evidence: Twenty-two states will increase their minimum wages on January 1, raising pay for nearly 10 million workers [...] Despite continued progress by many states across the country to increase their wage floors, there are still 17.6 million workers earning less than $15 an hour. Almost half of workers (47.8%) earning less than $15 an hour are in one of the 20 states that still uses the federal minimum wage of $7.25 an hour. [...] Source: EPI compilation of minimum wage data from state agency websites and state legislation.