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Mountain Middle School

Q: Is Mountain Middle School a good school?

Mountain Middle School ranks 101 st of 946 Colorado elementary schools. SchoolDigger rates this school 4 stars out of 5.

Public, Charter Grades K-8

101^st

SchoolDigger Rank ?

of 946 Colorado Elementary Schools

Better than 89% of Colorado elementary schools

Summary

Mountain Middle School is a public charter school in Durango, CO, serving 302 students in grades 4 through 8 under the State Charter School Institute, and it has established itself as one of the strongest middle-level schools in Colorado, earning five-star ratings and ranking in the 90th percentile or above for several consecutive years before a modest dip to the 84th percentile in 2025–26.

Academically, Mountain outpaces its local peers by a wide margin. In 2025–26, 63.5% of Mountain students were proficient in English Language Arts, compared with 47.8% at Miller Middle School, 46.4% at Escalante Middle School, and the state average of 44.7%. Math proficiency was even more striking: 63.3% of Mountain students were proficient, nearly double Miller's 33.6% and well above the state average of 37.3%. Science is a particular strength, with 5th grade science proficiency at 69% and 8th grade at 54.2% — about 33 and 19 percentage points above statewide averages, respectively. The one clear weak spot is 7th grade math, where proficiency drops to 35.3% — still above the state average, but far below the school's own 8th grade math performance of 79.2%.

Perhaps the most striking difference is attendance. Mountain's chronic absenteeism rate was just 6.6% in 2024–25, compared with 28.4% statewide and between 28.7% and 42.3% at nearby middle schools in Durango School District No. 9-R, Bayfield School District No. 10Jt-R, and Ignacio School District No. 11Jt. The school also reports a 0% dropout rate. All of this is achieved with a higher student–teacher ratio (18.8) than neighboring schools, which suggests strong instructional efficiency and a positive school culture. While the recent ranking decline, the 7th grade math dip, and gifted and talented outcomes (30th percentile in 2023–24) are worth monitoring, Mountain remains clearly the academic leader among Durango-area middle schools.

302

Students ?

18.8

Student/teacher ratio ?

$14,022

Per pupil spending ?

108 West 31st Street
Durango, CO 81301-4231

(970) 828-5600

District: State Charter School Institute

Racial breakdown:

White:

86.8%

Hispanic:

8.6%

Two or more races:

2.6%

See top rated Colorado elementary schools

Compare Mountain Middle School to nearby elementary schools!

At a glance

▲ Ranking trend: Improving — 83rd percentile in 2019 → 89th in 2026

Strengths

✓Test scores above the Colorado average (63% vs 40% meeting standards)

✓Ranks in the top 11% of Colorado elementary schools

✓Ranking is trending up — up 6 percentile points since 2019

Worth a look

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

Students meeting standards (2025-2026) ?

This school63%

District avg31%

Colorado avg40%

Elementary school

101^st of 946

Colorado public elementary schools ?

Top 11%▲ up 6 pts since 2019

From top 17% (2019) to top 11% (2026)

See the entire ranking list of Colorado Elementary Schools →

★★★★★

SchoolDigger rating ?

Middle school

75^th of 476

Colorado public middle schools ?

Top 16%▲ up 6 pts since 2016

From top 22% (2016) to top 16% (2026)

See the entire ranking list of Colorado Middle Schools →

★★★★★

SchoolDigger rating ?

1^st of 16Elementary Schools in the State Charter School Institute

51^st of 114State Charter School Institute 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	87.7	101 of 946	89.3%	★★★★☆
2025	89.6	76 of 950	92.0%	★★★★★
2024	91.7	58 of 943	93.8%	★★★★★
2023	88.5	86 of 933	90.8%	★★★★★
2022	86.3	102 of 921	88.9%	★★★★☆
2021	80.9	146 of 710	79.4%	★★★★☆
2019	80.3	164 of 965	83.0%	★★★★☆

Female

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	81.2	108 of 695	84.5%	★★★★☆
2025	79.0	113 of 694	83.7%	★★★★☆
2024	83.8	84 of 684	87.7%	★★★★☆
2023	77.7	122 of 642	81.0%	★★★★☆

Male

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	83.7	94 of 697	86.5%	★★★★☆
2025	89.4	51 of 700	92.7%	★★★★★
2024	90.5	44 of 683	93.6%	★★★★★
2023	87.0	68 of 649	89.5%	★★★★☆

White

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	70.7	139 of 547	74.6%	★★★★☆
2025	73.2	120 of 551	78.2%	★★★★☆
2024	81.8	60 of 539	88.9%	★★★★☆
2022	78.5	75 of 454	83.5%	★★★★☆

Middle school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	80.6	75 of 476	84.2%	★★★★☆
2025	88.0	45 of 469	90.4%	★★★★★
2024	92.8	27 of 485	94.4%	★★★★★
2023	91.4	35 of 480	92.7%	★★★★★
2022	90.4	33 of 448	92.6%	★★★★★
2021	93.6	20 of 369	94.6%	★★★★★
2019	81.5	61 of 458	86.7%	★★★★☆
2018	77.6	70 of 418	83.3%	★★★★☆
2017	69.5	104 of 424	75.5%	★★★★☆
2016	68.2	89 of 400	77.8%	★★★★☆
2015	37.9	260 of 436	40.4%	★★☆☆☆
2014	76.1	93 of 461	79.8%	★★★★☆

Female

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	70.9	89 of 368	75.8%	★★★★☆
2025	78.8	62 of 347	82.1%	★★★★☆
2024	81.1	48 of 350	86.3%	★★★★☆
2023	87.1	37 of 363	89.8%	★★★★★
2022	88.8	26 of 326	92.0%	★★★★★
2021	89.9	20 of 254	92.1%	★★★★★
2019	77.2	67 of 352	81.0%	★★★★☆
2018	66.2	86 of 315	72.7%	★★★★☆

Gifted and Talented

Year	Avg score	Statewide rank	Colorado percentile	Rating
2024	45.5	88 of 126	30.2%	★★☆☆☆

Male

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	78.0	66 of 372	82.3%	★★★★☆
2025	88.7	32 of 352	90.9%	★★★★★
2024	92.4	20 of 357	94.4%	★★★★★
2023	86.0	39 of 356	89.0%	★★★★☆
2022	83.9	38 of 328	88.4%	★★★★☆
2021	89.2	23 of 249	90.8%	★★★★★
2019	87.0	38 of 343	88.9%	★★★★☆
2018	78.0	45 of 317	85.8%	★★★★☆

White

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	68.0	74 of 278	73.4%	★★★★☆
2025	89.0	20 of 275	92.7%	★★★★★
2024	85.2	26 of 273	90.5%	★★★★★
2023	89.7	17 of 286	94.1%	★★★★★
2022	91.0	16 of 265	94.0%	★★★★★

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)

Elementary school

Male (2026)87th percentile-3 vs school

Female (2026)84th percentile-5 vs school

White (2026)75th percentile-15 vs school

Middle school

Male (2026)82nd percentile~ school

Female (2026)76th percentile-8 vs school

White (2026)73rd percentile-11 vs school

Gifted and Talented (2024)30th percentile-64 vs school

By subject vs Colorado (2025-2026) ?

English Language Arts64%+19 vs state

Math63%+26 vs state

Science62%+27 vs state

1.0

2 ratings · 1 written review

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1★2

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What people are saying

by a parent
Tuesday, March 8, 2016

Could be a great school. Poor leadership that does not know how to deal with teenagers, especially boys. Not free, really, as so much out of pocket stuff just to complete assignments. A few really great teachers, but again, this is overshadowed by unreasonable leaders. Close Quote

Schools Near Mountain 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/reduced lunch (2024-25)	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
Mountain Middle School	Public, Charter	K-8	108 West 31st Street	Durango	81301	La Plata County	State Charter School Institute	Yes	No	No	No	(970) 828-5600	302	16	18.8	—	262 (86.8%)	0 (0.0%)	26 (8.6%)	1 (0.3%)	5 (1.7%)	0 (0.0%)	8 (2.6%)	87.7	101^st of 946 public elementary schools	89.3%		89.6	76^th of 950 public elementary schools	92.0%	25		61.7	73.7	54.7	59.2	68.1	63.5		70.0	72.4	58.5	35.3	79.2	63.3	69.0	54.2	$14,022
Riverview Elementary School	Public	PK, KG-5	2900 Mesa Avenue	Durango	81301	La Plata County	Durango School District No. 9-R	No	No	No	No	(970) 247-3862	374	31	12.0	30.5%	279 (74.6%)	1 (0.3%)	48 (12.8%)	2 (0.5%)	16 (4.3%)	1 (0.3%)	27 (7.2%)	73	231^st of 946 public elementary schools	75.6%		79.3	185^th of 950 public elementary schools	80.5%	46	63.2	61.5	63.2				62.7	69.1	43.1	38.9				49.4	50.7		$19,623
Needham Elementary School	Public	PK, KG-5	2425 West Third Avenue	Durango	81301	La Plata County	Durango School District No. 9-R	No	No	No	Yes	(970) 247-4791	367	32	11.5	42.2%	242 (65.9%)	3 (0.8%)	73 (19.9%)	2 (0.5%)	18 (4.9%)	0 (0.0%)	29 (7.9%)	69.4	271^st of 946 public elementary schools	71.4%		48	463^rd of 950 public elementary schools	51.3%	192	63.8	40.0	69.1				57.9	60.4	32.0	54.5				49.0	52.7		$19,117
Park Elementary School	Public	PK, KG-5	510 E. 6th Ave.	Durango	81301	La Plata County	Durango School District No. 9-R	No	No	No	Yes	(970) 247-3718	452	36	12.7	38.9%	256 (56.6%)	1 (0.2%)	110 (24.3%)	7 (1.5%)	38 (8.4%)	1 (0.2%)	37 (8.2%)	82.8	156^th of 946 public elementary schools	83.5%		79.7	176^th of 950 public elementary schools	81.5%	20	62.3	58.2	64.4				61.9	61.3	60.0	65.8				62.6	55.4		$19,787
The Juniper School	Public, Charter	K-8	225 Sawyer Dr	Durango	81302	La Plata County	Durango School District No. 9-R	Yes	No	No	No	(970) 764-4185	171	12	14.4	38.6%	136 (79.5%)	0 (0.0%)	28 (16.4%)	2 (1.2%)	0 (0.0%)	0 (0.0%)	5 (2.9%)	62.4	331^st of 946 public elementary schools	65.0%		60.1	356^th of 950 public elementary schools	62.5%	25	47.8	56.3	50.0				45.3	43.5	62.5	40.9				38.3	45.5		$13,921
Florida Mesa Elementary School	Public	PK, KG-5	216 Highway 172	Durango	81303	La Plata County	Durango School District No. 9-R	No	No	No	Yes	(970) 247-4250	293	28	10.3	52.6%	164 (56.0%)	0 (0.0%)	81 (27.6%)	3 (1.0%)	27 (9.2%)	0 (0.0%)	18 (6.1%)	34.2	581^st of 946 public elementary schools	38.6%		35.5	566^th of 950 public elementary schools	40.4%	15	55.0	26.8	47.1				42.6	42.5	23.3	17.6				28.2	11.8		$21,477
Animas Valley Elementary School	Public	PK, KG-5	373 Hermosa Meadows Road	Durango	81301	La Plata County	Durango School District No. 9-R	No	No	No	Yes	(970) 247-0124	185	18	10.1	37.8%	109 (58.9%)	0 (0.0%)	58 (31.4%)	0 (0.0%)	11 (5.9%)	0 (0.0%)	7 (3.8%)	41.8	502^nd of 946 public elementary schools	46.9%		47.5	467^th of 950 public elementary schools	50.8%	35	36.4	40.0	41.2				39.0	36.4	30.0	38.9				35.0	43.8		$23,709
Sunnyside Elementary School	Public	PK, KG-5	75 Cr 218	Durango	81303	La Plata County	Durango School District No. 9-R	No	No	No	Yes	(970) 259-5249	107	11	9.8	50.5%	67 (62.6%)	0 (0.0%)	32 (29.9%)	0 (0.0%)	2 (1.9%)	1 (0.9%)	5 (4.7%)								(n/a)							46.9							25.0			$25,867
Bayfield Intermediate School	Public	3-5	720 E Oak	Bayfield	81122	La Plata County	Bayfield School District No. 10Jt-R	No	No	No	Yes	(970) 884-9571	274	23	11.7	41.2%	195 (71.2%)	1 (0.4%)	52 (19.0%)	0 (0.0%)	12 (4.4%)	0 (0.0%)	14 (5.1%)	38.1	540^th of 946 public elementary schools	42.9%		47.4	468^th of 950 public elementary schools	50.7%	72	27.0	45.9	51.9				41.9	25.7	29.1	39.2				31.4	30.4		$00
Bayfield Primary School	Public	PK, KG-2	511 East Mustang Lane	Bayfield	81122	La Plata County	Bayfield School District No. 10Jt-R	No	No	No	Yes	(970) 884-0881	222	20	11.1	42.8%	154 (69.4%)	0 (0.0%)	49 (22.1%)	0 (0.0%)	7 (3.2%)	1 (0.5%)	11 (5.0%)								(n/a)																	$00

Frequently Asked Questions about Mountain Middle School

How many students attend Mountain Middle School?

In the 2024-25 school year, 302 students attended Mountain Middle School.

What is the racial makeup of Mountain Middle School?

Students at Mountain Middle School are 87% White, 9% Hispanic, 3% Two or more races, 2% American Indian.

What district is Mountain Middle School in?

State Charter School Institute

Is Mountain Middle School a good school?

Mountain Middle School ranks 101^st of 946 Colorado elementary schools. SchoolDigger rates this school 4 stars out of 5.

Rate Mountain Middle School!

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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.