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 Williamson County (2026)
Public School Review - Established 2003

Best Williamson County Public Charter Schools (2026)

For the 2026 school year, there are 12 public charter schools serving 7,369 students in Williamson County, TX.
The top-ranked public charter schools in Williamson County, TX are Meridian World School Llc, Gateway College Preparatory School and Harmony School Of Endeavor Austin. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Williamson County, TX public charter schools have an average math proficiency score of 59% (versus the Texas public charter school average of 38%), and reading proficiency score of 74% (versus the 49% statewide average). Charter schools in Williamson County have an average ranking of 10/10, which is in the top 5% of Texas public charter schools.
Minority enrollment is 71% of the student body (majority Asian and Hispanic), which is less than the Texas public charter school average of 88% (majority Hispanic).

Best Public Charter Schools in Williamson County (2026)

School
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Meridian World School Llc
Charter School
(Math: 69% | Reading: 79%)
Rank:
10/
10
Top 10%
2555 N Ih-35
Round Rock, TX 78664
(512) 660-5230
Gr: K-12 | 1,745 students Student-teacher ratio: 18:1 Minority enrollment: 76%
Rank: #22.
Gateway College Preparatory School
Charter School
(Math: 60% | Reading: 80%)
Rank:
10/
10
Top 10%
3360 Westinghouse Rd
Georgetown, TX 78626
(512) 868-4947
Gr: K-12 | 1,681 students Student-teacher ratio: 18:1 Minority enrollment: 56%
Rank: #33.
Harmony School Of Endeavor Austin
Charter School
(Math: 66% | Reading: 71%)
Rank:
9/
10
Top 20%
13415 Fm 620 N
Austin, TX 78717
(512) 284-9880
Gr: PK-12 | 1,000 students Student-teacher ratio: 18:1 Minority enrollment: 70%
Rank: #44.
Idea Round Rock Tech College Preparatory
Charter School
(Math: 56% | Reading: 70-74%)
Rank:
9/
10
Top 20%
3301 Greenlawn Blvd
Round Rock, TX 78664
(512) 297-3974
Gr: 6-10 | 504 students Student-teacher ratio: 15:1 Minority enrollment: 88%
Rank: #55.
Idea Round Rock Tech Academy
Charter School
(Math: 46% | Reading: 55-59%)
Rank:
7/
10
Top 50%
3301 Greenlawn Blvd
Round Rock, TX 78664
(512) 822-4750
Gr: K-5 | 718 students Student-teacher ratio: 21:1 Minority enrollment: 86%
Rank: #66.
Gateway Tech High School
Alternative School
Charter School
(Math: 21-39% | Reading: 40-59%)
Rank:
4/
10
Bottom 50%
2951 Williams Dr
Georgetown, TX 78628
(512) 868-5299
Gr: 9-12 | 49 students Student-teacher ratio: 49:1 Minority enrollment: 55%
Rank: #77.
Goodwater Montessori School
Charter School
(Math: 25-29% | Reading: 45-49%)
Rank:
4/
10
Bottom 50%
710 Stadium Dr
Georgetown, TX 78626
(512) 966-5484
Gr: PK-5 | 323 students Student-teacher ratio: 20:1 Minority enrollment: 64%
Rank: #88.
Ki Charter Academy Liberty Hill
Charter School
(Math: ≤10% | Reading: 20-29%)
Rank:
1/
10
Bottom 50%
12550 Hwy 29
Liberty Hill, TX 78642
(512) 528-2100
Gr: 5-12 | 125 students Student-teacher ratio: 10:1 Minority enrollment: 46%
Rank: n/an/a
Basis Cedar Park
Charter School
165 N Lakeline Blvd
Cedar Park, TX 78613
(210) 981-1071
Gr: 6-10 | 405 students Student-teacher ratio: 16:1 Minority enrollment: 97%
Rank: n/an/a
Basis Cedar Park Primary
Charter School
165 N Lakeline Blvd
Cedar Park, TX 78613
(210) 981-1071
Gr: K-5 | 859 students Student-teacher ratio: 17:1 Minority enrollment: 96%
Rank: n/an/a
Harmony Science Academy - Georgetown
Charter School
201 Blue Ridge Dr
Georgetown, TX 78626
(512) 386-1903
Rank: n/an/a
Valor Leander
Charter School
906 Crystal Falls Pkwy
Leander, TX 78641
(512) 729-0159
Gr: K-9 | 380 students Student-teacher ratio: 17:1 Minority enrollment: 46%

Frequently Asked Questions

What are the top-ranked public charter schools in Williamson County, TX?
The top-ranked public charter schools in Williamson County, TX include Meridian World School Llc, Gateway College Preparatory School and Harmony School Of Endeavor Austin.
How many public charter schools are located in Williamson County?
12 public charter schools are located in Williamson County.
What is the racial composition of students in Williamson County?
Williamson County public charter schools minority enrollment is 71% of the student body (majority Asian and Hispanic), which is less than the Texas public charter schools average of 88% (majority Hispanic).
Which public charter schools in Williamson County are often viewed compared to one another?

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:

Most Popular Articles

School Rankings by Category
School Rankings by Category
 Cell Phones in Class? Many Schools are Saying Yes
Cell Phones in Class? Many Schools are Saying Yes
The Impact of Social Media on Students – 2025 Updated Insights
The Impact of Social Media on Students – 2025 Updated Insights
 10 Major Challenges Facing Public Schools
10 Major Challenges Facing Public Schools
 What are the Benefits of Public School Over Homeschooling?
What are the Benefits of Public School Over Homeschooling?

More Articles

Teaching
Public School Jobs
Local School Topics
Parenting and Learning Issues
Scholarships