Solid hiring helped push down unemployment rates in 40 U.S. states last month, the most since November. The declines show job markets are improving in most areas of the country.

The Labor Department says unemployment rates only rose in Louisiana, Tennessee and North Dakota. Rates were unchanged in seven states.

California, New York and South Carolina all reported the largest declines in April unemployment. Each states rate fell by 0.4 percentage points.

The report noted that 30 states added jobs in April; 18 reported fewer jobs.

Nationwide, employers added 165,000 jobs in April and the unemployment rate fell to a four-year low of 7.5 percent. The economy has added an average of 208,000 jobs a month since November. That's up from only 138,000 a month in the previous six months.