There are several ways you can save on your Flood Insurance.
If you already have Flood Insurance through the National Flood Insurance Program (NFIP), continuing to renew your policy can save you money. The NFIP has rates based on risk. If you have a policy based on a lower risk from a previous flood insurance rate map, then your policy may cost less. Allowing your policy to lapse could revoke the previous rate you received if your area's risk has increased.
If you do not have flood insurance, considering a policy through the NFIP is a good start. You can also search for private agencies that provide flood policies. Private insurance offers Direct and Write Your Own (WYO) policies.
You can also mitigate your home and lower your insurance rates. A home elevated at least 3 feet above the Base Flood Elevation (BFE) can expect 60% or more in savings on annual flood insurance premiums. More mitigation ideas can be seen on the "Protection" tab.