While separate data showed that job availability improved for the first time in two months, helped by increasing demand for rebuilding areas devastated by the March 11 earthquake and tsunami, the unemployment rate failed to fall amid concerns among companies over the yen's rise and the slowdown in overseas economies.
The number of the unemployed was up by 40,000, or 1.4 percent, to 2.96 million.
The number of employed, meanwhile, was up by 30,000 to an almost unchanged 62.49 million, and the non-workforce population was down by 80,000, or 0.2 percent, to 44.88 million.
By industry, the number of people employed in the medical healthcare and welfare sector increased 240,000 from a year earlier while the number in the construction sector grew by 70,000. Employment in the manufacturing industry, however, fell by 150,000.