C of the Siskiyous's tuition & fees has increased from $6,194 (2015) to $9,394 (2025), and the rate of tuition increase is 51.66% over the past 10 years.
C of the Siskiyous's tuition increase rate is higher than the California's average increase rate of 14.58%. Compare to all colleges in United States, it's increase rate is higher 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 29.12% from 2015 ($20,042).
For the current academic year 2024-2025, C of the Siskiyous's COA is $25,878, which is increased by 2.95% from last year.
The following table and chart show changes to C of the Siskiyous's COA over the past 10 years.
Tuition & Fees Changes
The tuition & fees have increased 51.66% for the last 10 years , and the 2025 tuition & fees are $9,330. The following table and chart show the tuition & fees changes at College of the Siskiyous over last the 10 years.
Books & Supplies Costs Changes
The cost of purchasing books & supplies which are required/recommended for courses $1,268, and it has decreased -27.38% from the year 2015 to 2025.
| Year | Books & Supplies | Change by Year |
| 2015-16 | $1,746 | - |
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| 2016-17 | $1,791 | 2.58% |
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| 2017-18 | $1,854 | 3.52% |
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| 2018-19 | $1,917 | 3.40% |
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| 2019-20 | $1,971 | 2.82% |
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| 2020-21 | $1,080 | -45.21% |
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| 2021-22 | $1,080 | |
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| 2022-23 | $1,080 | |
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| 2023-24 | $1,233 | 14.17% |
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| 2024-25 | $1,268 | 2.84% |
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Living Costs Changes
The living costs including room, board, and other living expenses have increased 3.62% when a student lives on-campus facilities and 22.43% when living-off campus from the year 2015 to 2025. The following table shows the changes in living costs at College of the Siskiyous.
| Year | Living On Campus | Living Off Campus | Change by Year |
| 2015-16 | $12,102 | $16,137 | - |
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| 2016-17 | $11,168 | $12,744 | -7.72% |
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| 2017-18 | $12,240 | $15,273 | 9.60% |
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| 2018-19 | $11,858 | $15,264 | -3.12% |
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| 2019-20 | $11,858 | $18,126 | |
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| 2020-21 | $11,533 | $15,806 | -2.74% |
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| 2021-22 | $11,989 | $16,443 | 3.95% |
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| 2022-23 | $11,743 | $18,324 | -2.05% |
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| 2023-24 | $14,509 | $23,122 | 23.55% |
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| 2024-25 | $15,216 | $24,363 | 4.87% |
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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 the Siskiyous and similar schools.
| 2025 | 2024 | Increase Rate |
| College of the Siskiyous | $9,394 ($1,444) | $9,394 ($1,444) | - |
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| American River College | $12,616 ($1,288) | $12,808 ($1,288) | -1.50% |
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| Mt San Antonio College | $10,464 ($1,364) | $10,212 ($1,364) | 2.47% |
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| Long Beach City College | $12,544 ($1,556) | $11,440 ($1,556) | 9.65% |
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| Pasadena City College | $10,924 ($1,180) | $10,756 ($1,180) | 1.56% |
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| Chaffey College | $11,120 ($1,184) | $11,120 ($1,184) | - |
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