Even if seller doesn't disclosure, your realtor should know how to check if house is in flood zone.
According to floodsmart.gov, this house is not in flood zone.
Also, when financing a house, your lender will check if house is in flood zone, since lenders lend you the money, they will proptect themselves by checking zone flood, among other things, and will force you to pay flood insurance if the house is in flood zone.
Hope I answer your question.
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