||These are the families of Simeon, [numbering] 22,200.
Eleh mishpechot haShim'oni shnayim ve'esrim elef umatayim.
||By families, the descendants of Gad were the Tzefonite family from Tzefon, the Chaggite family from Chaggi, the Shunite family from Shuni,
Beney Gad lemishpechotam li-Tsfon mishpachat haTsfoni le-Chagi mishpachat haChagi le-Shuni mishpachat haShuni.
In the first census, they were 59,300 (Numbers 1:23), so they suffered a loss of 37,100. Some say that since Zimri was of the tribe of Simeon, all 24,000 who died in the plague (Numbers 25:9) were from Simeon (Rashi; Lekach Tov). Thus, Simeon was the instigator of most of the rebellion in the desert (Ralbag).
See Genesis 46:16.
Tzefion in Genesis.