Riverdale High School (Port Byron, Illinois)

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Riverdale High School is a public four-year high school in Port Byron, Illinois. It is part of Riverdale Community Unit School District 100, which also includes Riverdale Middle School and Riverdale Elementary School. The campus sits about 3 miles east of Port Byron and 13 miles northeast of East Moline, near the Quad Cities metropolitan area.

Quick facts
- Grades: 9–12
- Enrollment: about 308 students (2023–2024)
- Faculty: about 25 (full-time equivalent)
- Student–teacher ratio: around 12
- Colors: black and yellow
- Mascot: Rams
- Athletics: Three Rivers Conference; member of the Illinois High School Association (IHSA)

What students experience
Riverdale High School has a broad range of programs and activities. In recent years, about 80% of students participate in extracurricular activities, with many involved in more than one. The school is known for strong academics and athletics, including golf.

Academic and performance notes
- The school has been recognized for making progress and meeting state standards at times, though it faced challenges in some years.
- Graduation rate has been high, with about 99% graduates reported in recent years.
- In 2009, about half of students tested met or exceeded state standards on a state exam.
- The district has seen changes in enrollment over the years, with a notable decrease from the late 1990s into the 2000s.

Athletics and achievements
Riverdale High competes in the Three Rivers Conference. The Rams have earned state golf honors, including first place in 2017 and second place in 2018 and 2023.

History
Riverdale High School opened in 1955 after the consolidation of Cordova, Hillsdale, and Port Byron high schools to form Riverdale Unit School District 100.

Predecessor schools
- Cordova High School began in the late 19th century, with a notable building completed in the early 1920s. It closed in 1955 after consolidation.
- Hillsdale High School opened in 1921 and became part of Riverdale in 1955.
- Port Byron High School operated for years before joining the consolidation; its building served as Riverdale’s first high school site until a new campus was built in 1967. The Port Byron site later housed a business and has undergone changes since then.