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South Ridge Elementary An IB World School

Q: Is South Ridge Elementary An IB World School a good school?

South Ridge Elementary An IB World School ranks 506 th of 946 Colorado elementary schools. SchoolDigger rates this school 2 stars out of 5.

Public Grades K-5

506^th

SchoolDigger Rank ?

of 946 Colorado Elementary Schools

Better than 47% of Colorado elementary schools

Summary

South Ridge Elementary An IB World School is a K–5 elementary school in Castle Rock, CO, serving 371 students within the highly rated Douglas County School District Re. 1, which ranks 6th out of 115 districts in Colorado.

Despite sitting in an exceptionally strong district, South Ridge’s academic performance lags behind its neighbors. The school ranks in the 46th percentile statewide—an improvement over the prior year—but nearby schools range from the 62nd to 88th percentile. Proficiency rates tell a similar story: 40.8% of students are proficient in ELA and 35.8% in math, well below district averages of 63.8% and 57.2%. One of the most important contextual factors is the student population—53.1% of students qualify for free/reduced lunch, far higher than nearby Castle Rock Elementary at 32.1% and most other area schools below 25%. Chronic absenteeism affects 22.5% of students, above the district’s 16.6% average. On a positive note, South Ridge maintains a 13.1:1 student–teacher ratio, the lowest among comparable schools in the area.

South Ridge holds an International Baccalaureate World School designation, yet its CMAS scores trail state averages in every subject. Math has been a persistent challenge, though the most recent year brought a strong 9-point jump to 35.8% proficiency. Concerningly, math proficiency declines as students advance—46% in 3rd grade falls to 28% in 5th grade. Science is also a concern, with just 30% of 5th graders proficient versus 55% districtwide. The school’s demographics have shifted rapidly, with free/reduced lunch eligibility rising nearly 19 points in just two years, yet its state ranking improved over the same period—a sign the school may be adding more value than proficiency scores alone suggest. Addressing chronic absenteeism and the upper-grade math slide will likely be key priorities going forward.

371

Students ?

13.1

Student/teacher ratio ?

$21,450

Per pupil spending ?

53.1%

Free/reduced lunch eligible (2024-25) ?

All students in Colorado receive free school meals.

83.3%

Kindergartners fully immunized against measles (MMR) (2025-26)

Exemptions: 9.3% (MMR)

1100 South Street
Castle Rock, CO 80104-2139

(303) 387-5075

District: Douglas County School District No. Re 1

Students who attend South Ridge Elementary An IB World School usually attend:

Middle:	Mesa Middle School
High:	Douglas County High School

Racial breakdown:

White:

56.6%

Hispanic:

36.1%

African American:

2.7%

See top rated Colorado elementary schools

Compare South Ridge Elementary An IB World School to nearby elementary schools!

At a glance

▲ Ranking trend: Improving — 20th percentile in 2016 → 47th in 2026

Strengths

✓Ranking is trending up — up 27 percentile points since 2016

Worth a look

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

!Near the bottom of Douglas County School District No. Re 1's ranking

Students meeting standards (2025-2026) ?

This school37%

District avg60%

Colorado avg41%

506^th of 946

Colorado public elementary schools ?

Bottom 47%▲ up 26 pts since 2016

From bottom 20% (2016) to bottom 47% (2026)

See the entire ranking list of Colorado Elementary Schools →

★★★★★

SchoolDigger rating ?

57^th of 58Elementary Schools in the Douglas County School District No. Re 1

6^th of 114Douglas County School District No. Re 1 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	41.1	506 of 946	46.5%	★★☆☆☆
2025	32.5	593 of 950	37.6%	★★☆☆☆
2024	40.7	519 of 943	45.0%	★★☆☆☆
2023	33.9	571 of 933	38.8%	★★☆☆☆
2022	32.5	589 of 921	36.0%	★★☆☆☆
2021	25.3	565 of 710	20.4%	★☆☆☆☆
2019	22.7	743 of 965	23.0%	★☆☆☆☆
2018	20.6	712 of 917	22.4%	★☆☆☆☆
2017	17.4	770 of 929	17.1%	★☆☆☆☆
2016	20.0	729 of 914	20.2%	★☆☆☆☆
2015	25.1	686 of 938	26.9%	★☆☆☆☆
2014	22.6	763 of 962	20.7%	★☆☆☆☆
2013	22.8	764 of 954	19.9%	★☆☆☆☆
2012	24.1	739 of 935	21.0%	★☆☆☆☆
2011	21.8	751 of 935	19.7%	★☆☆☆☆
2010	30.8	679 of 925	26.6%	★☆☆☆☆
2009	44.2	540 of 872	38.1%	★★☆☆☆
2008	50.3	471 of 849	44.5%	★★☆☆☆
2007	41.5	548 of 852	35.7%	★★☆☆☆
2006	38.9	539 of 829	35.0%	★★☆☆☆
2005	23.3	657 of 823	20.2%	★☆☆☆☆
2004	35.2	559 of 808	30.8%	★★☆☆☆

Female

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	33.0	443 of 695	36.3%	★★☆☆☆
2025	25.4	503 of 694	27.5%	★☆☆☆☆
2024	28.4	491 of 684	28.2%	★☆☆☆☆
2023	24.4	470 of 642	26.8%	★☆☆☆☆
2022	22.8	467 of 595	21.5%	★☆☆☆☆
2021	15.3	333 of 351	5.1%	☆☆☆☆☆
2019	19.7	618 of 758	18.5%	★☆☆☆☆
2018	24.8	526 of 690	23.8%	★☆☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Colorado percentile	Rating
2025	38.2	207 of 337	38.6%	★★☆☆☆
2024	47.3	185 of 365	49.3%	★★★☆☆
2023	44.2	151 of 265	43.0%	★★☆☆☆
2022	38.3	121 of 203	40.4%	★★☆☆☆
2019	19.6	301 of 332	9.3%	☆☆☆☆☆
2018	27.1	243 of 308	21.1%	★☆☆☆☆

Male

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	34.4	437 of 697	37.3%	★★☆☆☆
2025	24.9	499 of 700	28.7%	★☆☆☆☆
2024	35.0	424 of 683	37.9%	★★☆☆☆
2023	32.1	424 of 649	34.7%	★★☆☆☆
2022	38.0	354 of 594	40.4%	★★☆☆☆
2021	21.0	314 of 352	10.8%	★☆☆☆☆
2019	17.8	637 of 764	16.6%	★☆☆☆☆
2018	14.9	608 of 693	12.3%	★☆☆☆☆

White

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	25.5	435 of 547	20.5%	★☆☆☆☆
2025	16.3	488 of 551	11.4%	★☆☆☆☆
2024	22.1	455 of 539	15.6%	★☆☆☆☆
2023	14.2	486 of 525	7.4%	☆☆☆☆☆
2022	20.4	398 of 454	12.3%	★☆☆☆☆
2019	10.4	570 of 596	4.4%	☆☆☆☆☆
2018	11.0	319 of 337	5.3%	☆☆☆☆☆

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)

Low Socio Economic Status (2025)39th percentile~ school

Male (2026)37th percentile-9 vs school

Female (2026)36th percentile-10 vs school

White (2026)20th percentile-26 vs school

By subject vs Colorado (2025-2026) ?

English Language Arts41%-4 vs state

Math36%~ state avg

Science30%-6 vs state

4.0

4 ratings · 3 written reviews

5★3

4★0

3★0

2★0

1★1

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What people are saying

by a citizen
Thursday, April 27, 2017

Great school with dedicated administration and staff Close Quote

by a parent on FaceBook
Thursday, September 18, 2014

School seems to only focus on the kids that need some extra help. If your child doesn't require special treatment or need some extra attention, they could potentially get lost in the crowd. Curriculum is not aggressive and doesn't challenge the majority of the kids or promote abstract thinking. Close Quote

by a parent
Monday, March 7, 2011

South Elementary is an IB world school. My kids come home so excited about what they've learned, that they (of their own volition) extend their learning to plays, drawings, polls for family members, stories and research at HOME! This school is diverse culturally and socio-economically and is a great community to be involved in. Close Quote

Schools Near South Ridge Elementary An IB World 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 Vaccination Finance All

School													Students/Teachers											Ranking (2026)				Ranking (2025)				CMAS English Language Arts (2026)							CMAS Math (2026)							CMAS Science (2026)		Vaccination (2025-26)		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	Vaccination: Kindergartners fully immunized against measles (MMR)	Vaccination: Exemption rate	Total
South Ridge Elementary An IB World School	Public	K-5	1100 South Street	Castle Rock	80104	Douglas County	Douglas County School District No. Re 1	No	No	No	Yes	(303) 387-5075	371	28	13.1	53.1%	210 (56.6%)	10 (2.7%)	134 (36.1%)	5 (1.3%)	1 (0.3%)	1 (0.3%)	10 (2.7%)	41.1	506^th of 946 public elementary schools	46.5%		32.5	593^rd of 950 public elementary schools	37.6%	87	41.3	33.3	50.0				40.8	46.0	31.8	28.0				35.8	30.0		83.3%	9.3%	$21,450
Castle Rock Elementary School	Public	PK, KG-6	1103 Canyon Drive	Castle Rock	80104	Douglas County	Douglas County School District No. Re 1	No	No	No	No	(303) 387-5000	440	31	14.1	32.0%	268 (60.9%)	10 (2.3%)	114 (25.9%)	16 (3.6%)	1 (0.2%)	1 (0.2%)	30 (6.8%)	61.4	341^st of 946 public elementary schools	64.0%		47.7	464^th of 950 public elementary schools	51.2%	123	54.7	50.0	56.0	41.3			50.7	52.8	37.0	56.0	28.3			43.8	46.9		90.2%	9.8%	$19,941
Rock Ridge Elementary School	Public	PK, KG-6	400 North Heritage Road	Castle Rock	80104	Douglas County	Douglas County School District No. Re 1	No	No	No	No	(303) 387-5150	449	30	15.2	22.7%	329 (73.3%)	7 (1.6%)	83 (18.5%)	1 (0.2%)	2 (0.4%)	1 (0.2%)	26 (5.8%)	61.2	346^th of 946 public elementary schools	63.4%		44.2	499^th of 950 public elementary schools	47.5%	153	46.3	47.4	57.4	52.2			50.7	43.6	38.6	59.3	46.7			46.9	35.2		95.2%	4.8%	$19,276
Academy Charter School	Public, Charter	PK, KG-8	1551 Prairie Hawk Drive	Castle Rock	80104	Douglas County	Douglas County School District No. Re 1	Yes	No	No	No	(303) 660-4881	581	36	16.1	10.5%	440 (75.7%)	5 (0.9%)	71 (12.2%)	24 (4.1%)	3 (0.5%)	0 (0.0%)	38 (6.5%)	85.6	126^th of 946 public elementary schools	86.7%		81.6	155^th of 950 public elementary schools	83.7%	29	72.9	82.0	54.1	66.0	87.5	88.6	74.6	76.3	79.7	55.0	62.3	66.1	77.3	69.2	46.0	84.1	81.1%	8.1%	$11,059
Sage Canyon Elementary	Public	PK, KG-6	2420 Autumn Sage Street	Castle Rock	80104	Douglas County	Douglas County School District No. Re 1	No	No	No	No	(720) 433-0110	552	33	16.5	9.8%	411 (74.5%)	9 (1.6%)	65 (11.8%)	13 (2.4%)	2 (0.4%)	2 (0.4%)	50 (9.1%)	80.1	173^rd of 946 public elementary schools	81.7%		72.6	250^th of 950 public elementary schools	73.7%	77	48.0	73.9	63.2				62.3	65.8	75.3	49.4				64.0	47.4		97.8%	2.2%	$17,887
World Compass Academy	Public, Charter	PK, KG-8	2490 South Perry Street	Castle Rock	80104	Douglas County	Douglas County School District No. Re 1	Yes	No	No	No	(303) 814-5200	791	48	16.4	15.5%	503 (63.6%)	10 (1.3%)	182 (23.0%)	24 (3.0%)	0 (0.0%)	0 (0.0%)	72 (9.1%)	71.3	254^th of 946 public elementary schools	73.2%		71	264^th of 950 public elementary schools	72.2%	10	61.5	60.6	53.9	58.6	72.0	62.2	60.8	71.0	43.7	43.4	37.0	71.7	64.3	55.0	44.0	65.0	91.7%	8.3%	$13,663
Renaissance Expedition Learn Outward Bound School	Public, Magnet	K-6	3960 Trailboss Lane	Castle Rock	80104	Douglas County	Douglas County School District No. Re 1	No	Yes	No	No	(303) 387-8000	361	22	16.6	6.1%	297 (82.3%)	5 (1.4%)	29 (8.0%)	4 (1.1%)	0 (0.0%)	0 (0.0%)	26 (7.2%)	62.7	329^th of 946 public elementary schools	65.2%		68.4	284^th of 950 public elementary schools	70.1%	45	55.8	43.8	60.8	83.3			57.7	51.9	29.2	37.3	66.7			43.4	43.1		83.3%	12.5%	$17,982
Aspen View Academy	Public, Charter	PK, KG-8	2131 Low Meadow Blvd	Castle Rock	80109	Douglas County	Douglas County School District No. Re 1	Yes	No	No	No	(720) 733-3436	1,018	56	18.0	10.2%	830 (81.5%)	11 (1.1%)	114 (11.2%)	10 (1.0%)	4 (0.4%)	1 (0.1%)	48 (4.7%)	59.5	361^st of 946 public elementary schools	61.8%		61.2	348^th of 950 public elementary schools	63.4%	13	37.9	43.1	46.0	49.0	76.8	62.1	51.6	51.5	54.9	45.0	31.3	57.9	66.2	50.4	60.0	58.7	94.6%	2.7%	$12,384
Flagstone Elementary School	Public	PK, KG-6	104 Lovington Street	Castle Rock	80104	Douglas County	Douglas County School District No. Re 1	No	No	No	No	(303) 387-5225	496	29	17.1	21.2%	359 (72.4%)	3 (0.6%)	90 (18.1%)	5 (1.0%)	1 (0.2%)	1 (0.2%)	37 (7.5%)	86.1	116^th of 946 public elementary schools	87.7%		81.5	157^th of 950 public elementary schools	83.5%	41	54.7	61.5	78.6	71.7			66.0	65.6	66.2	70.2	56.6			64.9	50.9		90.9%	7.3%	$16,403
Clear Sky Elementary	Public	PK, KG-6	1470 Clear Sky Way	Castle Rock	80109	Douglas County	Douglas County School District No. Re 1	No	No	No	No	(303) 387-5900	627	39	16.2	24.1%	436 (69.5%)	9 (1.4%)	135 (21.5%)	11 (1.8%)	4 (0.6%)	1 (0.2%)	31 (4.9%)	67.2	292^nd of 946 public elementary schools	69.1%		72.8	249^th of 950 public elementary schools	73.8%	43	43.7	44.7	60.2	65.8			53.2	49.4	43.5	42.4	71.8			50.9	50.6		95.3%	2.4%	$17,839

Frequently Asked Questions about South Ridge Elementary An IB World School

Is South Ridge Elementary An IB World School a good school?

South Ridge Elementary An IB World School ranks 506^th of 946 Colorado elementary schools. SchoolDigger rates this school 2 stars out of 5.

What is the racial makeup of South Ridge Elementary An IB World School?

Students at South Ridge Elementary An IB World School are 57% White, 36% Hispanic, 3% African American, 3% Two or more races, 1% Asian.

What schools do graduates of South Ridge Elementary An IB World School attend?

Students who attend South Ridge Elementary An IB World School usually go on to attend:

Middle : Mesa Middle School
High : Douglas County High School

How many students attend South Ridge Elementary An IB World School?

In the 2024-25 school year, 371 students attended South Ridge Elementary An IB World School.

What district is South Ridge Elementary An IB World School in?

Douglas County School District No. Re 1

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Latest Colorado data All new data »

2017–18 through 2025–26 immunization rates (updated)NewOct 19, 2026

2025–26 attendance dataOct 6, 2026

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

2024–25 school spending dataJun 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.