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)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Meridian World School Llc
Charter School
(Math: 69% | Reading: 79%)
Rank:
Rank:
10/
Top 10%10
2555 N Ih-35
Round Rock, TX 78664
(512) 660-5230
Round Rock, TX 78664
(512) 660-5230
Gr: K-12 | 1,745 student Student-teacher ratio: 18:1 Minority enrollment: 76%
Rank: #22.
Gateway College Preparatory School
Charter School
(Math: 60% | Reading: 80%)
Rank:
Rank:
10/
Top 10%10
3360 Westinghouse Rd
Georgetown, TX 78626
(512) 868-4947
Georgetown, TX 78626
(512) 868-4947
Gr: K-12 | 1,681 student Student-teacher ratio: 18:1 Minority enrollment: 56%
Rank: #33.
Harmony School Of Endeavor Austin
Charter School
(Math: 66% | Reading: 71%)
Rank:
Rank:
9/
Top 20%10
13415 Fm 620 N
Austin, TX 78717
(512) 284-9880
Austin, TX 78717
(512) 284-9880
Gr: PK-12 | 1,000 student Student-teacher ratio: 18:1 Minority enrollment: 70%
Rank: #44.
Idea Round Rock Tech College Preparatory
Charter School
(Math: 56% | Reading: 70-74%)
Rank:
Rank:
9/
Top 20%10
3301 Greenlawn Blvd
Round Rock, TX 78664
(512) 297-3974
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:
Rank:
7/
Top 50%10
3301 Greenlawn Blvd
Round Rock, TX 78664
(512) 822-4750
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
Charter School
(Math: 21-39% | Reading: 40-59%)
Rank:
Rank:
4/
Bottom 50%10
2951 Williams Dr
Georgetown, TX 78628
(512) 868-5299
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:
Rank:
4/
Bottom 50%10
710 Stadium Dr
Georgetown, TX 78626
(512) 966-5484
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:
Rank:
1/
Bottom 50%10
12550 Hwy 29
Liberty Hill, TX 78642
(512) 528-2100
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
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
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
Georgetown, TX 78626
(512) 386-1903
Rank: n/an/a
Valor Leander
Charter School
906 Crystal Falls Pkwy
Leander, TX 78641
(512) 729-0159
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?
Popular comparisons of public charter schools in Williamson County include: Idea Round Rock Tech College Preparatory vs. Idea Round Rock Tech Academy, Gateway College Preparatory School vs. Meridian World School Llc, Meridian World School Llc vs. Gateway College Preparatory School
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