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 5, GARDNERS, PA 17324-0005
PO BOX 6, GARDNERS, PA 17324-0006
PO BOX 7, GARDNERS, PA 17324-0007
PO BOX 8, GARDNERS, PA 17324-0008
PO BOX 9, GARDNERS, PA 17324-0009
PO BOX 10, GARDNERS, PA 17324-0010
PO BOX 11, GARDNERS, PA 17324-0011
PO BOX 12, GARDNERS, PA 17324-0012
PO BOX 13, GARDNERS, PA 17324-0013
PO BOX 14, GARDNERS, PA 17324-0014
PO BOX 15, GARDNERS, PA 17324-0015
PO BOX 16, GARDNERS, PA 17324-0016
PO BOX 17, GARDNERS, PA 17324-0017
PO BOX 18, GARDNERS, PA 17324-0018
PO BOX 19, GARDNERS, PA 17324-0019
PO BOX 20, GARDNERS, PA 17324-0020
PO BOX 21, GARDNERS, PA 17324-0021
PO BOX 22, GARDNERS, PA 17324-0022
PO BOX 23, GARDNERS, PA 17324-0023
PO BOX 24, GARDNERS, PA 17324-0024
PO BOX 25, GARDNERS, PA 17324-0025
PO BOX 26, GARDNERS, PA 17324-0026
PO BOX 27, GARDNERS, PA 17324-0027
PO BOX 28, GARDNERS, PA 17324-0028
PO BOX 29, GARDNERS, PA 17324-0029
PO BOX 30, GARDNERS, PA 17324-0030
PO BOX 31, GARDNERS, PA 17324-0031
PO BOX 32, GARDNERS, PA 17324-0032
PO BOX 33, GARDNERS, PA 17324-0033
PO BOX 34, GARDNERS, PA 17324-0034
PO BOX 35, GARDNERS, PA 17324-0035
PO BOX 36, GARDNERS, PA 17324-0036
PO BOX 37, GARDNERS, PA 17324-0037
PO BOX 38, GARDNERS, PA 17324-0038
PO BOX 39, GARDNERS, PA 17324-0039
PO BOX 40, GARDNERS, PA 17324-0040
PO BOX 41, GARDNERS, PA 17324-0041
PO BOX 42, GARDNERS, PA 17324-0042
PO BOX 43, GARDNERS, PA 17324-0043
PO BOX 44, GARDNERS, PA 17324-0044
PO BOX 45, GARDNERS, PA 17324-0045
PO BOX 46, GARDNERS, PA 17324-0046
PO BOX 47, GARDNERS, PA 17324-0047
PO BOX 48, GARDNERS, PA 17324-0048
PO BOX 49, GARDNERS, PA 17324-0049
PO BOX 50, GARDNERS, PA 17324-0050
PO BOX 51, GARDNERS, PA 17324-0051
PO BOX 52, GARDNERS, PA 17324-0052
PO BOX 53, GARDNERS, PA 17324-0053
PO BOX 54, GARDNERS, PA 17324-0054
PO BOX 55, GARDNERS, PA 17324-0055
PO BOX 56, GARDNERS, PA 17324-0056
PO BOX 57, GARDNERS, PA 17324-0057
PO BOX 58, GARDNERS, PA 17324-0058
PO BOX 59, GARDNERS, PA 17324-0059
PO BOX 60, GARDNERS, PA 17324-0060
PO BOX 61, GARDNERS, PA 17324-0061
PO BOX 62, GARDNERS, PA 17324-0062
PO BOX 63, GARDNERS, PA 17324-0063
PO BOX 64, GARDNERS, PA 17324-0064
PO BOX 65, GARDNERS, PA 17324-0065
PO BOX 66, GARDNERS, PA 17324-0066
PO BOX 67, GARDNERS, PA 17324-0067
PO BOX 68, GARDNERS, PA 17324-0068
PO BOX 69, GARDNERS, PA 17324-0069
PO BOX 70, GARDNERS, PA 17324-0070
PO BOX 71, GARDNERS, PA 17324-0071
PO BOX 72, GARDNERS, PA 17324-0072
PO BOX 73, GARDNERS, PA 17324-0073
PO BOX 74, GARDNERS, PA 17324-0074
PO BOX 75, GARDNERS, PA 17324-0075
PO BOX 76, GARDNERS, PA 17324-0076
PO BOX 77, GARDNERS, PA 17324-0077
PO BOX 78, GARDNERS, PA 17324-0078
PO BOX 79, GARDNERS, PA 17324-0079
PO BOX 80, GARDNERS, PA 17324-0080
PO BOX 81, GARDNERS, PA 17324-0081
PO BOX 82, GARDNERS, PA 17324-0082
PO BOX 83, GARDNERS, PA 17324-0083
PO BOX 84, GARDNERS, PA 17324-0084
PO BOX 85, GARDNERS, PA 17324-0085
PO BOX 86, GARDNERS, PA 17324-0086
PO BOX 87, GARDNERS, PA 17324-0087
PO BOX 88, GARDNERS, PA 17324-0088
PO BOX 89, GARDNERS, PA 17324-0089
PO BOX 90, GARDNERS, PA 17324-0090
PO BOX 91, GARDNERS, PA 17324-0091
PO BOX 92, GARDNERS, PA 17324-0092
PO BOX 93, GARDNERS, PA 17324-0093
PO BOX 94, GARDNERS, PA 17324-0094
PO BOX 95, GARDNERS, PA 17324-0095
PO BOX 96, GARDNERS, PA 17324-0096
PO BOX 97, GARDNERS, PA 17324-0097
PO BOX 98, GARDNERS, PA 17324-0098
PO BOX 99, GARDNERS, PA 17324-0099
PO BOX 100, GARDNERS, PA 17324-0100
PO BOX 101, GARDNERS, PA 17324-0101
PO BOX 102, GARDNERS, PA 17324-0102
PO BOX 103, GARDNERS, PA 17324-0103
PO BOX 104, GARDNERS, PA 17324-0104
PO BOX 105, GARDNERS, PA 17324-0105
PO BOX 106, GARDNERS, PA 17324-0106
PO BOX 107, GARDNERS, PA 17324-0107
PO BOX 108, GARDNERS, PA 17324-0108
PO BOX 109, GARDNERS, PA 17324-0109
PO BOX 110, GARDNERS, PA 17324-0110
PO BOX 111, GARDNERS, PA 17324-0111
PO BOX 112, GARDNERS, PA 17324-0112
PO BOX 113, GARDNERS, PA 17324-0113
PO BOX 114, GARDNERS, PA 17324-0114
PO BOX 115, GARDNERS, PA 17324-0115
PO BOX 116, GARDNERS, PA 17324-0116
PO BOX 117, GARDNERS, PA 17324-0117
PO BOX 118, GARDNERS, PA 17324-0118
PO BOX 119, GARDNERS, PA 17324-0119
PO BOX 120, GARDNERS, PA 17324-0120
PO BOX 121, GARDNERS, PA 17324-0121
PO BOX 122, GARDNERS, PA 17324-0122
PO BOX 123, GARDNERS, PA 17324-0123
PO BOX 124, GARDNERS, PA 17324-0124
PO BOX 125, GARDNERS, PA 17324-0125
PO BOX 126, GARDNERS, PA 17324-0126
PO BOX 127, GARDNERS, PA 17324-0127
PO BOX 128, GARDNERS, PA 17324-0128
PO BOX 129, GARDNERS, PA 17324-0129
PO BOX 130, GARDNERS, PA 17324-0130
PO BOX 131, GARDNERS, PA 17324-0131
PO BOX 132, GARDNERS, PA 17324-0132
PO BOX 133, GARDNERS, PA 17324-0133
PO BOX 134, GARDNERS, PA 17324-0134
PO BOX 135, GARDNERS, PA 17324-0135
PO BOX 136, GARDNERS, PA 17324-0136
PO BOX 137, GARDNERS, PA 17324-0137
PO BOX 138, GARDNERS, PA 17324-0138
PO BOX 139, GARDNERS, PA 17324-0139
PO BOX 140, GARDNERS, PA 17324-0140
PO BOX 141, GARDNERS, PA 17324-0141
PO BOX 142, GARDNERS, PA 17324-0142
PO BOX 143, GARDNERS, PA 17324-0143
PO BOX 144, GARDNERS, PA 17324-0144
PO BOX 145, GARDNERS, PA 17324-0145
PO BOX 146, GARDNERS, PA 17324-0146
PO BOX 147, GARDNERS, PA 17324-0147
PO BOX 148, GARDNERS, PA 17324-0148
PO BOX 149, GARDNERS, PA 17324-0149
PO BOX 150, GARDNERS, PA 17324-0150
PO BOX 151, GARDNERS, PA 17324-0151
PO BOX 152, GARDNERS, PA 17324-0152
PO BOX 153, GARDNERS, PA 17324-0153
PO BOX 154, GARDNERS, PA 17324-0154
PO BOX 155, GARDNERS, PA 17324-0155
PO BOX 156, GARDNERS, PA 17324-0156