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 161, RICHWOOD, WV 26261-0161
PO BOX 162, RICHWOOD, WV 26261-0162
PO BOX 163, RICHWOOD, WV 26261-0163
PO BOX 164, RICHWOOD, WV 26261-0164
PO BOX 165, RICHWOOD, WV 26261-0165
PO BOX 166, RICHWOOD, WV 26261-0166
PO BOX 167, RICHWOOD, WV 26261-0167
PO BOX 168, RICHWOOD, WV 26261-0168
PO BOX 169, RICHWOOD, WV 26261-0169
PO BOX 170, RICHWOOD, WV 26261-0170
PO BOX 171, RICHWOOD, WV 26261-0171
PO BOX 172, RICHWOOD, WV 26261-0172
PO BOX 173, RICHWOOD, WV 26261-0173
PO BOX 174, RICHWOOD, WV 26261-0174
PO BOX 175, RICHWOOD, WV 26261-0175
PO BOX 176, RICHWOOD, WV 26261-0176
PO BOX 177, RICHWOOD, WV 26261-0177
PO BOX 178, RICHWOOD, WV 26261-0178
PO BOX 179, RICHWOOD, WV 26261-0179
PO BOX 180, RICHWOOD, WV 26261-0180
PO BOX 181, RICHWOOD, WV 26261-0181
PO BOX 182, RICHWOOD, WV 26261-0182
PO BOX 183, RICHWOOD, WV 26261-0183
PO BOX 184, RICHWOOD, WV 26261-0184
PO BOX 185, RICHWOOD, WV 26261-0185
PO BOX 186, RICHWOOD, WV 26261-0186
PO BOX 187, RICHWOOD, WV 26261-0187
PO BOX 188, RICHWOOD, WV 26261-0188
PO BOX 189, RICHWOOD, WV 26261-0189
PO BOX 190, RICHWOOD, WV 26261-0190
PO BOX 191, RICHWOOD, WV 26261-0191
PO BOX 192, RICHWOOD, WV 26261-0192
PO BOX 193, RICHWOOD, WV 26261-0193
PO BOX 194, RICHWOOD, WV 26261-0194
PO BOX 195, RICHWOOD, WV 26261-0195
PO BOX 196, RICHWOOD, WV 26261-0196
PO BOX 197, RICHWOOD, WV 26261-0197
PO BOX 198, RICHWOOD, WV 26261-0198
PO BOX 199, RICHWOOD, WV 26261-0199
PO BOX 200, RICHWOOD, WV 26261-0200
PO BOX 201, RICHWOOD, WV 26261-0201
PO BOX 202, RICHWOOD, WV 26261-0202
PO BOX 203, RICHWOOD, WV 26261-0203
PO BOX 204, RICHWOOD, WV 26261-0204
PO BOX 205, RICHWOOD, WV 26261-0205
PO BOX 206, RICHWOOD, WV 26261-0206
PO BOX 207, RICHWOOD, WV 26261-0207
PO BOX 208, RICHWOOD, WV 26261-0208
PO BOX 209, RICHWOOD, WV 26261-0209
PO BOX 210, RICHWOOD, WV 26261-0210
PO BOX 211, RICHWOOD, WV 26261-0211
PO BOX 212, RICHWOOD, WV 26261-0212
PO BOX 213, RICHWOOD, WV 26261-0213
PO BOX 214, RICHWOOD, WV 26261-0214
PO BOX 215, RICHWOOD, WV 26261-0215
PO BOX 216, RICHWOOD, WV 26261-0216
PO BOX 217, RICHWOOD, WV 26261-0217
PO BOX 218, RICHWOOD, WV 26261-0218
PO BOX 219, RICHWOOD, WV 26261-0219
PO BOX 220, RICHWOOD, WV 26261-0220
PO BOX 221, RICHWOOD, WV 26261-0221
PO BOX 222, RICHWOOD, WV 26261-0222
PO BOX 223, RICHWOOD, WV 26261-0223
PO BOX 224, RICHWOOD, WV 26261-0224
PO BOX 225, RICHWOOD, WV 26261-0225
PO BOX 226, RICHWOOD, WV 26261-0226
PO BOX 227, RICHWOOD, WV 26261-0227
PO BOX 228, RICHWOOD, WV 26261-0228
PO BOX 229, RICHWOOD, WV 26261-0229
PO BOX 230, RICHWOOD, WV 26261-0230
PO BOX 231, RICHWOOD, WV 26261-0231
PO BOX 232, RICHWOOD, WV 26261-0232
PO BOX 233, RICHWOOD, WV 26261-0233
PO BOX 234, RICHWOOD, WV 26261-0234
PO BOX 235, RICHWOOD, WV 26261-0235
PO BOX 236, RICHWOOD, WV 26261-0236
PO BOX 237, RICHWOOD, WV 26261-0237
PO BOX 238, RICHWOOD, WV 26261-0238
PO BOX 239, RICHWOOD, WV 26261-0239
PO BOX 240, RICHWOOD, WV 26261-0240
PO BOX 241, RICHWOOD, WV 26261-0241
PO BOX 242, RICHWOOD, WV 26261-0242
PO BOX 243, RICHWOOD, WV 26261-0243
PO BOX 244, RICHWOOD, WV 26261-0244
PO BOX 245, RICHWOOD, WV 26261-0245
PO BOX 246, RICHWOOD, WV 26261-0246
PO BOX 247, RICHWOOD, WV 26261-0247
PO BOX 248, RICHWOOD, WV 26261-0248
PO BOX 249, RICHWOOD, WV 26261-0249
PO BOX 250, RICHWOOD, WV 26261-0250
PO BOX 251, RICHWOOD, WV 26261-0251
PO BOX 252, RICHWOOD, WV 26261-0252
PO BOX 253, RICHWOOD, WV 26261-0253
PO BOX 254, RICHWOOD, WV 26261-0254
PO BOX 255, RICHWOOD, WV 26261-0255
PO BOX 256, RICHWOOD, WV 26261-0256
PO BOX 257, RICHWOOD, WV 26261-0257
PO BOX 258, RICHWOOD, WV 26261-0258
PO BOX 259, RICHWOOD, WV 26261-0259
PO BOX 260, RICHWOOD, WV 26261-0260
PO BOX 261, RICHWOOD, WV 26261-0261
PO BOX 262, RICHWOOD, WV 26261-0262
PO BOX 263, RICHWOOD, WV 26261-0263
PO BOX 264, RICHWOOD, WV 26261-0264
PO BOX 265, RICHWOOD, WV 26261-0265
PO BOX 266, RICHWOOD, WV 26261-0266
PO BOX 267, RICHWOOD, WV 26261-0267
PO BOX 268, RICHWOOD, WV 26261-0268
PO BOX 269, RICHWOOD, WV 26261-0269
PO BOX 270, RICHWOOD, WV 26261-0270
PO BOX 271, RICHWOOD, WV 26261-0271
PO BOX 272, RICHWOOD, WV 26261-0272
PO BOX 273, RICHWOOD, WV 26261-0273
PO BOX 274, RICHWOOD, WV 26261-0274
PO BOX 275, RICHWOOD, WV 26261-0275
PO BOX 276, RICHWOOD, WV 26261-0276
PO BOX 277, RICHWOOD, WV 26261-0277
PO BOX 278, RICHWOOD, WV 26261-0278
PO BOX 279, RICHWOOD, WV 26261-0279
PO BOX 280, RICHWOOD, WV 26261-0280
PO BOX 281, RICHWOOD, WV 26261-0281
PO BOX 282, RICHWOOD, WV 26261-0282
PO BOX 283, RICHWOOD, WV 26261-0283
PO BOX 284, RICHWOOD, WV 26261-0284
PO BOX 285, RICHWOOD, WV 26261-0285
PO BOX 286, RICHWOOD, WV 26261-0286
PO BOX 287, RICHWOOD, WV 26261-0287
PO BOX 288, RICHWOOD, WV 26261-0288
PO BOX 289, RICHWOOD, WV 26261-0289
PO BOX 290, RICHWOOD, WV 26261-0290
PO BOX 291, RICHWOOD, WV 26261-0291
PO BOX 292, RICHWOOD, WV 26261-0292
PO BOX 293, RICHWOOD, WV 26261-0293
PO BOX 294, RICHWOOD, WV 26261-0294
PO BOX 295, RICHWOOD, WV 26261-0295
PO BOX 296, RICHWOOD, WV 26261-0296
PO BOX 297, RICHWOOD, WV 26261-0297
PO BOX 298, RICHWOOD, WV 26261-0298
PO BOX 299, RICHWOOD, WV 26261-0299
PO BOX 300, RICHWOOD, WV 26261-0300
PO BOX 301, RICHWOOD, WV 26261-0301
PO BOX 302, RICHWOOD, WV 26261-0302
PO BOX 303, RICHWOOD, WV 26261-0303
PO BOX 304, RICHWOOD, WV 26261-0304
PO BOX 305, RICHWOOD, WV 26261-0305
PO BOX 306, RICHWOOD, WV 26261-0306
PO BOX 307, RICHWOOD, WV 26261-0307
PO BOX 308, RICHWOOD, WV 26261-0308
PO BOX 309, RICHWOOD, WV 26261-0309
PO BOX 310, RICHWOOD, WV 26261-0310
PO BOX 311, RICHWOOD, WV 26261-0311
PO BOX 312, RICHWOOD, WV 26261-0312
PO BOX 313, RICHWOOD, WV 26261-0313
PO BOX 314, RICHWOOD, WV 26261-0314
PO BOX 315, RICHWOOD, WV 26261-0315
PO BOX 316, RICHWOOD, WV 26261-0316
PO BOX 317, RICHWOOD, WV 26261-0317
PO BOX 318, RICHWOOD, WV 26261-0318
PO BOX 319, RICHWOOD, WV 26261-0319
PO BOX 320, RICHWOOD, WV 26261-0320
PO BOX 321, RICHWOOD, WV 26261-0321
PO BOX 322, RICHWOOD, WV 26261-0322
PO BOX 323, RICHWOOD, WV 26261-0323
PO BOX 324, RICHWOOD, WV 26261-0324
PO BOX 325, RICHWOOD, WV 26261-0325
PO BOX 326, RICHWOOD, WV 26261-0326
PO BOX 327, RICHWOOD, WV 26261-0327
PO BOX 328, RICHWOOD, WV 26261-0328
PO BOX 329, RICHWOOD, WV 26261-0329
PO BOX 330, RICHWOOD, WV 26261-0330
PO BOX 331, RICHWOOD, WV 26261-0331
PO BOX 332, RICHWOOD, WV 26261-0332
PO BOX 333, RICHWOOD, WV 26261-0333
PO BOX 334, RICHWOOD, WV 26261-0334
PO BOX 335, RICHWOOD, WV 26261-0335
PO BOX 336, RICHWOOD, WV 26261-0336
PO BOX 337, RICHWOOD, WV 26261-0337
PO BOX 338, RICHWOOD, WV 26261-0338
PO BOX 339, RICHWOOD, WV 26261-0339
PO BOX 340, RICHWOOD, WV 26261-0340
PO BOX 341, RICHWOOD, WV 26261-0341
PO BOX 342, RICHWOOD, WV 26261-0342
PO BOX 343, RICHWOOD, WV 26261-0343
PO BOX 344, RICHWOOD, WV 26261-0344
PO BOX 345, RICHWOOD, WV 26261-0345
PO BOX 346, RICHWOOD, WV 26261-0346
PO BOX 347, RICHWOOD, WV 26261-0347
PO BOX 348, RICHWOOD, WV 26261-0348
PO BOX 349, RICHWOOD, WV 26261-0349
PO BOX 350, RICHWOOD, WV 26261-0350
PO BOX 351, RICHWOOD, WV 26261-0351