County directory · Missouri · 2026–27

School districts in St. Louis County, MO

St. Louis County has 23 regular public school districts, enrolling 134,235 students in 2024–25. The largest is Rockwood R-Vi (19,597 students, 15% of the county), followed by Parkway C-2 and Hazelwood. All 23 offer kindergarten. Missouri's kindergarten cutoff: turn 5 by August 1.

The 23 districts, largest first

School districts in St. Louis County, MO by 2024–25 enrollment
District and officeGradesSchoolsStudentsKindergartenDistrict office contact
Rockwood R-Vi
111 E NORTH ST, EUREKA
also serves Jefferson County
Pre-K–123119,5971,141
(636) 733-2000
Parkway C-2
455 N WOODS MILL RD, CHESTERFIELD
Pre-K–122916,7591,113
(314) 415-8100
Hazelwood
15955 NEW HALLS FERRY RD, FLORISSANT
Pre-K–123216,3211,115
(314) 953-5005
Mehlville R-Ix
2900 LEMAY FERRY RD, ST LOUIS
Pre-K–121810,018658
(314) 467-5000
Ferguson-Florissant R-II
8855 Dunn Rd, Hazelwood
Pre-K–12228,809636
(314) 687-1912
Lindbergh Schools
9350 Sappington Road, St. Louis
Pre-K–12107,602491
(314) 729-2480
Ritenour
2420 WOODSON RD, ST LOUIS
Pre-K–12106,579484
(314) 493-6010
Pattonville R-III
11097 ST CHARLES ROCK RD, ST ANN
Pre-K–12116,201445
(314) 213-8500
Kirkwood R-Vii
1099 MILWAUKEE STREET, KIRKWOOD
Pre-K–1295,982351
(314) 213-6101
Riverview Gardens
1370 NORTHUMBERLAND, ST LOUIS
Pre-K–12135,116415
(314) 869-2505
Ladue
9703 CONWAY RD, ST LOUIS
Pre-K–1284,624272
(314) 994-7080
Webster Groves
400 E LOCKWOOD AVE, WEBSTER GROVES
Pre-K–1294,312276
(314) 961-1233
Specl. Sch. Dst. St. Louis Co.
12110 CLAYTON RD, TOWN & COUNTRY
Pre-K–12103,57688
(314) 989-8100
University City
7700 OLIVE BLVD, UNIVERSITY CITY
Pre-K–1272,853199
(314) 290-4001
Affton 101
8701 MACKENZIE RD, ST LOUIS
Pre-K–1242,619173
(314) 638-8770
Normandy Schools Collaborative
3855 Lucas and Hunt, SAINT LOUIS
Pre-K–1272,44085
(314) 493-0402
Clayton
#2 MARK TWAIN CIRCLE, CLAYTON
Pre-K–1262,367130
(314) 854-6000
Jennings
2559 DORWOOD, JENNINGS
Pre-K–1272,269180
(314) 653-8000
Bayless
4530 WEBER ROAD, ST LOUIS
Pre-K–1231,805118
(314) 256-8600
Maplewood-Richmond Heights
2531 S. Big Bend Blvd., MAPLEWOOD
Pre-K–1241,52397
(314) 644-4400
Hancock Place
9417 S BROADWAY, ST LOUIS
Pre-K–1231,28286
(314) 544-1300
Brentwood
2221 HIGH SCHOOL DRIVE, BRENTWOOD
Pre-K–12584783
(314) 962-4507
Valley Park
1 MAIN ST, VALLEY PARK
Pre-K–12373444
(636) 923-3500

St. Louis County at a glance

Together the 23 districts run 261 schools from offices in 17 towns. The smallest by enrollment is Valley Park, with 734 students; the median St. Louis County district has 4,312. By grade span: 23 Pre-K–12.

Kindergarten in 2024–25, counting the 23 districts that report a K grade: 8,680 children. The biggest kindergarten was Rockwood R-Vi's, with 1,141; Hazelwood had 1,115, and the smallest, Valley Park, had 44.

St. Louis County holds 23 of Missouri's 518 regular districts (4.4%) and 16% of its 861,692 public school students, ranking 1st of 115 counties by number of districts and 1st by enrollment. By size, 10 enroll 5,000 or more, 11 enroll 1,000 to 4,999 and 2 have fewer than 1,000 students, and the average school here has about 514 students.

One district reaches past the county line: Rockwood R-Vi (into Jefferson County).

Which district am I in?

Each district draws its own attendance zones, so your home address decides it, and with 1 of St. Louis County's districts crossing county lines the county alone won't. There is no address lookup here; ask the district. Each one's own site:

Rockwood R-Vi · Parkway C-2 · Hazelwood · Mehlville R-Ix · Ferguson-Florissant R-II · Lindbergh Schools · Ritenour · Pattonville R-III · Kirkwood R-Vii · Riverview Gardens · Ladue · Webster Groves · Specl. Sch. Dst. St. Louis Co. · University City · Affton 101 · Normandy Schools Collaborative · Clayton · Jennings · Bayless · Maplewood-Richmond Heights · Hancock Place · Brentwood · Valley Park

What grade will my child be in?

↓ Tap Calculate to see the grade
Most US states use a September 1 cutoff. Year-stamped for the 2026–27 school year.

More in Missouri

Every Missouri district by county · Missouri kindergarten cutoff

More Missouri county directories: Jackson County (12)

Sources

District list, grades, school counts and websites: NCES Common Core of Data (CCD) LEA Universe Directory, SY 2025-26 (preliminary, v0a), published July 1, 2026. Regular public districts only (NCES LEA types 1 and 2); charter-only, state-run and regional service agencies are not listed.
Enrollment: NCES CCD LEA Membership, SY 2024-25 (v1a), published December 29, 2025 — the newest year NCES has released.
Counties: NCES EDGE Public LEA Geocodes, SY 2024-25 (district office location) and NCES EDGE Geographic Relationship Files 2025 (grf25_lea_county) (counties each district boundary covers).
Downloaded October 20, 2026. Spot something off? Email [email protected].