Beta You're viewing our redesigned school page. Prefer the classic layout?

Altona Middle School

Public Grades 6-8

26^th

SchoolDigger Rank ?

of 469 Colorado Middle Schools

Better than 94% of Colorado middle schools

Summary

Altona Middle School is a public middle school located in Longmont, Colorado, serving grades 6-8 with a total enrollment of 741 students. It is part of the St. Vrain Valley School District, which is ranked 27th out of 115 districts in Colorado and has a 4-star rating from SchoolDigger.

Altona Middle School consistently ranks among the top middle schools in Colorado, with a statewide ranking between 13th and 38th over the past 10 years. Its students consistently outperform the district and state averages in CMAS (Colorado Measures of Academic Success) assessments for English Language Arts, Math, and Science. The school also performs exceptionally well across various student subgroups, ranking in the top 10-30 middle schools in Colorado for Asian, Hispanic, White, Low Socioeconomic Status, and Gifted and Talented students. Additionally, Altona Middle School has maintained very low dropout rates, ranging from 0.6% to 2.2% over the past few years, which are significantly lower than the district and state averages.

While Altona Middle School outperforms the district and state averages, some of the nearby middle schools, such as Mead Middle School and Erie Middle School, also demonstrate strong academic performance, with rankings in the top 100 middle schools in Colorado. This suggests a high level of educational quality in the broader Longmont area. However, the school's increasing chronic absenteeism rates, while still better than the district average, may be an area of concern that the school and district should address to ensure continued academic success.

715

Students ?

18.5

Student/teacher ratio ?

$15,965

Per pupil spending ?

23.5%

Free/discounted lunch ?

4600 Clover Basin Drive
Longmont, CO 80503-7982

(720) 494-3980

District: St. Vrain Valley School District No. Re1J

Students who attend Altona Middle School usually attend:

High:

Silver Creek High School

Feeder schools for Altona Middle School:

Elementary:	Blue Mountain Elementary
	Eagle Crest Elementary School

Racial breakdown:

White:

69.4%

Hispanic:

15.0%

Asian:

9.9%

See top rated Colorado middle schools

Compare Altona Middle School to nearby middle schools!

At a glance

▬ Ranking trend: Holding steady — 97th percentile in 2015 → 94th in 2025

Strengths

✓Test scores above the Colorado average (68% vs 40% meeting standards)

✓Ranks in the top 6% of Colorado middle schools

✓Among the top-ranked schools in St. Vrain Valley School District No. Re1J

Worth a look

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

Students meeting standards (2024-2025) ?

This school68%

District avg48%

Colorado avg40%

26^th of 469

Colorado public middle schools ?

Top 6%▼ down 3 pts since 2015

See the entire ranking list of Colorado Middle Schools →

★★★★★

SchoolDigger rating ?

1^st of 8Middle Schools in the St. Vrain Valley School District No. Re1J

27^th of 115St. 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)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Colorado percentile	Rating
2025	92.5	26 of 469	94.5%	★★★★★
2024	93.6	24 of 485	95.1%	★★★★★
2023	93.8	25 of 480	94.8%	★★★★★
2022	88.7	38 of 448	91.5%	★★★★★
2021	88.1	32 of 369	91.3%	★★★★★
2019	93.1	21 of 458	95.4%	★★★★★
2018	94.0	17 of 418	95.9%	★★★★★
2017	94.0	13 of 424	96.9%	★★★★★
2016	94.5	18 of 400	95.5%	★★★★★
2015	95.9	13 of 436	97.0%	★★★★★
2014	90.9	26 of 461	94.4%	★★★★★
2013	89.5	31 of 454	93.2%	★★★★★
2012	88.2	32 of 425	92.5%	★★★★★
2011	89.9	26 of 422	93.8%	★★★★★
2010	88.6	28 of 409	93.2%	★★★★★
2009	84.7	44 of 377	88.3%	★★★★☆
2008	90.0	21 of 362	94.2%	★★★★★
2007	87.5	33 of 360	90.8%	★★★★★

Asian

Year	Avg score	Statewide rank	Colorado percentile	Rating
2025	70.3	9 of 26	65.4%	★★★★☆
2023	74.6	4 of 18	77.8%	★★★★☆
2019	78.4	4 of 25	84.0%	★★★★☆
2018	91.3	1 of 16	93.8%	★★★★★

Female

Year	Avg score	Statewide rank	Colorado percentile	Rating
2025	89.7	25 of 347	92.8%	★★★★★
2024	87.2	36 of 350	89.7%	★★★★☆
2023	90.4	27 of 363	92.6%	★★★★★
2022	79.4	52 of 326	84.0%	★★★★☆
2021	84.0	27 of 254	89.4%	★★★★☆
2019	92.9	17 of 352	95.2%	★★★★★
2018	92.4	16 of 315	94.9%	★★★★★

Gifted and Talented

Year	Avg score	Statewide rank	Colorado percentile	Rating
2025	77.1	10 of 132	92.4%	★★★★★
2024	76.8	13 of 126	89.7%	★★★★★
2023	67.5	46 of 125	63.2%	★★★☆☆
2022	68.0	30 of 93	67.7%	★★★★☆
2019	72.8	23 of 134	82.8%	★★★★☆
2018	73.6	18 of 121	85.1%	★★★★☆

Hispanic

Year	Avg score	Statewide rank	Colorado percentile	Rating
2024	74.8	30 of 199	84.9%	★★★★☆
2023	82.6	21 of 198	89.4%	★★★★☆
2022	75.4	26 of 169	84.6%	★★★★☆
2021	52.8	34 of 83	59.0%	★★★☆☆
2019	78.4	27 of 220	87.7%	★★★★☆
2018	79.6	23 of 165	86.1%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Colorado percentile	Rating
2025	84.7	14 of 241	94.2%	★★★★★
2024	80.8	24 of 244	90.2%	★★★★★
2023	90.4	8 of 241	96.7%	★★★★★
2022	65.0	39 of 197	80.2%	★★★★☆
2021	57.5	32 of 114	71.9%	★★★★☆
2019	75.5	29 of 240	87.9%	★★★★☆
2018	85.0	14 of 222	93.7%	★★★★★

Male

Year	Avg score	Statewide rank	Colorado percentile	Rating
2025	90.3	28 of 352	92.0%	★★★★★
2024	94.3	17 of 357	95.2%	★★★★★
2023	92.2	22 of 356	93.8%	★★★★★
2022	89.2	27 of 328	91.8%	★★★★★
2021	83.2	30 of 249	88.0%	★★★★☆
2019	89.5	31 of 343	91.0%	★★★★★
2018	91.4	19 of 317	94.0%	★★★★★

White

Year	Avg score	Statewide rank	Colorado percentile	Rating
2025	83.5	32 of 275	88.4%	★★★★☆
2024	86.9	21 of 273	92.3%	★★★★★
2023	87.3	24 of 286	91.6%	★★★★★
2022	78.8	41 of 265	84.5%	★★★★☆
2021	82.3	25 of 203	87.7%	★★★★☆
2019	86.9	23 of 283	91.9%	★★★★★
2018	90.7	18 of 199	91.0%	★★★★★

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)

Low Socio Economic Status (2025)94th percentile~ school

Female (2025)93rd percentile~ school

Gifted and Talented (2025)92nd percentile~ school

Male (2025)92nd percentile~ school

White (2025)88th percentile-6 vs school

Hispanic (2024)85th percentile-10 vs school

Asian (2025)65th percentile-29 vs school

By subject vs Colorado (2024-2025) ?

English Language Arts72%+27 vs state

Science66%+30 vs state

Math66%+30 vs state

★

No ratings yet

Be the first to rate Altona Middle School and help other families decide.

Rate Altona Middle School

Have first-hand experience? A quick rating - and a sentence or two about what stands out (teachers, academics, safety, communication) - helps other families know what to expect.

Takes about a minute. We email you a link to verify your review - your address is never shown publicly.

Tap a star to rate

Reviews

No written reviews yet. If you know this school, be the first to share what stands out.

Schools Near Altona Middle School

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

School													Students/Teachers											Ranking (2025)				Ranking (2024)				CMAS English Language Arts (2025)					CMAS Math (2025)					CMAS Science (2025)		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	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	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 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
Altona Middle School	Public	6-8	4600 Clover Basin Drive	Longmont	80503	Boulder County	St. Vrain Valley School District No. Re1J	No	No	No	No	(720) 494-3980	715	39	18.5	23.5%	496 (69.4%)	5 (0.7%)	107 (15.0%)	71 (9.9%)	0 (0.0%)	0 (0.0%)	36 (5.0%)	92.5	26^th of 469 public middle schools	94.5%		93.6	24^th of 485 public middle schools	95.1%	2		71.0	72.9	72.0	71.9		63.8	59.9	73.7	65.6		65.9	$15,965
Sunset Middle School	Public	6-8	1300 S. Sunset	Longmont	80501	Boulder County	St. Vrain Valley School District No. Re1J	No	No	No	No	(303) 776-3963	316	25	12.5	58.5%	126 (39.9%)	0 (0.0%)	173 (54.7%)	5 (1.6%)	2 (0.6%)	0 (0.0%)	10 (3.2%)	40.5	238^th of 469 public middle schools	49.3%		30.4	307^th of 485 public middle schools	36.7%	69		44.3	36.8	51.9	43.9		26.4	17.5	30.9	24.5		33.8	$20,752
Westview Middle School	Public	6-8	1651 Airport Road	Longmont	80503	Boulder County	St. Vrain Valley School District No. Re1J	No	No	No	No	(303) 772-3134	621	34	18.4	36.1%	439 (70.7%)	6 (1.0%)	145 (23.3%)	8 (1.3%)	3 (0.5%)	0 (0.0%)	20 (3.2%)	73.5	107^th of 469 public middle schools	77.2%		71.2	121^st of 485 public middle schools	75.1%	14		56.6	66.7	51.4	57.7		41.8	43.6	55.1	46.8		50.3	$16,305
Longs Peak Middle School	Public	5-8	1500 14th Avenue	Longmont	80501	Boulder County	St. Vrain Valley School District No. Re1J	No	No	No	Yes	(303) 776-5611	381	31	12.4	80.3%	93 (24.4%)	4 (1.0%)	275 (72.2%)	2 (0.5%)	1 (0.3%)	0 (0.0%)	6 (1.6%)	17.3	391^st of 469 public middle schools	16.6%		13.5	422^nd of 485 public middle schools	13.0%	31	18.5	25.3	28.3	26.9	25.6	11.1	13.2	13.2	19.8	14.8	16.7	13.7	$20,348
Trail Ridge Middle School	Public	6-8	1000 Button Rock Drive	Longmont	80504	Boulder County	St. Vrain Valley School District No. Re1J	No	No	No	No	(720) 494-3820	435	30	14.7	59.8%	161 (37.0%)	3 (0.7%)	251 (57.7%)	8 (1.8%)	1 (0.2%)	0 (0.0%)	11 (2.5%)	37.1	263^rd of 469 public middle schools	43.9%		29.8	310^th of 485 public middle schools	36.1%	47		39.5	35.9	37.8	37.8		27.8	24.3	32.1	27.7		31.0	$17,473
Erie Middle School	Public	6-8	650 Main Street	Erie	80516	Weld County	St. Vrain Valley School District No. Re1J	No	No	No	No	(303) 828-3391	762	38	20.1	15.5%	562 (73.8%)	10 (1.3%)	114 (15.0%)	41 (5.4%)	1 (0.1%)	0 (0.0%)	34 (4.5%)	81.8	69^th of 469 public middle schools	85.3%		79	79^th of 485 public middle schools	83.7%	10		58.8	64.6	59.2	61.1		58.0	51.9	57.5	55.6		51.4	$14,994
Centennial Middle School	Public	6-8	2205 Norwood Avenue	Boulder	80304	Boulder County	Boulder Valley School District No. Re2	No	No	No	No	(720) 561-5441	598	31	19.3	33.1%	379 (63.4%)	7 (1.2%)	172 (28.8%)	11 (1.8%)	1 (0.2%)	0 (0.0%)	26 (4.3%)	78.4	85^th of 469 public middle schools	81.9%		73	110^th of 485 public middle schools	77.3%	25		59.6	66.7	54.1	60.4		45.7	54.2	49.4	49.7		55.5	$17,736
Nevin Platt Middle School	Public	6-8	6096 Baseline Road	Boulder	80303	Boulder County	Boulder Valley School District No. Re2	No	No	No	No	(720) 561-5536	483	29	16.8	14.7%	389 (80.5%)	4 (0.8%)	47 (9.7%)	4 (0.8%)	1 (0.2%)	0 (0.0%)	36 (7.5%)	80.9	71^st of 469 public middle schools	84.9%		74.9	99^th of 485 public middle schools	79.6%	28		65.3	67.8	55.5	63.4		54.2	49.0	51.4	51.3		53.2	$19,411
Mead Middle School	Public	6-8	620 Welker Ave.	Mead	80542	Weld County	St. Vrain Valley School District No. Re1J	No	No	No	No	(970) 535-4446	571	32	17.8	27.0%	406 (71.1%)	4 (0.7%)	132 (23.1%)	10 (1.8%)	2 (0.4%)	0 (0.0%)	17 (3.0%)	80.4	74^th of 469 public middle schools	84.2%		83.7	63^rd of 485 public middle schools	87.0%	11		61.7	71.0	53.9	62.7		46.2	58.6	56.3	53.3		49.6	$16,865
Casey Middle School	Public	6-8	1301 High Street	Boulder	80304	Boulder County	Boulder Valley School District No. Re2	No	No	No	No	(720) 561-2700	363	29	12.6	65.0%	138 (38.0%)	3 (0.8%)	199 (54.8%)	8 (2.2%)	0 (0.0%)	1 (0.3%)	14 (3.9%)	33.1	291^st of 469 public middle schools	38.0%		34.2	285^th of 485 public middle schools	41.2%	6		26.3	40.4	43.8	36.5		9.7	24.4	30.8	21.1		33.7	$23,923

Frequently Asked Questions about Altona Middle School

Is Altona Middle School a good school?

Yes. Altona Middle School ranks in the top 5.5% of Colorado middle schools.

What district is Altona Middle School in?

St. Vrain Valley School District No. Re1J

What high school do graduates of Altona Middle School attend?

Students who attend Altona Middle School usually go on to attend Silver Creek High School

What is the racial makeup of Altona Middle School?

Students at Altona Middle School are 69% White, 15% Hispanic, 10% Asian, 5% Two or more races.

How many students attend Altona Middle School?

In the 2024-25 school year, 715 students attended Altona Middle School.

Rate Altona Middle School!

Other helpful SchoolDigger resources...

Compare to nearby schools

COColorado Middle School Rankings

COColorado District Rankings

Schools in Longmont, CO

Sign up for updates!

Be the first to know when there is an update for Altona Middle School!

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.