The Office for the Coordination of Humanitarian Affairs (OCHA) of the United Nations also revealed on Thursday morning that women and children accounted for 68% of the fatalities.
It quoted statistics from the agency under Hamas control.
In Gaza, about 1,600 persons were listed as missing.
It is not possible to independently verify these numbers.
According to the Israeli army, a ground offensive in Gaza is being planned.
On October 7, terrorists in the Gaza Strip acting on behalf of Hamas slaughtered citizens in Israel.
Cross-border attacks by armed Hamas militants claimed the lives of over 1,400 people.
At least 222 more individuals were reportedly brought into the Gaza Strip under duress, according to the Israeli army.
There are now four freed hostages.
According to Hamas, hostages won't be released again until Israel permits the Gaza Strip to receive supplies of medication and gasoline.