County directory · Arizona · 2026–27

School districts in Pinal County, AZ

Pinal County has 19 regular public school districts, enrolling 43,588 students in 2024–25. The largest is Maricopa Unified School District (4441) (9,568 students, 22% of the county), followed by Florence Unified School District (4437) and Casa Grande Elementary District (4446). 17 of the 19 offer kindergarten. Arizona's kindergarten cutoff: turn 5 by August 31.

The 19 districts, largest first

School districts in Pinal County, AZ by 2024–25 enrollment
District and officeGradesSchoolsStudentsKindergartenDistrict office contact
Maricopa Unified School District (4441)
44150 W MARICOPA CASA GRANDE H, MARICOPA
Pre-K–12139,568648
(520) 568-5100
Florence Unified School District (4437)
1000 S MAIN ST, FLORENCE
Pre-K–12168,731423
(520) 866-3500
Casa Grande Elementary District (4446)
220 W KORTSEN RD, CASA GRANDE
Pre-K–8146,630611
(520) 836-2111
Casa Grande Union High School District (4453)
2730 N TREKELL RD, CASA GRANDE
9–1233,938—
(520) 316-3360
J O Combs Unified School District (4445)
43371 N KENWORTHY RD, SAN TAN VLY
Pre-K–12103,934243
(480) 987-5300
Coolidge Unified District (4442)
450 N ARIZONA BLVD, COOLIDGE
Pre-K–1262,815146
(520) 723-2040
Apache Junction Unified District (4443)
801 W SOUTHERN AVE, Apache Junction
Pre-K–1262,440146
(480) 982-1110
Toltec School District (4450)
3315 N TOLTEC RD, ELOY
Pre-K–1231,270124
(520) 466-2360
Eloy Elementary District (4448)
1011 N SUNSHINE BLVD, ELOY
Pre-K–8369452
(520) 466-2100
Sacaton Elementary District (4449)
92 Skill Center Rd, Sacaton
Pre-K–8249535
(520) 562-8600
Mammoth-San Manuel Unified District (4439)
711 S MCNAB PKWY, SAN MANUEL
Pre-K–12347333
(520) 385-2336
Santa Cruz Valley Union High School District (4454)
900 N MAIN ST, ELOY
9–122425—
(520) 466-2220
Red Rock Elementary District (4447)
20854 East Homestead Drive, Red Rock
Pre-K–8142042
(520) 682-3331
Oracle Elementary District (4444)
2618 W EL PASEO, ORACLE
Pre-K–8141340
(520) 896-3071
Stanfield Elementary District (4451)
515 S STANFIELD RD, STANFIELD
Pre-K–8136533
(520) 424-0221
Ray Unified District (4438)
Hwy 177, Kearny
Pre-K–12331819
(520) 363-5515
Superior Unified School District (4440)
1500 W PANTHER DR STE 101, SUPERIOR
Pre-K–12230626
(520) 689-3000
Mary C O'Brien Accommodation District (4435)
3740 N TOLTEC RD, TOLTEC
K–12219820
(520) 450-4466
Picacho Elementary District (4452)
17865 S VAIL RD, PICACHO
Pre-K–8115516
(520) 466-7942

Pinal County at a glance

Together the 19 districts run 92 schools from offices in 16 towns. The smallest by enrollment is Picacho Elementary District (4452), with 155 students; the median Pinal County district has 495. By grade span: 9 Pre-K–12, 7 Pre-K–8, 2 9–12 and 1 K–12. Without kindergarten: Casa Grande Union High School District (4453) (9–12) and Santa Cruz Valley Union High School District (4454) (9–12).

Kindergarten in 2024–25, counting the 17 districts that report a K grade: 2,657 children. The biggest kindergarten was Maricopa Unified School District (4441)'s, with 648; Casa Grande Elementary District (4446) had 611, and the smallest, Picacho Elementary District (4452), had 16.

Pinal County holds 19 of Arizona's 223 regular districts (8.5%) and 5.0% of its 869,299 public school students, ranking 4th of 15 counties by number of districts and 3rd by enrollment. By size, 3 enroll 5,000 or more, 5 enroll 1,000 to 4,999 and 11 have fewer than 1,000 students, and the average school here has about 474 students.

Which district am I in?

Each district draws its own attendance zones, so your home address decides it. There is no address lookup here; ask the district. Each one's own site:

Maricopa Unified School District (4441) · Florence Unified School District (4437) · Casa Grande Elementary District (4446) · Casa Grande Union High School District (4453) · J O Combs Unified School District (4445) · Coolidge Unified District (4442) · Apache Junction Unified District (4443) · Toltec School District (4450) · Eloy Elementary District (4448) · Sacaton Elementary District (4449) · Mammoth-San Manuel Unified District (4439) · Santa Cruz Valley Union High School District (4454) · Red Rock Elementary District (4447) · Oracle Elementary District (4444) · Stanfield Elementary District (4451) · Ray Unified District (4438) · Superior Unified School District (4440) · Mary C O'Brien Accommodation District (4435) · Picacho Elementary District (4452)

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 Arizona

Every Arizona district by county · Arizona kindergarten cutoff

More Arizona county directories: Apache County (11) · Cochise County (22) · Maricopa County (56) · Mohave County (13) · Navajo County (12) · Pima County (17)

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].