Topeka, Kan. (WIBW)_Shawnee County Commissioners discussed updating the county's flood map at its meeting on Monday. If the map is updated, it that could cause some homeowners to need to purchase flood insurance.

That is because Congress mandates that homeowners with mortgages backed by federally regulated or insured regulators in high-risk flood areas purchase flood insurance.

The county says it will hold public hearings about the changes. For more information, watch the video above and click on the flood zone change map above.