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College of Southern Idaho SAT Scores, ACT Scores, Acceptance Rate, and Admissions Requirements

SAT RangeN/A

ACT RangeN/A

Average GPAN/A

Acceptance RateN/A

Southern Idaho’s standout number is its 100% freshman retention rate, which suggests students who enroll are finding reasons to stay. Because it is test-optional and listed scholarships do not include SAT or ACT cutoffs, submit scores if they strengthen your profile, while keeping cost, fit, and program choice at the center.

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

College of Southern Idaho facts and stats

Quick Facts

College of Southern Idaho enrolls about 10,176 undergraduate students in an urban campus setting. Southern Idaho reports a 100% freshman retention rate, which is above the national average of roughly 70%. The student-to-faculty ratio is 25:1.

Location

Twin Falls, ID

Undergrad Enrollment10,176

Freshman Retention100%

SettingUrban

Student to Faculty Ratio25:1

Graduation RateN/A

Test PolicyTest-optional

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Key College of Southern Idaho application dates

Key dates

Application deadlines

Regular Decision

August 15

Early Action

Not offered

Early Decision

Not offered

Priority Deadline

—

Financial aid deadlines

Financial Aid Priority

March 1

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 SAT or ACT scores to test-optional Southern Idaho, take your first test by the spring of junior year, then use the summer before senior year for a retake if a higher score or superscore would help. Because Southern Idaho’s Regular Decision deadline is August 15, fall senior retakes will not arrive in time for that application.

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What you'll actually pay

At Southern Idaho, in-state tuition is $5,700 and out-of-state tuition is $8,550. Submit the FAFSA by the March 1 priority deadline to be considered for financial aid.

In-State Tuition$5,700

Out-of-State Tuition$8,550

Room and Board$6,360

Average Merit AwardN/A

Application FeeN/A

Students on AidN/A

Average Aid PackageN/A

Average Debt at GradN/A

Southern Idaho’s out-of-state tuition is $8,550, compared with $5,700 for Idaho students. Room and board adds about $6,360, bringing billed costs to roughly $14,910 before books, fees, and personal expenses for out-of-state students. Actual costs can be lower depending on financial need, grants, scholarships, and other aid.