The federal minimum wage in the US, $7.25 per-hour, hasn't gone up for a long time (as of tomorrow/next year, it will be a decade), but many states and cities have taken the issue into their own hands, and each of their specific increases will take effect tomorrow, on the first day of 2019.
According to Inc., one of the biggest changes in wage is in New York, where the minimum per-hour rate has already jumped by two dollars from $13 to $15 (New York's legislation takes effect today rather than tomorrow). Alaska, on the other hand, is rising its state-wide wage from $9.84 to $9.89, a whopping five cent increase, which lands the Northernmost state more than six dollars behind the minimum wage in Seattle, which is $16.
The reason for Alaska's tiny change is their automatic inflation-adjustment policy, where the minimum wages is tweaked as the US Dollar changes value. Florida, Minnesota, Montana, New Jersey, Ohio, South Dakota, and Vermont also have this in place but the federal government does not (the minimum wage in 1968, $1.60, is actually more than $11 in today's money). The minimum wage in the US has been pretty steadily decreasing since the late 60s, even though if you look at the numbers side-by-side, they increase.
