A PO BOX number can be less than or more than four digit. For post office boxes, the general rule is that each box has its own ZIP+4 code.
The last four digit is often one of the following:
1. Zero plus the last three digits of the box number (eg. PO BOX 1001, Los Angeles CA 90001-0001).
2. The last four digits of the box number (eg. PO BOX 9991, Twin Peaks CA 92391-9991).
3. If the box number is less than four digits, enough zeros prepended to the front of the box number to produce a four-digit number(eg. PO BOX 1, Shreveport LA 71161-0001).
However, there is no uniform rule, the zip code plus four is for reference only, the ZIP+4 code must be looked up individually for each box in the USPS offical website.
PO BOX 301, WEST PALM BEACH, FL 33402-0301
PO BOX 302, WEST PALM BEACH, FL 33402-0302
PO BOX 303, WEST PALM BEACH, FL 33402-0303
PO BOX 304, WEST PALM BEACH, FL 33402-0304
PO BOX 305, WEST PALM BEACH, FL 33402-0305
PO BOX 306, WEST PALM BEACH, FL 33402-0306
PO BOX 307, WEST PALM BEACH, FL 33402-0307
PO BOX 308, WEST PALM BEACH, FL 33402-0308
PO BOX 309, WEST PALM BEACH, FL 33402-0309
PO BOX 310, WEST PALM BEACH, FL 33402-0310
PO BOX 311, WEST PALM BEACH, FL 33402-0311
PO BOX 312, WEST PALM BEACH, FL 33402-0312
PO BOX 313, WEST PALM BEACH, FL 33402-0313
PO BOX 314, WEST PALM BEACH, FL 33402-0314
PO BOX 315, WEST PALM BEACH, FL 33402-0315
PO BOX 316, WEST PALM BEACH, FL 33402-0316
PO BOX 317, WEST PALM BEACH, FL 33402-0317
PO BOX 318, WEST PALM BEACH, FL 33402-0318
PO BOX 319, WEST PALM BEACH, FL 33402-0319
PO BOX 320, WEST PALM BEACH, FL 33402-0320
PO BOX 321, WEST PALM BEACH, FL 33402-0321
PO BOX 322, WEST PALM BEACH, FL 33402-0322
PO BOX 323, WEST PALM BEACH, FL 33402-0323
PO BOX 324, WEST PALM BEACH, FL 33402-0324
PO BOX 325, WEST PALM BEACH, FL 33402-0325
PO BOX 326, WEST PALM BEACH, FL 33402-0326
PO BOX 327, WEST PALM BEACH, FL 33402-0327
PO BOX 328, WEST PALM BEACH, FL 33402-0328
PO BOX 329, WEST PALM BEACH, FL 33402-0329
PO BOX 330, WEST PALM BEACH, FL 33402-0330
PO BOX 331, WEST PALM BEACH, FL 33402-0331
PO BOX 332, WEST PALM BEACH, FL 33402-0332
PO BOX 333, WEST PALM BEACH, FL 33402-0333
PO BOX 334, WEST PALM BEACH, FL 33402-0334
PO BOX 335, WEST PALM BEACH, FL 33402-0335
PO BOX 336, WEST PALM BEACH, FL 33402-0336
PO BOX 337, WEST PALM BEACH, FL 33402-0337
PO BOX 338, WEST PALM BEACH, FL 33402-0338
PO BOX 339, WEST PALM BEACH, FL 33402-0339
PO BOX 340, WEST PALM BEACH, FL 33402-0340
PO BOX 341, WEST PALM BEACH, FL 33402-0341
PO BOX 342, WEST PALM BEACH, FL 33402-0342
PO BOX 343, WEST PALM BEACH, FL 33402-0343
PO BOX 344, WEST PALM BEACH, FL 33402-0344
PO BOX 345, WEST PALM BEACH, FL 33402-0345
PO BOX 346, WEST PALM BEACH, FL 33402-0346
PO BOX 347, WEST PALM BEACH, FL 33402-0347
PO BOX 348, WEST PALM BEACH, FL 33402-0348
PO BOX 349, WEST PALM BEACH, FL 33402-0349
PO BOX 350, WEST PALM BEACH, FL 33402-0350
PO BOX 351, WEST PALM BEACH, FL 33402-0351
PO BOX 352, WEST PALM BEACH, FL 33402-0352
PO BOX 353, WEST PALM BEACH, FL 33402-0353
PO BOX 354, WEST PALM BEACH, FL 33402-0354
PO BOX 355, WEST PALM BEACH, FL 33402-0355
PO BOX 356, WEST PALM BEACH, FL 33402-0356
PO BOX 357, WEST PALM BEACH, FL 33402-0357
PO BOX 358, WEST PALM BEACH, FL 33402-0358
PO BOX 359, WEST PALM BEACH, FL 33402-0359
PO BOX 360, WEST PALM BEACH, FL 33402-0360
PO BOX 361, WEST PALM BEACH, FL 33402-0361
PO BOX 362, WEST PALM BEACH, FL 33402-0362
PO BOX 363, WEST PALM BEACH, FL 33402-0363
PO BOX 364, WEST PALM BEACH, FL 33402-0364
PO BOX 365, WEST PALM BEACH, FL 33402-0365
PO BOX 366, WEST PALM BEACH, FL 33402-0366
PO BOX 367, WEST PALM BEACH, FL 33402-0367
PO BOX 368, WEST PALM BEACH, FL 33402-0368
PO BOX 369, WEST PALM BEACH, FL 33402-0369
PO BOX 370, WEST PALM BEACH, FL 33402-0370
PO BOX 371, WEST PALM BEACH, FL 33402-0371
PO BOX 372, WEST PALM BEACH, FL 33402-0372
PO BOX 373, WEST PALM BEACH, FL 33402-0373
PO BOX 374, WEST PALM BEACH, FL 33402-0374
PO BOX 375, WEST PALM BEACH, FL 33402-0375
PO BOX 376, WEST PALM BEACH, FL 33402-0376
PO BOX 377, WEST PALM BEACH, FL 33402-0377
PO BOX 378, WEST PALM BEACH, FL 33402-0378
PO BOX 379, WEST PALM BEACH, FL 33402-0379
PO BOX 380, WEST PALM BEACH, FL 33402-0380
PO BOX 381, WEST PALM BEACH, FL 33402-0381
PO BOX 382, WEST PALM BEACH, FL 33402-0382
PO BOX 383, WEST PALM BEACH, FL 33402-0383
PO BOX 384, WEST PALM BEACH, FL 33402-0384
PO BOX 385, WEST PALM BEACH, FL 33402-0385
PO BOX 386, WEST PALM BEACH, FL 33402-0386
PO BOX 387, WEST PALM BEACH, FL 33402-0387
PO BOX 388, WEST PALM BEACH, FL 33402-0388
PO BOX 389, WEST PALM BEACH, FL 33402-0389
PO BOX 390, WEST PALM BEACH, FL 33402-0390
PO BOX 391, WEST PALM BEACH, FL 33402-0391
PO BOX 392, WEST PALM BEACH, FL 33402-0392
PO BOX 393, WEST PALM BEACH, FL 33402-0393
PO BOX 394, WEST PALM BEACH, FL 33402-0394
PO BOX 395, WEST PALM BEACH, FL 33402-0395
PO BOX 396, WEST PALM BEACH, FL 33402-0396
PO BOX 397, WEST PALM BEACH, FL 33402-0397
PO BOX 398, WEST PALM BEACH, FL 33402-0398
PO BOX 399, WEST PALM BEACH, FL 33402-0399
PO BOX 400, WEST PALM BEACH, FL 33402-0400
PO BOX 401, WEST PALM BEACH, FL 33402-0401
PO BOX 402, WEST PALM BEACH, FL 33402-0402
PO BOX 403, WEST PALM BEACH, FL 33402-0403
PO BOX 404, WEST PALM BEACH, FL 33402-0404
PO BOX 405, WEST PALM BEACH, FL 33402-0405
PO BOX 406, WEST PALM BEACH, FL 33402-0406
PO BOX 407, WEST PALM BEACH, FL 33402-0407
PO BOX 408, WEST PALM BEACH, FL 33402-0408
PO BOX 409, WEST PALM BEACH, FL 33402-0409
PO BOX 410, WEST PALM BEACH, FL 33402-0410
PO BOX 411, WEST PALM BEACH, FL 33402-0411
PO BOX 412, WEST PALM BEACH, FL 33402-0412
PO BOX 413, WEST PALM BEACH, FL 33402-0413
PO BOX 414, WEST PALM BEACH, FL 33402-0414
PO BOX 415, WEST PALM BEACH, FL 33402-0415
PO BOX 416, WEST PALM BEACH, FL 33402-0416
PO BOX 417, WEST PALM BEACH, FL 33402-0417
PO BOX 418, WEST PALM BEACH, FL 33402-0418
Add new comment