The US average weekly wage increased 3.4% year over year to $1,155 in the second quarter, according to data released today by the US Bureau of Labor Statistics.

Among the 349 largest counties in the US, Marin County in California and Lake County in Illinois posted the largest year-over-year percentage increases in average weekly wages, with gains of 11.7% and 9.3% respectively.

New Hanover County in North Carolina had the largest year-over-year percentage decrease in average weekly wages with a loss of 6.4%.

Looking at just the 10 largest US counties, all posted increases in average weekly wages. King County in Washington state experienced the largest percentage gain in average weekly wages at 9.3%. Within King, professional and business services had the largest impact on the county’s average weekly wage gain; average weekly wages increased by $270, or 16.7%, over the year.