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Century Alt High

Public Grades 9-12

125^th

SchoolDigger Rank ?

of 131 New Mexico High Schools

Better than 5% of New Mexico high schools

Summary

Century Alt High is a public high school serving grades 9-12 in the Los Lunas school district, with 365 students. Despite its small size, the school has consistently ranked in the bottom quarter of Century Alt High has struggled with low graduation rates, ranging from 33% to 78% over the past few years, significantly lower than the 78% 4-year graduation rate at the nearby Valencia High and Los Lunas High schools.

The school's academic performance is also a concern, with students performing significantly below state and district averages on standardized tests. In 2024-2025, only 25.58% of 11th graders were proficient or better in science, compared to 36.25% in the Los Lunas district and 41.69% statewide. Similarly, only 16.44% of 11th graders were proficient or better in English Language Arts, compared to 33.33% in the district and 38.44% statewide. Additionally, Century Alt High has an extremely high percentage of students from low socioeconomic backgrounds, with 95.07% of students qualifying for free or reduced-price lunch in 2023-2024.

The school's challenges are further compounded by a very high student-teacher ratio of 35.7 in 2023-2024, significantly higher than the 20.2 and 18.5 ratios at Valencia High and Los Lunas High, respectively. These factors suggest that Century Alt High faces significant challenges in providing its students with the educational opportunities and resources they need to succeed.

353

Students ?

38.3

Student/teacher ratio ?

$9,869

Per pupil spending ?

99.4%

Free/discounted lunch ?

32 Sun Valley Rd
Los Lunas, NM 87031

(505) 866-8231

District: Los Lunas

Racial breakdown:

Hispanic:

74.8%

White:

15.9%

American Indian:

4.8%

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At a glance

▬ Ranking trend: Holding steady — 6th percentile in 2011 → 5th in 2025

Worth a look

!Test scores below the New Mexico average (20% vs 40% meeting standards)

!In the lower quartile statewide (5th percentile)

!Graduation rate below the New Mexico average (54% vs 81%)

Students meeting standards (2024-2025) ?

This school20%

District avg35%

New Mexico avg40%

125^th of 131

New Mexico public high schools ?

Bottom 5%▼ down 9 pts since 2015

From bottom 14% (2015) to bottom 5% (2025)

See the entire ranking list of New Mexico High Schools →

★★★★★

SchoolDigger rating ?

3^rd of 3High Schools in the Los Lunas

65^th of 82Los Lunas among New Mexico 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	New Mexico percentile	Rating
2025	10.2	125 of 131	4.6%	☆☆☆☆☆
2024	13.0	158 of 172	8.1%	☆☆☆☆☆
2018	11.4	171 of 182	6.0%	☆☆☆☆☆
2017	9.6	153 of 158	3.2%	☆☆☆☆☆
2016	19.2	163 of 185	11.9%	★☆☆☆☆
2015	17.5	166 of 193	14.0%	★☆☆☆☆
2014	13.8	172 of 198	13.1%	★☆☆☆☆
2013	10.6	157 of 177	11.3%	★☆☆☆☆
2012	11.0	145 of 163	11.0%	★☆☆☆☆
2011	7.3	147 of 157	6.4%	☆☆☆☆☆
2010	16.7	132 of 154	14.3%	★☆☆☆☆
2009	4.4	150 of 151	0.7%	☆☆☆☆☆
2008	5.8	140 of 146	4.1%	☆☆☆☆☆
2007	9.9	138 of 150	8.0%	☆☆☆☆☆
2006	29.0	99 of 134	26.1%	★☆☆☆☆
2005	7.0	124 of 129	3.9%	☆☆☆☆☆

Female

Year	Avg score	Statewide rank	New Mexico percentile	Rating
2024	6.8	138 of 142	2.8%	☆☆☆☆☆
2018	6.4	143 of 145	1.4%	☆☆☆☆☆

Hispanic

Year	Avg score	Statewide rank	New Mexico percentile	Rating
2025	19.8	84 of 98	14.3%	★☆☆☆☆
2024	11.1	129 of 136	5.1%	☆☆☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	New Mexico percentile	Rating
2025	11.2	108 of 115	6.1%	☆☆☆☆☆
2024	14.8	115 of 127	9.4%	★☆☆☆☆
2018	11.7	156 of 164	4.9%	☆☆☆☆☆

Male

Year	Avg score	Statewide rank	New Mexico percentile	Rating
2024	24.1	109 of 150	27.3%	★☆☆☆☆

White

Year	Avg score	Statewide rank	New Mexico percentile	Rating
2025	9.1	112 of 117	4.3%	☆☆☆☆☆
2024	7.9	132 of 136	2.9%	☆☆☆☆☆

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)

Male (2024)27th percentile+19 vs school

Hispanic (2025)14th percentile+10 vs school

Low Socio Economic Status (2025)6th percentile~ school

White (2025)4th percentile~ school

Female (2024)3rd percentile-5 vs school

By subject vs New Mexico (2024-2025) ?

Science26%-16 vs state

English Language Arts16%-22 vs state

★

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Schools Near Century Alt High

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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 (2025)				Ranking (2024)				SAT School Day English Language Arts (2025)	SAT School Day Mathematics (2025)	NM-ASR Science (2025)			NM-MSSA English Language Arts (2025)				NM-MSSA Mathematics (2025)				Per Pupil Expenditures (2019)
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	SAT School Day English Language Arts 11th Grade	SAT School Day Mathematics 11th Grade	NM-ASR Science 8th Grade	NM-ASR Science 11th Grade	NM-ASR Science All Grades	NM-MSSA English Language Arts 6th Grade	NM-MSSA English Language Arts 7th Grade	NM-MSSA English Language Arts 8th Grade	NM-MSSA English Language Arts All Grades	NM-MSSA Mathematics 6th Grade	NM-MSSA Mathematics 7th Grade	NM-MSSA Mathematics 8th Grade	NM-MSSA Mathematics All Grades	Total
Century Alt High	Public	9-12	32 Sun Valley Rd	Los Lunas	87031	Valencia County	Los Lunas	No	(n/a)	No	Yes	(505) 866-8231	353	9	38.3	99.4%	56 (15.9%)	4 (1.1%)	264 (74.8%)	0 (0.0%)	17 (4.8%)	1 (0.3%)	11 (3.1%)	10.2	125^th of 131 public high schools	4.6%		13	158^th of 172 public high schools	8.1%	33	16.4			25.6										$9,869
Los Lunas High	Public	9-12	1776 Emilio Lopez Rd	Los Lunas	87031	Valencia County	Los Lunas	No	(n/a)	No	Yes	(505) 866-8231	1,460	75	19.4	100.0%	265 (18.2%)	10 (0.7%)	1,031 (70.6%)	5 (0.3%)	103 (7.1%)	2 (0.1%)	44 (3.0%)	27.4	88^th of 131 public high schools	32.8%		51.1	69^th of 172 public high schools	59.9%	19	33.8	8.2		34.7										$7,812
Central Nm Corrections	Public	8-12	1525 Morris Rd	Los Lunas	87031	Valencia County	Nm Corrections	No	(n/a)	No	No	(505) 383-3359	1	1	1.0		0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)								(n/a)
Valencia High	Public	9-12	301 Bonita Vista Blvd	Los Lunas	87031	Valencia County	Los Lunas	No	(n/a)	No	Yes	(505) 866-8231	960	41	23.4	100.0%	222 (23.1%)	10 (1.0%)	671 (69.9%)	0 (0.0%)	39 (4.1%)	0 (0.0%)	18 (1.9%)	34	74^th of 131 public high schools	43.5%		29.1	106^th of 172 public high schools	38.4%	32	38.2	7.7		41.7										$8,815
Belen Infinity High	Public	9-12	221 S 4th St	Belen	87002	Valencia County	Belen	No	(n/a)	No	Yes	(505) 966-1500	112	10	11.7	100.0%	24 (21.4%)	2 (1.8%)	82 (73.2%)	0 (0.0%)	3 (2.7%)	0 (0.0%)	1 (0.9%)	41.3	58^th of 131 public high schools	55.7%					(n/a)	38.7			41.9										$8,877
Belen High	Public	9-12	1619 West Delgado Ave	Belen	87002	Valencia County	Belen	No	(n/a)	No	Yes	(505) 966-1300	958	51	18.9	99.9%	154 (16.1%)	10 (1.0%)	752 (78.5%)	2 (0.2%)	20 (2.1%)	0 (0.0%)	20 (2.1%)	19	108^th of 131 public high schools	17.6%		27.2	114^th of 172 public high schools	33.7%	6	28.9	4.2		29.0										$9,581
Atrisco Heritage Academy High School	Public	9-12	10800 Dennis Chavez Blv SW	Albuquerque	87121	Bernalillo County	Albuquerque	No	(n/a)	No	Yes	(505) 243-1458	1,930	133	14.5	96.4%	69 (3.6%)	38 (2.0%)	1,762 (91.3%)	5 (0.3%)	28 (1.5%)	1 (0.1%)	27 (1.4%)	18.4	112^th of 131 public high schools	14.5%		15.5	151^st of 172 public high schools	12.2%	39	31.2	3.5		25.4										$8,563
South Valley Academy	Public, Charter	6-12	3426 Blake Road SW	Albuquerque	87105	Bernalillo County	Albuquerque	Yes	(n/a)	No	Yes	(505) 452-3132	604	52	11.6	99.5%	444 (73.5%)	0 (0.0%)	87 (14.4%)	0 (0.0%)	3 (0.5%)	1 (0.2%)	69 (11.4%)	38.6	65^th of 131 public high schools	50.4%		25.6	119^th of 172 public high schools	30.8%	54	37.7	12.7	23.8	42.9	32.0	34.0	39.0	32.1	35.2	20.2	15.8	8.3	15.0	$8,739
Robert F. Kennedy Charter	Public, Charter	6-12	4300 Blake Rd SW	Albuquerque	87121	Bernalillo County	Albuquerque	Yes	(n/a)	No	Yes	(505) 243-1118	314	26	12.3	99.7%	8 (2.5%)	5 (1.6%)	292 (93.0%)	1 (0.3%)	1 (0.3%)	4 (1.3%)	3 (1.0%)								(n/a)				34.2	27.1			31.0	23.7					$10,714
Rio Grande High	Public	9-12	2300 Arenal Rd SW	Albuquerque	87105	Bernalillo County	Albuquerque	No	(n/a)	No	Yes	(505) 873-0220	1,475	115	12.7	98.7%	36 (2.4%)	8 (0.5%)	1,398 (94.8%)	2 (0.1%)	19 (1.3%)	0 (0.0%)	12 (0.8%)	14	119^th of 131 public high schools	9.2%		13.5	155^th of 172 public high schools	9.9%	36	25.2	2.7		22.8										$9,858

Frequently Asked Questions about Century Alt High

Is Century Alt High a good school?

Century Alt High ranks in the bottom 4.6% of New Mexico high schools.

What is the racial makeup of Century Alt High?

Students at Century Alt High are 75% Hispanic, 16% White, 5% American Indian, 3% Two or more races, 1% African American.

What district is Century Alt High in?

Los Lunas

How many students attend Century Alt High?

In the 2024-25 school year, 353 students attended Century Alt High.

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

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.