-price lunch, the school faces real socioeconomic challenges, but its proximity to higher-performing schools with similar demographics suggests those challenges are not the whole story.

245

Students ?

11.7

Student/teacher ratio ?

$14,292

Per pupil spending ?

49.8%

Free/discounted lunch ?

4040 Coriolis Way
Frederick, CO 80530

(303) 774-9555

District: St. Vrain Valley School District No. Re1J

Racial breakdown:

Hispanic:

50.6%

White:

45.7%

Two or more races:

2.0%

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At a glance

▲ Ranking trend: Rebounding — 21st percentile in 2015 → 47th in 2026

Strengths

✓Ranking is rebounding — up to 47th (2026) from a 21st-percentile low (2015)

✓Small classes — about 12 students per teacher

Worth a look

!Test scores below the Colorado average (24% vs 40% meeting standards)

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

!English Language Arts scores 21 pts below the Colorado average

Students meeting standards (2025-2026) ?

This school24%

District avg48%

Colorado avg40%

498^th of 946

Colorado public elementary schools ?

Bottom 47%▲ up 12 pts since 2022

From bottom 35% (2022) to bottom 47% (2026)

See the entire ranking list of Colorado Elementary Schools →

★★★★★

SchoolDigger rating ?

25^th of 32Elementary Schools in the St. Vrain Valley School District No. Re1J

23^rd of 114St. Vrain Valley School District No. Re1J 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)

Elementary school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	42.0	498 of 946	47.4%	★★☆☆☆
2025	23.0	696 of 950	26.7%	★☆☆☆☆
2024	25.2	674 of 943	28.5%	★☆☆☆☆
2023	31.1	600 of 933	35.7%	★★☆☆☆
2022	32.2	599 of 921	35.0%	★★☆☆☆
2015	20.9	741 of 938	21.0%	★☆☆☆☆
2014	50.3	495 of 962	48.5%	★★☆☆☆
2013	51.9	491 of 954	48.5%	★★☆☆☆
2012	59.7	389 of 935	58.4%	★★★☆☆
2011	63.9	365 of 935	61.0%	★★★☆☆
2010	49.8	520 of 925	43.8%	★★☆☆☆
2009	48.8	486 of 872	44.3%	★★☆☆☆
2008	47.4	491 of 849	42.2%	★★☆☆☆
2007	46.5	499 of 852	41.4%	★★☆☆☆

White

Year	Avg score	Statewide rank	Colorado percentile	Rating
2022	17.6	414 of 454	8.8%	☆☆☆☆☆

Middle school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Colorado percentile	Rating
2025	32.4	297 of 469	36.7%	★★☆☆☆
2024	38.5	262 of 485	46.0%	★★☆☆☆
2023	37.5	271 of 480	43.5%	★★☆☆☆
2013	73.5	106 of 454	76.7%	★★★★☆
2012	53.7	212 of 425	50.1%	★★★☆☆
2011	25.0	336 of 422	20.4%	★☆☆☆☆
2010	16.8	358 of 409	12.5%	★☆☆☆☆
2009	52.8	198 of 377	47.5%	★★☆☆☆
2008	42.3	228 of 362	37.0%	★★☆☆☆
2007	12.8	323 of 360	10.3%	★☆☆☆☆

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)

Elementary school

White (2022)9th percentile-26 vs school

By subject vs Colorado (2025-2026) ?

Math26%-12 vs state

English Language Arts24%-21 vs state

Science17%-19 vs state

4.2

6 ratings · 4 written reviews

5★4

4★1

3★0

2★0

1★1

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What people are saying

by a citizen
Monday, May 8, 2017

Most dedicated staff around. Close Quote

by a parent
Thursday, February 9, 2017

The administration at this school does not follow policies, they can not keep teachers, they do not follow IEP's, will not listen to parents, do not document records accurately. Close Quote

by a parent
Tuesday, January 24, 2017

This school has great teachers and administration. They really are a community and care about their students and families. Close Quote

by a parent
Wednesday, September 9, 2015

Innovative school! Love this schools approach to learning. The science and social studies curriculum is top notch. Love the new lunch program and emphasis on being fit and healthy. Close Quote

Schools Near Carbon Valley Academy

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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 3rd Grade	CMAS English Language Arts 4th Grade	CMAS English Language Arts 5th Grade	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 3rd Grade	CMAS Math 4th Grade	CMAS Math 5th Grade	CMAS Math 6th Grade	CMAS Math 7th Grade	CMAS Math 8th Grade	CMAS Math All Grades	CMAS Science 5th Grade	CMAS Science 8th Grade	Total
Carbon Valley Academy	Public, Charter	PK, KG-8	4040 Coriolis Way	Frederick	80530	Weld County	St. Vrain Valley School District No. Re1J	Yes	No	No	No	(303) 774-9555	245	21	11.7	49.8%	112 (45.7%)	4 (1.6%)	124 (50.6%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	5 (2.0%)	42	498^th of 946 public elementary schools	47.4%		23	696^th of 950 public elementary schools	26.7%	198	694.0	52.4	42.1	717.0			24.1	720.0	47.6	26.3	719.0			25.7	16.7		$14,292
Legacy Elementary School	Public	PK, KG-5	7701 Eagle Boulevard	Frederick	80504	Weld County	St. Vrain Valley School District No. Re1J	No	No	No	No	(720) 652-8160	430	25	17.0	37.7%	280 (65.1%)	6 (1.4%)	109 (25.3%)	13 (3.0%)	0 (0.0%)	1 (0.2%)	21 (4.9%)	61.1	348^th of 946 public elementary schools	63.2%		46	477^th of 950 public elementary schools	49.8%	129	40.7	45.5	66.1				49.8	50.6	40.3	47.6				46.4	46.8		$19,473
Grand View Elementary	Public	PK, KG-5	6601 Aggregate Blvd	Frederick	80516	Boulder County	St. Vrain Valley School District No. Re1J	No	No	No	No	(303) 702-8000	446	26	17.4	31.8%	279 (62.6%)	4 (0.9%)	123 (27.6%)	25 (5.6%)	0 (0.0%)	0 (0.0%)	15 (3.4%)	50.6	432^nd of 946 public elementary schools	54.3%		56.6	393^rd of 950 public elementary schools	58.6%	39	41.8	47.0	46.0				44.9	47.8	41.8	40.6				43.5	30.2		$17,180
Thunder Valley Pk-8	Public	PK, KG-8	555 8th Street	Frederick	80530	Weld County	St. Vrain Valley School District No. Re1J	No	No	No	No	(303) 833-2456	880	55	15.8	63.1%	280 (31.8%)	12 (1.4%)	542 (61.6%)	19 (2.2%)	3 (0.3%)	0 (0.0%)	24 (2.7%)	22.9	698^th of 946 public elementary schools	26.2%		15.2	802^nd of 950 public elementary schools	15.6%	104	24.5	31.9	36.7	21.1	33.3	14.6	27.1	25.5	27.5	30.9	15.8	14.3	19.3	22.4	20.3	12.8	$18,310
Centennial Elementary	Public	PK, KG-5	10290 Neighbors Parkway	Firestone	80504	Weld County	St. Vrain Valley School District No. Re1J	No	No	No	No	(720) 652-8240	525	33	16.1	33.9%	318 (60.6%)	5 (1.0%)	152 (29.0%)	19 (3.6%)	0 (0.0%)	3 (0.6%)	28 (5.3%)	45.6	465^th of 946 public elementary schools	50.8%		53.3	423^rd of 950 public elementary schools	55.5%	42	33.3	45.5	47.1				41.9	43.2	34.1	45.6				40.4	30.9		$18,665
Prairie Ridge Elementary School	Public	PK, KG-5	6632 St Vrain Ranch Boulevard	Firestone	80504	Weld County	St. Vrain Valley School District No. Re1J	No	No	No	No	(720) 494-3641	387	25	15.3	39.5%	244 (63.0%)	2 (0.5%)	105 (27.1%)	15 (3.9%)	1 (0.3%)	1 (0.3%)	19 (4.9%)	49.4	437^th of 946 public elementary schools	53.8%		58	381^st of 950 public elementary schools	59.9%	56	34.9	45.0	43.8				41.2	54.0	51.7	36.9				47.3	27.7		$19,977
Firestone Charter Academy	Public, Charter	PK, KG-8	5753 Twilight Avenue	Firestone	80504	Weld County	St. Vrain Valley School District No. Re1J	Yes	No	No	No	(303) 772-3711	600	43	13.8	22.3%	425 (70.8%)	3 (0.5%)	123 (20.5%)	16 (2.7%)	2 (0.3%)	2 (0.3%)	29 (4.8%)	60.3	355^th of 946 public elementary schools	62.5%		52.7	428^th of 950 public elementary schools	54.9%	73	57.1	58.8	55.7	55.6	75.0	62.2	59.6	60.3	45.6	24.3	27.8	47.5	37.8	40.4	36.2	35.1	$13,547
Kenneth Homyak Pk-8	Public	PK, KG-8	3927 York Street	Dacono	80514	Weld County	Weld re-8 schools	No	No	No	No	(303) 857-3380	311	21	15.0	18.6%	172 (55.3%)	3 (1.0%)	107 (34.4%)	10 (3.2%)	0 (0.0%)	6 (1.9%)	13 (4.2%)	62.1	334^th of 946 public elementary schools	64.7%		59.4	367^th of 950 public elementary schools	61.4%	33	51.4	48.4	52.5		56.4	767.0	53.0	48.6	739.0	50.0		43.6	75.0	48.6	40.0	58.3	$14,504
Soaring Heights Pk-8	Public	PK, KG-8	3280 County Road 5	Erie	80516	Boulder County	St. Vrain Valley School District No. Re1J	No	No	No	No	(303) 702-8020	1,211	72	16.7	12.6%	891 (73.6%)	10 (0.8%)	178 (14.7%)	65 (5.4%)	2 (0.2%)	0 (0.0%)	65 (5.4%)	85.3	131^st of 946 public elementary schools	86.2%		80	172^nd of 950 public elementary schools	81.9%	41	65.2	64.7	68.6	57.9	57.8	57.6	61.6	76.3	58.5	61.5	54.0	51.6	66.4	61.1	59.4	45.0	$17,217
Highlands Elementary School	Public	PK, KG-5	475 Highlands Circle	Erie	80516	Boulder County	St. Vrain Valley School District No. Re1J	No	No	No	No	(303) 776-6200	528	31	17.3	15.3%	350 (66.3%)	7 (1.3%)	84 (15.9%)	40 (7.6%)	1 (0.2%)	2 (0.4%)	44 (8.3%)	88.7	83^rd of 946 public elementary schools	91.2%		88.2	96^th of 950 public elementary schools	89.9%	13	67.1	71.9	68.7				69.5	62.5	66.7	62.7				64.2	64.6		$18,103

Frequently Asked Questions about Carbon Valley Academy

How many students attend Carbon Valley Academy?

In the 2024-25 school year, 245 students attended Carbon Valley Academy.

Is Carbon Valley Academy a good school?

Carbon Valley Academy ranks 498^th of 946 Colorado elementary schools. SchoolDigger rates this school 2 stars out of 5.

What district is Carbon Valley Academy in?

St. Vrain Valley School District No. Re1J

What is the racial makeup of Carbon Valley Academy?

Students at Carbon Valley Academy are 51% Hispanic, 46% White, 2% Two or more races, 2% African American.

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Latest Colorado data All new data »

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

2024–25 attendance dataAug 27, 2025

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.