[conn9929]

Lost in village of Fernadina last week. Probably at mailbox area. Postal worker does not have. Now what? Can I get a duplicate?

[Rango]

You have to go to Post office, they will install and new lock and give you the keys. Don't remember the charge. Not all post offices do this. You'll have to call to see which location(s) can do this.

[blueeagle65]

You should have been issued two keys when you purchased your home.

[villagetinker]

Actually we got 3 keys, and I do not know if it is the same, but at the wildwood post office, there is a price list, and new lock and keys was well over $100.
You might check at the lady lake post office as this is where I think the found keys go to, they should be able to also confirm costs, etc.
Hope this helps.