Continuing a push for the payment of higher wages for public-sector jobs, Gov. Andrew M. Cuomo of New York announced a plan on Monday to raise the minimum wage for state university workers to $15.

Mr. Cuomo’s action was the latest to address what he sees as subpar wages: He used a state wage board to increase hourly pay to $15 for fast-food workers last summer and unveiled a similar plan for an estimated 10,000 state workers in November. The university plan will affect a larger number of state employees — about 28,000, according to estimates from the governor’s office — and is designed to include students who use work-study jobs to pay tuition and bills while attending classes.

Many of those jobs currently pay the minimum wage, which last week rose to $9 in New York State. Under Mr. Cuomo’s plan, wages for such jobs will rise, again, to $9.75 next month at nearly three-dozen campuses across the state. Salaries at the City University of New York campuses will not be increased, though employees at some State University of New York schools in the city, such as Maritime College in the Bronx and Downstate Medical Center in Brooklyn, will see their hourly pay rise to $10.50 in February.

Mirroring the gradual, and geographically based, changes for state workers, wages at SUNY affiliates in New York City will rise annually, peaking at $15 at the end of 2018, while increases outside the city will come slower, eventually reaching $15 in July 2021. When fully enacted, the estimated cost to the state will be an estimated $28 million, administration officials say; that money will be drawn from the budget of the state university system.