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Southeastern Illinois College SAT Scores, ACT Scores, Acceptance Rate, and Admissions Requirements

SAT RangeN/A

ACT RangeN/A

Average GPAN/A

Acceptance Rate84.4%

Southeastern Illinois admits most applicants, so your strategy should be making sure you are prepared to succeed once you enroll, especially with a 66% freshman retention rate. Because the school is test-optional, submit SAT or ACT scores only if they clearly reinforce your grades and readiness for college-level coursework.

Data on this page is sourced from our college data partners and was last updated on July 9, 2026.

Southeastern Illinois College facts and stats

Quick Facts

Southeastern Illinois College is a rural institution with an undergraduate enrollment of 1,446. Southeastern Illinois has a freshman retention rate of 66%. The student-to-faculty ratio is 17:1.

Location

Harrisburg, IL

Undergrad Enrollment1,446

Freshman Retention66%

SettingRural

Student to Faculty Ratio17:1

Graduation RateN/A

Test PolicyTest-optional

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Key Southeastern Illinois College application dates

Key dates

Application deadlines

Regular Decision

September 1

Early Action

Not offered

Early Decision

Not offered

Priority Deadline

—

Financial aid deadlines

Coming soon

Test dates

SAT test dates

August 22, 2026

Registration deadline: August 7, 2026

September 12, 2026

Registration deadline: August 28, 2026

October 3, 2026

Registration deadline: September 18, 2026

ACT test dates

September 19, 2026

Registration deadline: August 14, 2026

October 17, 2026

Registration deadline: September 11, 2026

December 12, 2026

Registration deadline: November 6, 2026

Take tests early for the best outcomes

If you choose to submit scores to test-optional Southeastern Illinois, plan to take your first SAT or ACT by spring of junior year so you can use the summer before senior year for a superscore-focused retake. Because the Regular Decision deadline is September 1, fall retakes are unlikely to arrive in time for Southeastern Illinois, though you can still reserve fall for retakes at other test-using colleges.

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What you'll actually pay

Southeastern Illinois is a public college with in-state tuition of $5,280 and out-of-state tuition of $5,520. Use these figures as a starting point, then review grants, scholarships, and FAFSA-based aid that may reduce your net cost.

In-State Tuition$5,280

Out-of-State Tuition$5,520

Room and BoardN/A

Average Merit AwardN/A

Application FeeN/A

Students on AidN/A

Average Aid PackageN/A

Average Debt at GradN/A

At Southeastern Illinois College, students paying the out-of-state tuition rate are charged $5,520, while the in-state tuition rate is $5,280. Because this is tuition only, students should also budget for fees, books, transportation, and living expenses as applicable. Actual out-of-pocket cost will depend on financial need and any grants or scholarships a student receives.