School District · Illinois
Community Unit School District 300
📍 Algonquin, IL · McHenry County · NCES LEAID 1708550
District Contact & InformationSource: NCES CCD 2024–25
📚
Grades Served
Pre-K – 12th
📍
District Mailing Address
2550 Harnish Dr, Algonquin, IL 60102
🎓
Enrollment
20,443 students
🌐
NCES District ID (LEAID)
1708550
🏛
District Type
Public School District
Zip Codes Served by Community Unit School District 3005 zip codes
Frequently Asked Questions
What zip codes are in Community Unit School District 300?▼
Community Unit School District 300 serves 5 zip codes: 60102, 60110, 60118, 60136, 60140. Zip codes and district boundaries do not line up exactly, so confirm your exact address with the district office before you rely on an assignment.
How is Community Unit School District 300 rated?▼
Community Unit School District 300 has an overall rating of 5 out of 10 (Average), based on the share of students proficient in reading and math on state assessments (NCES EDFacts). That places it in the 47th percentile among Illinois school districts. Ratings are percentile-ranked within Illinois only and are not comparable across states.
How many students attend Community Unit School District 300?▼
The NCES Common Core of Data directory reports enrollment of 20,443 students across 29 schools for Community Unit School District 300.
What grades does Community Unit School District 300 serve?▼
Community Unit School District 300 is listed in the NCES directory as serving grades Pre-K – 12th.
How do I contact Community Unit School District 300?▼
You can reach Community Unit School District 300 by phone at (847)551-8300 or by mail at 2550 Harnish Dr, Algonquin, IL 60102. Contact details come from the NCES district directory and are the best way to confirm which school your address is assigned to.
About Community Unit School District 300
Community Unit School District 300 is a public school district serving 5 zip codes in Illinois, primarily in McHenry County. It carries an overall rating of 5/10 (Average), the 47th percentile among Illinois districts. That rating reflects the share of students proficient in reading and math on state assessments (NCES EDFacts, 2021–22 for most districts with a 2017–18 fallback for the rest) and is ranked only against other Illinois districts — scores are not comparable between states. Directory details on this page come from the NCES Common Core of Data, 2024–25.
District boundaries are address-specific and do not follow zip code lines exactly — a single zip code can
be split between two or more districts. Use the zip codes listed above as a starting point, then confirm your
assignment with the district office at (847)551-8300 before making a housing decision.