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 1, WHITMER, WV 26296-0001
PO BOX 2, WHITMER, WV 26296-0002
PO BOX 3, WHITMER, WV 26296-0003
PO BOX 4, WHITMER, WV 26296-0004
PO BOX 5, WHITMER, WV 26296-0005
PO BOX 6, WHITMER, WV 26296-0006
PO BOX 7, WHITMER, WV 26296-0007
PO BOX 8, WHITMER, WV 26296-0008
PO BOX 9, WHITMER, WV 26296-0009
PO BOX 10, WHITMER, WV 26296-0010
PO BOX 11, WHITMER, WV 26296-0011
PO BOX 12, WHITMER, WV 26296-0012
PO BOX 13, WHITMER, WV 26296-0013
PO BOX 14, WHITMER, WV 26296-0014
PO BOX 15, WHITMER, WV 26296-0015
PO BOX 16, WHITMER, WV 26296-0016
PO BOX 17, WHITMER, WV 26296-0017
PO BOX 18, WHITMER, WV 26296-0018
PO BOX 19, WHITMER, WV 26296-0019
PO BOX 20, WHITMER, WV 26296-0020
PO BOX 21, WHITMER, WV 26296-0021
PO BOX 22, WHITMER, WV 26296-0022
PO BOX 23, WHITMER, WV 26296-0023
PO BOX 24, WHITMER, WV 26296-0024
PO BOX 25, WHITMER, WV 26296-0025
PO BOX 26, WHITMER, WV 26296-0026
PO BOX 27, WHITMER, WV 26296-0027
PO BOX 28, WHITMER, WV 26296-0028
PO BOX 29, WHITMER, WV 26296-0029
PO BOX 30, WHITMER, WV 26296-0030
PO BOX 31, WHITMER, WV 26296-0031
PO BOX 32, WHITMER, WV 26296-0032
PO BOX 33, WHITMER, WV 26296-0033
PO BOX 34, WHITMER, WV 26296-0034
PO BOX 35, WHITMER, WV 26296-0035
PO BOX 36, WHITMER, WV 26296-0036
PO BOX 37, WHITMER, WV 26296-0037
PO BOX 38, WHITMER, WV 26296-0038
PO BOX 39, WHITMER, WV 26296-0039
PO BOX 40, WHITMER, WV 26296-0040
PO BOX 41, WHITMER, WV 26296-0041
PO BOX 42, WHITMER, WV 26296-0042
PO BOX 43, WHITMER, WV 26296-0043
PO BOX 44, WHITMER, WV 26296-0044
PO BOX 45, WHITMER, WV 26296-0045
PO BOX 46, WHITMER, WV 26296-0046
PO BOX 47, WHITMER, WV 26296-0047
PO BOX 48, WHITMER, WV 26296-0048
PO BOX 49, WHITMER, WV 26296-0049
PO BOX 50, WHITMER, WV 26296-0050
PO BOX 51, WHITMER, WV 26296-0051
PO BOX 52, WHITMER, WV 26296-0052
PO BOX 53, WHITMER, WV 26296-0053
PO BOX 54, WHITMER, WV 26296-0054
PO BOX 55, WHITMER, WV 26296-0055
PO BOX 56, WHITMER, WV 26296-0056
PO BOX 57, WHITMER, WV 26296-0057
PO BOX 58, WHITMER, WV 26296-0058
PO BOX 59, WHITMER, WV 26296-0059
PO BOX 60, WHITMER, WV 26296-0060
PO BOX 61, WHITMER, WV 26296-0061
PO BOX 62, WHITMER, WV 26296-0062
PO BOX 63, WHITMER, WV 26296-0063
PO BOX 64, WHITMER, WV 26296-0064
PO BOX 65, WHITMER, WV 26296-0065
PO BOX 66, WHITMER, WV 26296-0066
PO BOX 67, WHITMER, WV 26296-0067
PO BOX 68, WHITMER, WV 26296-0068
PO BOX 69, WHITMER, WV 26296-0069
PO BOX 70, WHITMER, WV 26296-0070
PO BOX 71, WHITMER, WV 26296-0071
PO BOX 72, WHITMER, WV 26296-0072
PO BOX 73, WHITMER, WV 26296-0073
PO BOX 74, WHITMER, WV 26296-0074
PO BOX 75, WHITMER, WV 26296-0075
PO BOX 76, WHITMER, WV 26296-0076
PO BOX 77, WHITMER, WV 26296-0077
PO BOX 78, WHITMER, WV 26296-0078
PO BOX 79, WHITMER, WV 26296-0079
PO BOX 80, WHITMER, WV 26296-0080
PO BOX 81, WHITMER, WV 26296-0081
PO BOX 82, WHITMER, WV 26296-0082
PO BOX 83, WHITMER, WV 26296-0083
PO BOX 84, WHITMER, WV 26296-0084
PO BOX 85, WHITMER, WV 26296-0085
PO BOX 86, WHITMER, WV 26296-0086
PO BOX 87, WHITMER, WV 26296-0087
PO BOX 88, WHITMER, WV 26296-0088
PO BOX 89, WHITMER, WV 26296-0089
PO BOX 90, WHITMER, WV 26296-0090
PO BOX 91, WHITMER, WV 26296-0091
PO BOX 92, WHITMER, WV 26296-0092
PO BOX 93, WHITMER, WV 26296-0093
PO BOX 94, WHITMER, WV 26296-0094
PO BOX 95, WHITMER, WV 26296-0095
PO BOX 96, WHITMER, WV 26296-0096
PO BOX 97, WHITMER, WV 26296-0097
PO BOX 98, WHITMER, WV 26296-0098
PO BOX 99, WHITMER, WV 26296-0099
PO BOX 100, WHITMER, WV 26296-0100
PO BOX 101, WHITMER, WV 26296-0101
PO BOX 102, WHITMER, WV 26296-0102
PO BOX 103, WHITMER, WV 26296-0103
PO BOX 104, WHITMER, WV 26296-0104
PO BOX 105, WHITMER, WV 26296-0105
PO BOX 106, WHITMER, WV 26296-0106
PO BOX 107, WHITMER, WV 26296-0107
PO BOX 108, WHITMER, WV 26296-0108
PO BOX 109, WHITMER, WV 26296-0109
PO BOX 110, WHITMER, WV 26296-0110
PO BOX 111, WHITMER, WV 26296-0111
PO BOX 112, WHITMER, WV 26296-0112
PO BOX 113, WHITMER, WV 26296-0113
PO BOX 114, WHITMER, WV 26296-0114
PO BOX 115, WHITMER, WV 26296-0115
PO BOX 116, WHITMER, WV 26296-0116
PO BOX 117, WHITMER, WV 26296-0117
PO BOX 118, WHITMER, WV 26296-0118
PO BOX 119, WHITMER, WV 26296-0119
PO BOX 120, WHITMER, WV 26296-0120
PO BOX 121, WHITMER, WV 26296-0121
PO BOX 122, WHITMER, WV 26296-0122
PO BOX 123, WHITMER, WV 26296-0123
PO BOX 124, WHITMER, WV 26296-0124
PO BOX 125, WHITMER, WV 26296-0125
PO BOX 126, WHITMER, WV 26296-0126
PO BOX 127, WHITMER, WV 26296-0127
PO BOX 128, WHITMER, WV 26296-0128
PO BOX 129, WHITMER, WV 26296-0129
PO BOX 130, WHITMER, WV 26296-0130
PO BOX 131, WHITMER, WV 26296-0131
PO BOX 132, WHITMER, WV 26296-0132
PO BOX 133, WHITMER, WV 26296-0133
PO BOX 134, WHITMER, WV 26296-0134
PO BOX 135, WHITMER, WV 26296-0135
PO BOX 136, WHITMER, WV 26296-0136
PO BOX 137, WHITMER, WV 26296-0137
PO BOX 138, WHITMER, WV 26296-0138
PO BOX 139, WHITMER, WV 26296-0139
PO BOX 140, WHITMER, WV 26296-0140
PO BOX 141, WHITMER, WV 26296-0141
PO BOX 142, WHITMER, WV 26296-0142
PO BOX 143, WHITMER, WV 26296-0143
PO BOX 144, WHITMER, WV 26296-0144
PO BOX 145, WHITMER, WV 26296-0145
PO BOX 146, WHITMER, WV 26296-0146
PO BOX 147, WHITMER, WV 26296-0147
PO BOX 148, WHITMER, WV 26296-0148
PO BOX 149, WHITMER, WV 26296-0149
PO BOX 150, WHITMER, WV 26296-0150
PO BOX 151, WHITMER, WV 26296-0151
PO BOX 152, WHITMER, WV 26296-0152