This number marked a decrease from 1,069,400 a month earlier, the Statistics Poland (GUS) agency reported.
These foreign workers hailed from more than 150 countries, with 67.1 percent coming from Ukraine, Statistics Poland said earlier this month.
Belarusians accounted for 11 percent of the foreign workforce, followed by Georgians at 2.4 percent, and Indians at 2 percent.
Colombians represented 1.5 percent of the total labour force, while Filipinos made up 1.4 percent.
An estimated 2.5 million foreigners lived in Poland last year, according to a study by the Polish Economic Institute (PIE), a Warsaw-based think tank.
(gs)
Source: IAR, PAP, stat.gov.pl