Staff members at the Far North District Council and Top Energy are among the Northlanders diagnosed with the Covid-19 virus.
Mayor John Carter made the announcement at a council meeting conducted by video conference earlier this month.
Both have since recovered and are now working from home.
Carter said the staff member had gone into isolation after being found to have Covid-19 about two weeks ago.
Before developing symptoms the staffer had ''done a little bit of shopping, etc, so that is an issue for us''.