Nope, no street addresses in town at all. All 80 residents get free PO boxes since there is no street delivery. I did go ahead and try ordering, with a comment explaining this, so we'll see what they do.
What shipper are they using?
I know historically UPS and FedEx won't take P.O. boxes. What address do you use for them?
And you still must have a street address. 1) It's required for a house. Homeowners insurance may send correspondence to a P.O. Box, but they still need the physical location too. Property tax too, they need the location for when they do assessments. Utilities also need to locate the physical location.
2) 911, emergency services need a location. I grew up with a rural route address, that was changed to street and house number for 911. First the streets were all numbers, then a few years later they gave them all names.
Anyway, assuming you are where your profile says, the electric motor repair shop is listed at 101 Main St.,the post office is 307 Main, Smokey's is at 311 Main, and the bank is 312 Main. I'd send it to one of those addresses if you can't come up with another.
I'm sure most would accept UPS or FedEx for you, and the post office would hold any USPS packages.
Per the 2010 census, there were 96 residents in 47 households.