The data also highlights critical risks in other areas along the Guadalupe River in Kerr County, revealing more than twice as many Americans live in flood prone areas than FEMA's maps show.

Kerr County had discussed buying such things as water gauges and sirens after previous flood disasters. But as with many rural Texas counties, cost was an issue.

Experts suggested that more data and education are needed as Texas and the rest of the country build in known flood plains.

More than 111 people have died across six counties after flash flooding from heavy rain began affecting the state last week.

Maranatha Bible Camp affirms its strong safety protocols and low flood risk as it stands in prayerful support of Texas flood victims.

An analysis of flood maps shows that several buildings, including those where children were sleeping, were in known hazard zones. A $5 million expansion in 2019 did nothing to alleviate the problem.