The jobless rate dropped to 2.9 percent from three percent in May, the State Secretariat for Economic Affairs said in its monthly report.
A total of 126,632 unemployed were registered at regional job centres in June, down 3,678 from the previous month.
The decline marked the fourth month in a row that the jobless rate fell, although year-over-year it remained unchanged.
Unemployment among foreigners fell to 5.5 from 5.8 percent, while the rate for Swiss citizens remained unchanged at 2.1 percent, Seco said.
The jobless rate either dropped or remained unchanged in all cantons.
Geneva registered the highest rate (5.4 percent, down from 5.3 percent) while three cantons — Uri, Obwalden and Nidwalden — recorded the lowest rate of 0.9 percent.
The unemployment rate dropped to 3.1 from 3.2 percent in Zurich, Switzerland’s largest job market.
The cantons of Valais (3.3 percent, down from 3.8 percent) and Graubünden (1.3 percent, down from 1.8 percent) recorded the largest rate reductions.
The number of job vacancies advertised in regional job centres rose to 14,211 in June, up 1,054 from the previous month.
For the full report (in German, also available in French and Italian), check here.