Deprecated: Return type of Phpfastcache\Util\ArrayObject::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/devzheng/workspace/psr/vendor/phpfastcache/phpfastcache/lib/Phpfastcache/Util/ArrayObject.php on line 106 Deprecated: Return type of Phpfastcache\Util\ArrayObject::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/devzheng/workspace/psr/vendor/phpfastcache/phpfastcache/lib/Phpfastcache/Util/ArrayObject.php on line 115 Deprecated: Return type of Phpfastcache\Util\ArrayObject::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/devzheng/workspace/psr/vendor/phpfastcache/phpfastcache/lib/Phpfastcache/Util/ArrayObject.php on line 130 Deprecated: Return type of Phpfastcache\Util\ArrayObject::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/devzheng/workspace/psr/vendor/phpfastcache/phpfastcache/lib/Phpfastcache/Util/ArrayObject.php on line 48 Deprecated: Return type of Phpfastcache\Util\ArrayObject::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/devzheng/workspace/psr/vendor/phpfastcache/phpfastcache/lib/Phpfastcache/Util/ArrayObject.php on line 56 Deprecated: Return type of Phpfastcache\Util\ArrayObject::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/devzheng/workspace/psr/vendor/phpfastcache/phpfastcache/lib/Phpfastcache/Util/ArrayObject.php on line 80 Deprecated: Return type of Phpfastcache\Drivers\Memcached\Item::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/devzheng/workspace/psr/vendor/phpfastcache/phpfastcache/lib/Phpfastcache/Core/Item/ItemExtendedTrait.php on line 438 Best Public Charter Schools in Katy, TX (2026)
Public School Review - Established 2003

Best Katy Public Charter Schools (2026)

For the 2026 school year, there are 9 public charter schools serving 4,727 students in Katy, TX. The top-ranked public charter schools in Katy, TX are Calvin Nelms High School, Calvin Nelms Middle School and Harmony Science Academy-katy. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Katy, TX public charter schools have an average math proficiency score of 53% (versus the Texas public charter school average of 38%), and reading proficiency score of 64% (versus the 49% statewide average). Charter schools in Katy have an average ranking of 9/10, which is in the top 20% of Texas public charter schools.
Minority enrollment is 76% of the student body (majority Hispanic), which is less than the Texas public charter school average of 88% (majority Hispanic).

Best Public Charter Schools in Katy, TX (2026)

School
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Calvin Nelms High School
Charter School
(Math: 70-79% | Reading: 70-79%)
Rank:
10/
10
Top 10%
20625 Clay Rd
Katy, TX 77449
(281) 398-8031
Gr: 9-12 | 183 students Student-teacher ratio: 18:1 Minority enrollment: 84%
Rank: #22.
Calvin Nelms Middle School
Charter School
(Math: 70-74% | Reading: 70-74%)
Rank:
10/
10
Top 10%
20625 Clay Rd
Katy, TX 77449
(281) 398-8031
Gr: 6-8 | 160 students Student-teacher ratio: 20:1 Minority enrollment: 88%
Rank: #33.
Harmony Science Academy-katy
Charter School
(Math: 70% | Reading: 74%)
Rank:
10/
10
Top 10%
22400 Grand Corner Dr
Katy, TX 77494
(832) 437-3926
Gr: PK-7 | 1,347 students Student-teacher ratio: 17:1 Minority enrollment: 83%
Rank: #44.
Aristoi Classical Upper School
Charter School
(Math: 54% | Reading: 79%)
Rank:
9/
10
Top 20%
5610 Morton Rd
Katy, TX 77493
(281) 391-5003
Gr: 5-12 | 664 students Student-teacher ratio: 14:1 Minority enrollment: 52%
Rank: #55.
Aristoi Classical Academy
Charter School
(Math: 55-59% | Reading: 65-69%)
Rank:
9/
10
Top 20%
5618 11th St
Katy, TX 77493
(281) 391-5003
Gr: K-4 | 431 students Student-teacher ratio: 17:1 Minority enrollment: 53%
Rank: #66.
Aristoi Classical Academy-cypress
Charter School
(Math: 35-39% | Reading: 55-59%)
Rank:
6/
10
Top 50%
12332 Perry Rd
Katy, TX 77493
(281) 391-5003
Gr: K-9 | 511 students Student-teacher ratio: 15:1 Minority enrollment: 54%
Rank: #77.
Iltexas Katy Middle School
Charter School
(Math: 42% | Reading: 50%)
Rank:
6/
10
Top 50%
24406 Franz Rd
Katy, TX 77493
(281) 394-9417
Gr: 6-8 | 459 students Student-teacher ratio: 18:1 Minority enrollment: 94%
Rank: #88.
Iltexas Katy Elementary School
Charter School
(Math: 33% | Reading: 57%)
Rank:
6/
10
Top 50%
24406 Franz Rd
Katy, TX 77493
(281) 394-9417
Gr: K-5 | 936 students Student-teacher ratio: 17:1 Minority enrollment: 93%
Rank: #99.
Leadership Academy
Alternative School
Charter School
(Math: ≤10% | Reading: ≤10%)
Rank:
1/
10
Bottom 50%
9120 Katy Hockley Rd
Katy, TX 77493
(713) 222-4629
Gr: 8-11 | 36 students Student-teacher ratio: 6:1 Minority enrollment: 94%

Frequently Asked Questions

What are the top-ranked public charter schools in Katy, TX?
How many public charter schools are located in Katy?
9 public charter schools are located in Katy.
What is the racial composition of students in Katy?
Katy public charter schools minority enrollment is 76% of the student body (majority Hispanic), which is less than the Texas public charter schools average of 88% (majority Hispanic).

Recent Articles

AI Report Cards: Should Schools Evaluate AI Use?
AI Report Cards: Should Schools Evaluate AI Use?
Explore whether schools should assess student AI use, the benefits, risks, and what responsible AI report cards could look like in 2026.
The Parent’s Guide to School Cell Phone Bans in 2026
The Parent’s Guide to School Cell Phone Bans in 2026
Learn how school cell phone bans work in 2026, why districts are adopting them, and what parents should expect.
Parental Involvement in Public Schools: 2026 Update
Parental Involvement in Public Schools: 2026 Update
Explore the latest 2026 trends, research, and strategies shaping parental involvement in public schools and student success.

Quick Links

School Search Tools:
School by Type (TX):
Private & Boarding Schools:
State Links: