My colleges

What College of Southern Idaho costs

Twin Falls, Idaho · Public · 3,810 undergrads

College of Southern Idaho's in-state sticker price was $19,290 a year in 2024-25 (College Scorecard). In-state students with federal aid paid $9,371 on average after grants; families earning under $30,000 paid $8,881. Out-of-state students pay $3,480 more in tuition.

What does College of Southern Idaho cost?

$9,371 a year in-state

Out of state: about $12,851 a year

What in-state students who got federal aid paid on average after grants, 2024-25. The in-state sticker price, with housing and food, is $19,290.

Tap your family income:

Average paid after grants by family income
under $30,000$8,881
$30,000–$48,000$6,922
$48,000–$75,000$8,711
$75,000–$110,000$11,420
over $110,000$16,053

Out-of-state tuition is $7,008 a year, against $3,528 in state. The out-of-state figure adds that $3,480 to the in-state average. Out-of-state students usually get less aid, so many pay more.

Own a business or have divorced parents? Run College of Southern Idaho's own calculator.

Net price 2024-25, College Scorecard.

By family income

In-state families who got federal aid, average paid per year after grants, 2024-25.

Family incomeIn-state, average paidOut of state, estimate
Under $30,000$8,881$12,361
$30,000–$48,000$6,922$10,402
$48,000–$75,000$8,711$12,191
$75,000–$110,000$11,420$14,900
Over $110,000$16,053$19,533

The out-of-state estimate is the in-state average plus the $3,480 more in tuition that College of Southern Idaho charges students from other states. Out-of-state students usually get less aid, so many pay more.

Run College of Southern Idaho's own calculator

For in-state families earning under $30,000, grants took 54% off College of Southern Idaho's sticker price.

Business owner, divorced parents, or savings? The averages can't see that; College of Southern Idaho's own calculator can.

Got an aid offer? See how to compare aid offers and ask for more.

Compared with colleges people also look at

For families earning $48,000–75,000, College of Southern Idaho cost less than Lewis-Clark State College but more than Idaho State University and Aims Community College.

CollegeFamilies earning $48–75kAll aided students
College of Southern Idaho$8,711$9,371
Idaho State University$6,116$8,910
Lewis-Clark State College$11,762$13,632
Aims Community College$2,486$2,470

Public colleges: in-state students.

The sticker price

$3,528
Tuition, in state, 2025-26
$7,008
Tuition, out of state, 2025-26
$19,290
Full sticker price, tuition, housing, food, books

Out-of-state students pay $3,480 more in tuition at College of Southern Idaho and usually get less aid.

17%
of undergrads get a Pell Grant, the federal grant for lower-income students.
$6,721
average grant for students who got aid.
2.4%
of undergrads take a federal loan.
$7,278
median federal debt at graduation.

Questions people ask

How much does College of Southern Idaho cost for a family earning $25,000?
In-state families earning under $30,000 paid $8,881 a year on average after grants in 2024-25 (students who got federal aid). The sticker price is $19,290. Your own price depends on your family's finances; College of Southern Idaho's net price calculator gives a personal estimate.
How much does College of Southern Idaho cost for a family earning $40,000?
In-state families earning $30,000–$48,000 paid $6,922 a year on average after grants in 2024-25 (students who got federal aid). The sticker price is $19,290. Your own price depends on your family's finances; College of Southern Idaho's net price calculator gives a personal estimate.
How much does College of Southern Idaho cost for a family earning $60,000?
In-state families earning $48,000–$75,000 paid $8,711 a year on average after grants in 2024-25 (students who got federal aid). The sticker price is $19,290. Your own price depends on your family's finances; College of Southern Idaho's net price calculator gives a personal estimate.
How much does College of Southern Idaho cost for out-of-state students?
Out-of-state tuition at College of Southern Idaho is $7,008 a year, against $3,528 for in-state students in 2025-26. In-state students who got federal aid paid $9,371 on average after grants in 2024-25. Adding the $3,480 tuition gap gives about $12,851 a year from out of state. Out-of-state students usually get less aid, so many pay more.
Where these numbers come from

Updated Oct 31, 2026Spot a mistake?How we get our numbers