C of Southern Idaho's tuition & fees has increased from $6,720 (2015) to $6,840 (2025), and the rate of tuition increase is 1.79% over the past 10 years.
The tuition & fees have not risen since 2020 at College of Southern Idaho.
C of Southern Idaho's tuition increase rate is lower than the Idaho's average increase rate of 16.02%. Compare to all colleges in United States, it's increase rate is lower than the average increase rate of 10.99%.
Cost of Attendance (COA) Trends
The total cost of attendance (COA), including tuition & fees, books & supplies costs, and living costs, increased by 18.28% from 2015 ($16,908).
For the current academic year 2024-2025, C of Southern Idaho's COA is $19,999, which is increased by 10.93% from last year.
The following table and chart show changes to C of Southern Idaho's COA over the past 10 years.
Tuition & Fees Changes
The tuition & fees have increased 1.79% for the last 10 years , and the 2025 tuition & fees are $6,840. The following table and chart show the tuition & fees changes at College of Southern Idaho over last the 10 years.
Books & Supplies Costs Changes
The cost of purchasing books & supplies which are required/recommended for courses $1,060, and it has increased 7.07% from the year 2015 to 2025.
| Year | Books & Supplies | Change by Year |
| 2015-16 | $990 | - |
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| 2016-17 | $990 | |
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| 2017-18 | $990 | |
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| 2018-19 | $990 | |
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| 2019-20 | $990 | |
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| 2020-21 | $990 | |
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| 2021-22 | $6,840 | 590.91% |
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| 2022-23 | $990 | -85.53% |
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| 2023-24 | $990 | |
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| 2024-25 | $1,060 | 7.07% |
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Living Costs Changes
The living costs including room, board, and other living expenses have increased 15.35% when a student lives on-campus facilities and 43.76% when living-off campus from the year 2015 to 2025. The following table shows the changes in living costs at College of Southern Idaho.
| Year | Living On Campus | Living Off Campus | Change by Year |
| 2015-16 | $9,198 | $9,470 | - |
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| 2016-17 | $9,268 | $9,470 | 0.76% |
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| 2017-18 | $9,348 | $9,470 | 0.86% |
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| 2018-19 | $9,748 | $9,470 | 4.28% |
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| 2019-20 | $9,748 | $9,470 | |
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| 2020-21 | $9,948 | $9,470 | 2.05% |
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| 2021-22 | $10,198 | $9,470 | 2.51% |
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| 2022-23 | $10,400 | $9,470 | 1.98% |
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| 2023-24 | $10,198 | $9,470 | -1.94% |
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| 2024-25 | $12,099 | $16,285 | 18.64% |
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Compare Tuition Change to Similar Colleges
The following table compares 2025 tuition and increase rate from last year between College of Southern Idaho and similar schools.
| 2025 | 2024 | Increase Rate |
| College of Southern Idaho | $6,840 ($4,560) | $6,840 ($4,560) | - |
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| Boise State University | $27,788 ($9,048) | $26,976 ($8,782) | 3.01% |
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| Idaho State University | $27,720 ($8,610) | $27,466 ($8,356) | 0.92% |
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| University of Idaho | $28,320 ($9,084) | $29,784 ($8,816) | -4.92% |
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| College of Western Idaho | $7,454 ($4,446) | $7,344 ($4,336) | 1.50% |
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| Lewis-Clark State College | $22,028 ($7,610) | $21,386 ($7,388) | 3.00% |
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