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Challenge to Excellence Charter School

Public, Charter Grades K-8
30th
SchoolDigger Rank ?
of 946 Colorado Elementary Schools
Better than 97% of Colorado elementary schools
Summary

Challenge to Excellence Charter School in Parker, Colorado, is a K–8 public charter school serving 551 students in the Douglas County School District No. Re 1. It is one of the highest-performing schools in the state, ranking 30th out of 943 Colorado schools in 2025–2026 — the 97th percentile — with a five-star rating. That performance is consistent, not a one-year fluke: the school has ranked between 30th and 55th statewide over the past decade and has always earned four or five stars. The school serves a comparatively affluent population, with just 6.35% of students qualifying for free or reduced-price lunch, and it operates with a student-teacher ratio of 18.4.

Math is Challenge's biggest standout subject, with 81.5% of students proficient versus 57.2% in the district and just 37.3% statewide. Math scores have climbed sharply from 67.9% in 2022–2023. Science is also exceptional: 83.3% of 5th graders and 76.2% of 8th graders are proficient, far ahead of district and state averages. Overall ELA proficiency is a strong 78.6%, though 3rd grade ELA trails slightly behind the district average before jumping to 78.7% in 4th grade and reaching nearly 89% by 7th and 8th grade. While Parker Core Knowledge ranks higher overall, Challenge actually beats it in 5th grade science and clearly outperforms nearby North Star Academy in math and 5th grade science.

Challenge also stands out for its attendance culture, with chronic absenteeism of just 9.9% versus 16.6% for the district and 28.4% statewide. The school is on an upward trajectory across every subject, and it produces top-tier results despite a relatively high student-teacher ratio of 18.4 — slightly below North Star Academy's 18.9 but above Parker Core Knowledge's 15.6. That challenges the assumption that smaller classes automatically mean better outcomes. For families weighing Parker-area schools, Challenge to Excellence is an elite option, especially for those who prioritize math and science.

551
Students ?
18.4
Student/teacher ratio ?
$11,940
Per pupil spending ?
6.4%
Free/reduced lunch eligible (2024-25) ?
All students in Colorado receive free school meals.
98.6%
Kindergartners fully immunized against measles (MMR) (2025-26)
Exemptions: 1.4% (MMR)
 16995 East Carlson Drive
       Parker, CO  80134-8000

(303) 841-9816

District: Douglas County School District No. Re 1

Racial breakdown:

Asian:
60.1%
White:
25.4%
Hispanic:
7.6%
more
 See top rated Colorado elementary schools

 Compare Challenge to Excellence Charter School to nearby elementary schools!
At a glance
▬ Ranking trend: Holding steady — 95th percentile in 2016 → 97th in 2026
Strengths
✓Test scores above the Colorado average (80% vs 40% meeting standards)
✓Ranks in the top 3% of Colorado elementary schools
✓Among the top-ranked schools in Douglas County School District No. Re 1
Worth a look
!Some student groups rank well below the school's overall statewide standing
Students meeting standards (2025-2026) ?
This school80%
District avg60%
Colorado avg40%
Elementary school
30th of 946
Colorado public elementary schools ?
Top 3%▲ up 2 pts since 2016
See the entire ranking list of Colorado Elementary Schools →
★★★★★
SchoolDigger rating ?
Middle school
6th of 476
Colorado public middle schools ?
Top 1%▲ up 2 pts since 2016
See the entire ranking list of Colorado Middle Schools →
★★★★★
SchoolDigger rating ?
8th of 58Elementary Schools in the Douglas County School District No. Re 1
6th 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)
Elementary school ranking
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankColorado percentileRating
202694.830 of 94696.8%★★★★★
202594.633 of 95096.5%★★★★★
202491.955 of 94394.2%★★★★★
202393.147 of 93395.0%★★★★★
202292.548 of 92194.8%★★★★★
202192.648 of 71093.2%★★★★★
201992.253 of 96594.5%★★★★★
201894.733 of 91796.4%★★★★★
201794.337 of 92996.0%★★★★★
201692.944 of 91495.2%★★★★★
201588.183 of 93891.2%★★★★★
201482.0147 of 96284.7%★★★★☆
201384.3121 of 95487.3%★★★★☆
201281.4137 of 93585.3%★★★★☆
201182.4141 of 93584.9%★★★★☆
201077.2188 of 92579.7%★★★★☆
200966.0313 of 87264.1%★★★☆☆
200873.9212 of 84975.0%★★★★☆
200770.5258 of 85269.7%★★★☆☆
200675.7180 of 82978.3%★★★★☆
200575.9196 of 82376.2%★★★★☆
200470.8242 of 80870.0%★★★★☆

Asian

YearAvg scoreStatewide rankColorado percentileRating
202561.96 of 1353.8%★★★★☆
202460.08 of 1233.3%★★☆☆☆
202343.88 of 1546.7%★★★☆☆
202233.28 of 1020.0%★☆☆☆☆
202141.64 of 633.3%★★★☆☆

Female

YearAvg scoreStatewide rankColorado percentileRating
202689.644 of 69593.7%★★★★★
202591.636 of 69494.8%★★★★★
202485.074 of 68489.2%★★★★☆
202386.960 of 64290.7%★★★★★
202286.357 of 59590.4%★★★★★
202189.234 of 35190.3%★★★★★
201990.441 of 75894.6%★★★★★
201892.729 of 69095.8%★★★★★

Gifted and Talented

YearAvg scoreStatewide rankColorado percentileRating
202673.222 of 12081.7%★★★★☆
202580.71 of 11999.2%★★★★★

Male

YearAvg scoreStatewide rankColorado percentileRating
202694.520 of 69797.1%★★★★★
202595.715 of 70097.9%★★★★★
202492.731 of 68395.5%★★★★★
202390.047 of 64992.8%★★★★★
202288.452 of 59491.2%★★★★★
202185.551 of 35285.5%★★★★☆
201988.658 of 76492.4%★★★★★
201884.583 of 69388.0%★★★★☆

White

YearAvg scoreStatewide rankColorado percentileRating
202681.163 of 54788.5%★★★★☆
202588.827 of 55195.1%★★★★★
202472.3118 of 53978.1%★★★★☆
202367.3153 of 52570.9%★★★★☆
202273.3105 of 45476.9%★★★★☆
202176.464 of 28877.8%★★★★☆
201982.857 of 59690.4%★★★★★
201875.969 of 33779.5%★★★★☆
Middle school ranking
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankColorado percentileRating
202698.86 of 47698.7%★★★★★
202597.111 of 46997.7%★★★★★
202496.014 of 48597.1%★★★★★
202396.311 of 48097.7%★★★★★
202295.417 of 44896.2%★★★★★
202198.09 of 36997.6%★★★★★
201988.438 of 45891.7%★★★★★
201887.434 of 41891.9%★★★★★
201791.325 of 42494.1%★★★★★
201695.214 of 40096.5%★★★★★
201584.848 of 43689.0%★★★★☆
201486.745 of 46190.2%★★★★★
201388.442 of 45490.7%★★★★★
201285.051 of 42588.0%★★★★☆
201183.256 of 42286.7%★★★★☆
201080.464 of 40984.4%★★★★☆
200979.267 of 37782.2%★★★★☆
200880.959 of 36283.7%★★★★☆
200766.5115 of 36068.1%★★★☆☆
200676.277 of 34677.7%★★★★☆
200569.3102 of 34070.0%★★★★☆
200467.3104 of 33669.0%★★★☆☆

Asian

YearAvg scoreStatewide rankColorado percentileRating
202683.83 of 2788.9%★★★★★
202568.411 of 2657.7%★★★☆☆
202478.64 of 2181.0%★★★★☆
202372.45 of 1872.2%★★★★☆

Female

YearAvg scoreStatewide rankColorado percentileRating
202696.99 of 36897.6%★★★★★
202594.115 of 34795.7%★★★★★
202491.322 of 35093.7%★★★★★
202392.518 of 36395.0%★★★★★
202288.030 of 32690.8%★★★★★
201993.914 of 35296.0%★★★★★
201886.227 of 31591.4%★★★★★

Gifted and Talented

YearAvg scoreStatewide rankColorado percentileRating
202685.32 of 15498.7%★★★★★

Male

YearAvg scoreStatewide rankColorado percentileRating
202698.85 of 37298.7%★★★★★
202597.39 of 35297.4%★★★★★
202496.610 of 35797.2%★★★★★
202394.214 of 35696.1%★★★★★
202296.311 of 32896.6%★★★★★
201977.562 of 34381.9%★★★★☆
201875.952 of 31783.6%★★★★☆

White

YearAvg scoreStatewide rankColorado percentileRating
202696.97 of 27897.5%★★★★★
202483.630 of 27389.0%★★★★☆
202381.843 of 28685.0%★★★★☆
202285.228 of 26589.4%★★★★☆
202192.88 of 20396.1%★★★★★
201974.953 of 28381.3%★★★★☆
201862.865 of 19967.3%★★★☆☆
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
Male (2026)97th percentile~ school
Female (2026)94th percentile-3 vs school
White (2026)88th percentile-8 vs school
Gifted and Talented (2026)82nd percentile-15 vs school
Asian (2025)54th percentile-43 vs school
Middle school
Gifted and Talented (2026)99th percentile~ school
Male (2026)99th percentile~ school
Female (2026)98th percentile~ school
White (2026)97th percentile~ school
Asian (2026)89th percentile-10 vs school
By subject vs Colorado (2025-2026) ?
Math82%+44 vs state
Science81%+45 vs state
English Language Arts79%+34 vs state

3.4
5 ratings · 1 written review
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What people are saying
by a parent
Saturday, September 26, 2015

Open Quote Going downhill as they strive to make a name for themselves in "technology". Technology now teaches more than the teachers. It has been incorporated in a very disjointed manner just for the sake of adding technology. There is not a coordinated system for the students and it adds needless time and hoops. In fact, the technology is more for the teachers than the students! Examples: using videos of the teacher READING the math book (no - not teaching, reading) to students that they must watch on their own time before they can do their math homework. Then they must submit their homework by entering their answers on a non-math based program (no math symbols or way to get many concepts across easily) that simply adds extra time after the work is done. Other classes use other formats for submitting work (one system actually is quick and easy). Google forms requires kids to cut and paste each individual answer off a google document - imagine doing that 18 or 20 times when they have already spent all that time doing the work in a document that can be shared! Then, they can learn their social studies and science from multiple 2 minute video clips and text books that are read to them (so they sit in class with headphones). The problem is that the lessons are not really grade appropriate because they are used by multiple grades. Expectations for the answers may be different by grade, but who is helping them process information over their heads and bring it down to their level? Parents, maybe. A few teachers are terribly unclear in their expectations and kids are all over the place trying to keep up with all the different websites and calendars and LMS and such. You know what you have to do to stay on top of to pay your bills, watch your accounts, etc, etc? Imagine putting that on an 11 year old!!! But lots of technology. Not personalized education at all, however. They teach one way for all the students. They don't even let them go at their own pace...unless you count that one kid can get through a video in 15 minutes and the other takes 20 (much like watching Sesame Street on the DVR). But once they finish the lesson, it's not like they can move ahead to the next. They do next to nothing to attempt to cater to individual needs. So here is hoping you have an auditory learner! And don't expect them to teach your kid how to take notes. They are way out of sync with the local high schools in terms of technology and learning approaches. Sadly disappointed with the school as a whole. Lots of parents (certainly not all) and kids are very frustrated, but the school doesn't want to hear it. The Spanish program leaves much to be desired....after 9 years of taking it once a week, you will be lucky if you are at the same level as a first quarter high school student. Also, as an elective, half the students have no choice but to take "A" (first semester high school level 1/one year middle school) in 6th grade and "B" (second semester high school level 1) in 7th grade - with nothing available in 8th grade...so moving into Spanish 2 in high school becomes a big challenge after taking a year off...not a good set up at all and for sure the other schools don't set kids up this way. Also, in general, the middle school electives are slim pickings. There are a bunch of other things to comment on, but this is already long. Close Quote





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Frequently Asked Questions about Challenge to Excellence Charter School

Students at Challenge to Excellence Charter School are 60% Asian, 25% White, 8% Hispanic, 3% Two or more races, 3% African American.

Yes! Challenge to Excellence Charter School is one of the best elementary schools in the state. It ranks 30th of 946 Colorado elementary schools.

In the 2024-25 school year, 551 students attended Challenge to Excellence Charter School.

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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.

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