I can't believe WRJ came up on HN. But, where are you seeing that? WRJ only has one zip code (that I know of), 05001.
WRJ (population between 2,000-3,000) is not only smaller than Cleveland, it is not actually a town. WRJ is a village of the town of Hartford, VT and probably would not be known at all without the railroad station.
Found it: WRJ mail sorting plant is a "sectional center facility" for a lot of NH and VT.
A destination sectional center facility (SCF) is a processing and distribution center (P&DC) of the United States Postal Service (USPS) that serves a designated geographical area defined by one or more three-digit ZIP Code prefixes. A sectional center facility routes mail between local post offices and to and from network distribution centers (NDCs) and Surface Transfer Centers (STCs), which form the backbone of the network.
It's listed on the dropdown for 035, 036, 037, 050, 051, 052, 053, 054, 057, 058, and 059. Being relatively new to the area, I haven't the faintest idea where any of those (besides 050) are. Thanks for shedding some light on yet another interesting aspect of our postal system.
If you're in WRJ, hello neighbor! And if you're not, but are nearby, happy mud season :-)
I trust I'm not going to get a [[citation needed]] when I make the claim that Cleveland is somewhat bigger by any conceivable measure.