#1 Fastest-Growing Private Schools in Harris County, TX
Frassati Catholic High School
Diocesan school · Grades 9–12
Enrollment up 598% in about a decade
Spring, TX
A-Overall grade321 students13 students per teacher
2026 lists
Fastest-Growing Private Schools in Harris County, TX
Private schools in Harris County, TX whose enrollment has grown the most over the past decade. Top 48 of 48 schools.
#2 Fastest-Growing Private Schools in Harris County, TX
Our Lady of Fatima Catholic School-GP
Parish school · Grades K–8
Enrollment up 225% in about a decade
Galena Park, TX
BOverall grade156 students12 students per teacher
#3 Fastest-Growing Private Schools in Harris County, TX
Ilm Academy
Islamic · Montessori · Grades Pre-K–8
Enrollment up 223% in about a decade
Houston, TX
AOverall grade155 students6 students per teacher
#4 Fastest-Growing Private Schools in Harris County, TX
Yeshiva Torat Emet
Jewish day school · Grades Pre-K–8
Enrollment up 172% in about a decade
Houston, TX
B-Overall grade316 students11 students per teacher
#5 Fastest-Growing Private Schools in Harris County, TX
St. Rose of Lima Catholic School
Diocesan school · Grades Pre-K–8
Enrollment up 149% in about a decade
Houston, TX
AOverall grade353 students11 students per teacher
#6 Fastest-Growing Private Schools in Harris County, TX
Cunae International School
Independent school · Grades Pre-K–12
Enrollment up 123% in about a decade
The Woodlands, TX
AOverall grade87 students7 students per teacher
#7 Fastest-Growing Private Schools in Harris County, TX
Kardia Christian Academy
Presbyterian school · Grades K–7
Enrollment up 118% in about a decade
Houston, TX
A-Overall grade131 students9 students per teacher
#8 Fastest-Growing Private Schools in Harris County, TX
The Gateway Academy
Special education school · Grades 6–12
Enrollment up 105% in about a decade
Houston, TX
AOverall grade76 students3 students per teacher
#9 Fastest-Growing Private Schools in Harris County, TX
Houston Adventist Acadmey
Seventh-day Adventist school · Grades Pre-K–12
Enrollment up 96% in about a decade
Cypress, TX
BOverall grade206 students13 students per teacher
#10 Fastest-Growing Private Schools in Harris County, TX
The Banff School
Independent school · Grades Pre-K–12
Enrollment up 90% in about a decade
Houston, TX
A+Overall grade169 students8 students per teacher
#11 Fastest-Growing Private Schools in Harris County, TX
Pines Montessori School
Montessori school · Grades Pre-K–8
Enrollment up 82% in about a decade
Kingwood, TX
A+Overall grade122 students6 students per teacher
#12 Fastest-Growing Private Schools in Harris County, TX
British International School of Houston
Independent school · Grades Pre-K–12
Enrollment up 81% in about a decade
Katy, TX
A-Overall grade939 students10 students per teacher
#13 Fastest-Growing Private Schools in Harris County, TX
Life Lutheran School
Lutheran school · Grades Pre-K–8
Enrollment up 79% in about a decade
Friendswood, TX
A-Overall grade61 students10 students per teacher
#14 Fastest-Growing Private Schools in Harris County, TX
Cristo Rey Jesuit College Prep School of Houston
Independent Catholic school · Grades 9–12
Enrollment up 75% in about a decade
Houston, TX
A+Overall grade472 students12 students per teacher
#15 Fastest-Growing Private Schools in Harris County, TX
Smaller Scholars Montessori
Montessori school · Grades Pre-K–6
Enrollment up 74% in about a decade
Houston, TX
A+Overall grade232 students5 students per teacher
#16 Fastest-Growing Private Schools in Harris County, TX
Houston Quran Academy
Islamic school · Grades K–12
Enrollment up 72% in about a decade
Houston, TX
AOverall grade326 students10 students per teacher
#17 Fastest-Growing Private Schools in Harris County, TX
Westside Montessori School
Montessori school · Grades Pre-K–8
Enrollment up 59% in about a decade
Houston, TX
A+Overall grade94 students7 students per teacher
#18 Fastest-Growing Private Schools in Harris County, TX
Holy Ghost Catholic School
Parish school · Grades Pre-K–8
Enrollment up 55% in about a decade
Houston, TX
B-Overall grade153 students13 students per teacher
#19 Fastest-Growing Private Schools in Harris County, TX
Strake Jesuit College Prep School
Independent Catholic school · Grades 9–12
Enrollment up 54% in about a decade
Houston, TX
A+Overall gradeAll boys1,390 students10 students per teacher
#20 Fastest-Growing Private Schools in Harris County, TX
The Village School
Independent school · Grades K–12
Enrollment up 52% in about a decade
Houston, TX
A+Overall grade1,548 students6 students per teacher
#21 Fastest-Growing Private Schools in Harris County, TX
Memorial Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–12
Enrollment up 52% in about a decade
Houston, TX
A+Overall grade170 students9 students per teacher
#22 Fastest-Growing Private Schools in Harris County, TX
Cypress Christian School
Christian school (nondenominational) · Grades K–12
Enrollment up 45% in about a decade
Houston, TX
BOverall grade830 students12 students per teacher
#23 Fastest-Growing Private Schools in Harris County, TX
Our Savior Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
Enrollment up 43% in about a decade
Houston, TX
B-Overall grade264 students14 students per teacher
#24 Fastest-Growing Private Schools in Harris County, TX
The Joy School
Special education school · Grades K–8
Enrollment up 41% in about a decade
Houston, TX
A+Overall grade159 students4 students per teacher
From official public records, updated October 2026.