Wiggins said the price hikes are necessary to help offset an estimated $10,000 to $12,000 in additional annual pay to his staff as a result of a new minimum wage law taking effect Tuesday.
The minimum wage in New Jersey will increase to $8.85 an hour on Tuesday.
South Dakota's current $8.85 minimum wage increases to $9.10 on January 1.
It was $8.60 an hour.
In another six states - Arizona, Arkansas, Colorado, Maine, Missouri and Washington - voters took matters into their own hands, approving measures at the ballot box to raise the minimum wage, according to the nonprofit.
A local ordinance raised the minimum wage to as much as $11 an hour in 2015, then as much as $13 in 2016, depending on the size of the employer and whether it provided health insurance. While few have reached that threshold, several state legislatures and city councils have raised wages through phased-in laws, ballot initiatives and by adjusting for inflation.
Employees who don't receive at least the new minimum wage after notifying their employer and giving the employer 15 days to resolve any claims for unpaid wages may bring a civil action against the employer to recover back wages plus damages and attorney's fees.
New minimum wage requirements will take effect in 20 states and almost two dozen cities around the start of the new year, affecting millions of workers.
Despite predictions of major job losses with a higher minimum wage, that's not what happened.
The remaining 21 states use the federal minimum wage: Alabama, Georgia, Idaho, Indiana, Iowa, Kansas, Kentucky, Louisiana, Mississippi, New Hampshire, North Carolina, North Dakota, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Utah, Virginia, Wisconsin and Wyoming. "Those with children and in expensive states need even more".
Some of the 2019 hikes are part of laws that require wages to increase progressively each year.
"For us it's very simple". In 2020, it will increase again to $15 per hour. In New York City, a similar law went into effect in July of 2018.