Tuition & net price

How much does California State University, San Marcos cost?

Published tuition is $8,082 in-state and $20,682 out-of-state, with a full cost of attendance of $21,649 a year. After aid, families pay between $6,230 and $18,734 depending on income.

In-state tuition$8,082before aid
Out-of-state$20,682before aid
Lowest net price$6,230families under $30k
Highest net price$18,734families over $110k

What families actually pay Average net price after grants and scholarships, by household income.

Household incomeNet price a yearShare of the sticker price
Under $30,000 $6,230 29%
$30,001–$48,000 $7,240 33%
$48,001–$75,000 $8,928 41%
$75,001–$110,000 $12,525 58%
Over $110,000 $18,734 87%

Net price is the federal measure of what students actually pay: total cost of attendance minus the grant and scholarship aid they receive. It is the only cost figure worth comparing between universities — the published tuition above is a list price that most students never pay in full.

Who pays how The mix of grant aid and borrowing at this university.

On Pell grants
43%
Take federal loans
28%
Typical repayment
$184/mo

A high Pell share means the university enrols many lower-income students, and usually that its net price for those families is well below the sticker price. A high loan share means the gap between aid and cost is being filled with borrowing — the repayment record shows how that works out afterwards.

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How the price compares Universities charging a similar amount in California.

UniversityIn-stateOut-of-stateCost of attendanceNet price (under $30k)
California State University, Bakersfield $8,090 $20,690 $19,522 $3,536
California State University, San Bernardino $8,093 $20,693 $17,427 $2,681
California State University, Sacramento $8,018 $20,618 $22,945 $6,501
San Francisco State University $7,950 $20,550 $26,488 $9,341
California State University, Stanislaus $8,246 $20,846 $19,739 $3,938
California State University, Monterey Bay $7,779 $20,379 $26,987 $9,970

California State University, San Marcos costs: common questions

How much is tuition at California State University, San Marcos?
Published tuition is $8,082 for in-state students and $20,682 for out-of-state students, before any aid.
What does California State University, San Marcos actually cost after financial aid?
It depends on family income. After grants and scholarships, families earning under $30,000 pay a net $6,230 a year, while families over $110,000 pay $18,734.
What is the total cost of attendance at California State University, San Marcos?
$21,649 a year as the institution reports it — tuition, fees, housing, books and living costs combined. Almost nobody pays this in full; the net price above is what families actually pay.
Is California State University, San Marcos worth the money?
Graduates earn a median $62,908 ten years after starting, against $17,350 of median debt — see the full payback breakdown for the arithmetic.

Source: US Department of Education College Scorecard. Tuition and cost of attendance are as reported by the institution; net price is the average paid by students receiving federal aid, by household income band. Figures imported 28 Aug 2026.