Guilford High School

Rockford SD 205

Rockford, Illinois

2,071 students

High School, Grades 9–12

(815)654-4870 School Website

2,071

Students

20.4:1

S:T Ratio

School Snapshot

Key metrics at a glance

Avg SAT Score

1,130

B+

out of 1600

Good

Avg ACT Score

A-

out of 36

Good

AP Courses

B+

courses offered

Good

AP Enrollment

22%

of students

Good

Student-Teacher Ratio

20:1

B-

students per teacher

Average

This Week at Guilford – October 15, 2026

281 students practicing on Varsity Tutors

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Academic Grades

Select a grade level to explore courses and resources

Academic Resources

Typical courses and practice resources for students at Guilford High School

Biology

Cell biology, genetics, evolution, and ecology

AP Biology

College-level biology with lab component

Chemistry

Atomic structure, reactions, and stoichiometry

AP Chemistry

College-level chemistry with lab component

Physics

Mechanics, waves, electricity, and magnetism

AP Physics 1

Algebra-based mechanics and waves

Environmental Science

Ecosystems, human impact, and sustainability

AP Environmental Science

College-level environmental science

World History

Global civilizations from ancient to modern times

AP World History

College-level world history analysis

U.S. History

American history from colonization to present

AP U.S. History

College-level American history

Standardized Test Dates

Upcoming national, state, and school calendar dates that affect students at Guilford High School.

National Tests

August 1, 2026 – November 30, 2026

ISEE — Fall Testing Season

Testing window

August 3, 2026 – June 30, 2027

SSAT — Flex Testing

Testing window

October 1, 2026 – October 30, 2026

PSAT 8/9 — Fall

Testing window

October 1, 2026 – October 30, 2026

PSAT/NMSQT — Fall

Testing window

October 1, 2026 – October 30, 2026

SAT — School Day - Fall

Testing window

October 16, 2026

SAT — National

Score release

+58 more national tests this school year

See the full national test & school calendar

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School Details

Address

5620 Spring Creek Rd, Rockford, IL 61114

Phone

(815)654-4870

Website

Visit Website

District

Rockford SD 205

Teachers & Staff

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Other Schools in District

Abraham Lincoln Middle School

Auburn High School

Jefferson High School

Arthur Froberg Elementary School

Beyer Early Childhood Center

Brookview Elementary School