The neighborhood uses septic tanks, not a sewer system - a worry since the sinkhole might grow so large it connects to a nearby lake, Guthrie said.
"We got people out of harm's way", said Pasco County Assistant County Administrator Kevin Guthrie.
So far, the sinkhole has destroyed two homes. The hole quickly grew to 200 feet wide - about two-thirds the length of a football field - and 50 feet deep.
The sinkhole then swallowed the home.
He says it was "frightening" to watch the home disappear into the hole.
County property records show there was a sinkhole previously at the property where the house was swallowed up, and that it had been "stabilized", in 2012. By 9:30 a.m. the home had fallen into the sinkhole.
Power is out at about 100 homes in the area of the sink hole, crews are working to restore it.
The limestone dissolves over time due to acidic underground water caused by oxygen, and as the rock dissolves, the earth above the growing caverns becomes too heavy, collapsing into a sinkhole. The home was sold in 2015, according to records.
"We're now in a situation where we are trying to conserve property".
The Red Cross was on the way to the scene to help families affected.