The biggest rise in average weekly wage was in Peoria County, Illinois, according to US Bureau of Labor Statistics’ data released today. It posted the biggest growth among all US counties in the first quarter with a year-over-year increase of 25.8%. On the other hand, the large county with the biggest decrease was San Francisco, where the average weekly wage fell 9.1%.

The average weekly wage for the country rose 6.7% in the first quarter to $1,374.

Peoria County’s average weekly wage was $1,616 in the first quarter. The BLS note an increase of 43.2% in manufacturing was the largest contributor to Peoria’s increase in average weekly wages.

Next up, Elkhart County in Indiana posted the second-biggest year-over-year increase in average weekly wage, rising 16.6% in the first quarter to $1,312.

The report also saw some counties post declines. San Francisco’s average weekly wage fell 9.1% to $3,393. Neighboring San Mateo County, California, posted the next-biggest decline in average weekly wage, falling 9.0% to $3,300.

Other San Francisco Bay Area counties ranked among the five large counties with the biggest year-over-year decreases in average weekly wage. Santa Clara County saw a 3.8% decline to $3,334, while Sonoma County posted a 0.8% decline to $1,285. The only large US county outside the Bay Area among the five counties with the largest decreases in average weekly wage was Montgomery County in Maryland, where it fell 5.9% to $1,834.

Looking at the US as a whole, 348 of the 355 largest counties posted increases in average weekly wages in the first quarter.