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 2, NEW HAMPTON, IA 50659-0002
PO BOX 3, NEW HAMPTON, IA 50659-0003
PO BOX 4, NEW HAMPTON, IA 50659-0004
PO BOX 5, NEW HAMPTON, IA 50659-0005
PO BOX 6, NEW HAMPTON, IA 50659-0006
PO BOX 7, NEW HAMPTON, IA 50659-0007
PO BOX 8, NEW HAMPTON, IA 50659-0008
PO BOX 9, NEW HAMPTON, IA 50659-0009
PO BOX 10, NEW HAMPTON, IA 50659-0010
PO BOX 11, NEW HAMPTON, IA 50659-0011
PO BOX 12, NEW HAMPTON, IA 50659-0012
PO BOX 13, NEW HAMPTON, IA 50659-0013
PO BOX 14, NEW HAMPTON, IA 50659-0014
PO BOX 15, NEW HAMPTON, IA 50659-0015
PO BOX 16, NEW HAMPTON, IA 50659-0016
PO BOX 17, NEW HAMPTON, IA 50659-0017
PO BOX 18, NEW HAMPTON, IA 50659-0018
PO BOX 19, NEW HAMPTON, IA 50659-0019
PO BOX 20, NEW HAMPTON, IA 50659-0020
PO BOX 21, NEW HAMPTON, IA 50659-0021
PO BOX 22, NEW HAMPTON, IA 50659-0022
PO BOX 23, NEW HAMPTON, IA 50659-0023
PO BOX 24, NEW HAMPTON, IA 50659-0024
PO BOX 25, NEW HAMPTON, IA 50659-0025
PO BOX 26, NEW HAMPTON, IA 50659-0026
PO BOX 27, NEW HAMPTON, IA 50659-0027
PO BOX 28, NEW HAMPTON, IA 50659-0028
PO BOX 29, NEW HAMPTON, IA 50659-0029
PO BOX 30, NEW HAMPTON, IA 50659-0030
PO BOX 31, NEW HAMPTON, IA 50659-0031
PO BOX 32, NEW HAMPTON, IA 50659-0032
PO BOX 33, NEW HAMPTON, IA 50659-0033
PO BOX 34, NEW HAMPTON, IA 50659-0034
PO BOX 35, NEW HAMPTON, IA 50659-0035
PO BOX 36, NEW HAMPTON, IA 50659-0036
PO BOX 37, NEW HAMPTON, IA 50659-0037
PO BOX 38, NEW HAMPTON, IA 50659-0038
PO BOX 39, NEW HAMPTON, IA 50659-0039
PO BOX 40, NEW HAMPTON, IA 50659-0040
PO BOX 41, NEW HAMPTON, IA 50659-0041
PO BOX 42, NEW HAMPTON, IA 50659-0042
PO BOX 43, NEW HAMPTON, IA 50659-0043
PO BOX 44, NEW HAMPTON, IA 50659-0044
PO BOX 45, NEW HAMPTON, IA 50659-0045
PO BOX 46, NEW HAMPTON, IA 50659-0046
PO BOX 47, NEW HAMPTON, IA 50659-0047
PO BOX 48, NEW HAMPTON, IA 50659-0048
PO BOX 49, NEW HAMPTON, IA 50659-0049
PO BOX 50, NEW HAMPTON, IA 50659-0050
PO BOX 51, NEW HAMPTON, IA 50659-0051
PO BOX 52, NEW HAMPTON, IA 50659-0052
PO BOX 53, NEW HAMPTON, IA 50659-0053
PO BOX 54, NEW HAMPTON, IA 50659-0054
PO BOX 55, NEW HAMPTON, IA 50659-0055
PO BOX 56, NEW HAMPTON, IA 50659-0056
PO BOX 57, NEW HAMPTON, IA 50659-0057
PO BOX 58, NEW HAMPTON, IA 50659-0058
PO BOX 59, NEW HAMPTON, IA 50659-0059
PO BOX 60, NEW HAMPTON, IA 50659-0060
PO BOX 61, NEW HAMPTON, IA 50659-0061
PO BOX 62, NEW HAMPTON, IA 50659-0062
PO BOX 63, NEW HAMPTON, IA 50659-0063
PO BOX 64, NEW HAMPTON, IA 50659-0064
PO BOX 65, NEW HAMPTON, IA 50659-0065
PO BOX 66, NEW HAMPTON, IA 50659-0066
PO BOX 67, NEW HAMPTON, IA 50659-0067
PO BOX 68, NEW HAMPTON, IA 50659-0068
PO BOX 69, NEW HAMPTON, IA 50659-0069
PO BOX 70, NEW HAMPTON, IA 50659-0070
PO BOX 71, NEW HAMPTON, IA 50659-0071
PO BOX 72, NEW HAMPTON, IA 50659-0072
PO BOX 73, NEW HAMPTON, IA 50659-0073
PO BOX 74, NEW HAMPTON, IA 50659-0074
PO BOX 75, NEW HAMPTON, IA 50659-0075
PO BOX 76, NEW HAMPTON, IA 50659-0076
PO BOX 77, NEW HAMPTON, IA 50659-0077
PO BOX 78, NEW HAMPTON, IA 50659-0078
PO BOX 79, NEW HAMPTON, IA 50659-0079
PO BOX 80, NEW HAMPTON, IA 50659-0080
PO BOX 81, NEW HAMPTON, IA 50659-0081
PO BOX 82, NEW HAMPTON, IA 50659-0082
PO BOX 83, NEW HAMPTON, IA 50659-0083
PO BOX 84, NEW HAMPTON, IA 50659-0084
PO BOX 85, NEW HAMPTON, IA 50659-0085
PO BOX 86, NEW HAMPTON, IA 50659-0086
PO BOX 87, NEW HAMPTON, IA 50659-0087
PO BOX 88, NEW HAMPTON, IA 50659-0088
PO BOX 89, NEW HAMPTON, IA 50659-0089
PO BOX 90, NEW HAMPTON, IA 50659-0090
PO BOX 91, NEW HAMPTON, IA 50659-0091
PO BOX 92, NEW HAMPTON, IA 50659-0092
PO BOX 93, NEW HAMPTON, IA 50659-0093
PO BOX 94, NEW HAMPTON, IA 50659-0094
PO BOX 95, NEW HAMPTON, IA 50659-0095
PO BOX 96, NEW HAMPTON, IA 50659-0096
PO BOX 97, NEW HAMPTON, IA 50659-0097
PO BOX 98, NEW HAMPTON, IA 50659-0098
PO BOX 99, NEW HAMPTON, IA 50659-0099
PO BOX 100, NEW HAMPTON, IA 50659-0100
PO BOX 101, NEW HAMPTON, IA 50659-0101
PO BOX 102, NEW HAMPTON, IA 50659-0102
PO BOX 103, NEW HAMPTON, IA 50659-0103
PO BOX 104, NEW HAMPTON, IA 50659-0104
PO BOX 105, NEW HAMPTON, IA 50659-0105
PO BOX 106, NEW HAMPTON, IA 50659-0106
PO BOX 107, NEW HAMPTON, IA 50659-0107
PO BOX 108, NEW HAMPTON, IA 50659-0108
PO BOX 109, NEW HAMPTON, IA 50659-0109
PO BOX 110, NEW HAMPTON, IA 50659-0110
PO BOX 111, NEW HAMPTON, IA 50659-0111
PO BOX 112, NEW HAMPTON, IA 50659-0112
PO BOX 113, NEW HAMPTON, IA 50659-0113
PO BOX 114, NEW HAMPTON, IA 50659-0114
PO BOX 115, NEW HAMPTON, IA 50659-0115
PO BOX 116, NEW HAMPTON, IA 50659-0116
PO BOX 117, NEW HAMPTON, IA 50659-0117
PO BOX 118, NEW HAMPTON, IA 50659-0118
PO BOX 119, NEW HAMPTON, IA 50659-0119
PO BOX 120, NEW HAMPTON, IA 50659-0120
PO BOX 121, NEW HAMPTON, IA 50659-0121
PO BOX 122, NEW HAMPTON, IA 50659-0122
PO BOX 123, NEW HAMPTON, IA 50659-0123
PO BOX 124, NEW HAMPTON, IA 50659-0124
PO BOX 125, NEW HAMPTON, IA 50659-0125
PO BOX 126, NEW HAMPTON, IA 50659-0126
PO BOX 127, NEW HAMPTON, IA 50659-0127
PO BOX 128, NEW HAMPTON, IA 50659-0128
PO BOX 129, NEW HAMPTON, IA 50659-0129
PO BOX 130, NEW HAMPTON, IA 50659-0130
PO BOX 131, NEW HAMPTON, IA 50659-0131
PO BOX 132, NEW HAMPTON, IA 50659-0132
PO BOX 133, NEW HAMPTON, IA 50659-0133
PO BOX 134, NEW HAMPTON, IA 50659-0134
PO BOX 135, NEW HAMPTON, IA 50659-0135
PO BOX 136, NEW HAMPTON, IA 50659-0136
PO BOX 137, NEW HAMPTON, IA 50659-0137
PO BOX 138, NEW HAMPTON, IA 50659-0138
PO BOX 139, NEW HAMPTON, IA 50659-0139
PO BOX 140, NEW HAMPTON, IA 50659-0140
PO BOX 141, NEW HAMPTON, IA 50659-0141
PO BOX 142, NEW HAMPTON, IA 50659-0142
PO BOX 143, NEW HAMPTON, IA 50659-0143
PO BOX 144, NEW HAMPTON, IA 50659-0144
PO BOX 145, NEW HAMPTON, IA 50659-0145
PO BOX 146, NEW HAMPTON, IA 50659-0146
PO BOX 147, NEW HAMPTON, IA 50659-0147
PO BOX 148, NEW HAMPTON, IA 50659-0148
PO BOX 149, NEW HAMPTON, IA 50659-0149
PO BOX 150, NEW HAMPTON, IA 50659-0150
PO BOX 151, NEW HAMPTON, IA 50659-0151
PO BOX 152, NEW HAMPTON, IA 50659-0152
PO BOX 153, NEW HAMPTON, IA 50659-0153
PO BOX 154, NEW HAMPTON, IA 50659-0154
PO BOX 155, NEW HAMPTON, IA 50659-0155
PO BOX 156, NEW HAMPTON, IA 50659-0156
PO BOX 157, NEW HAMPTON, IA 50659-0157
PO BOX 158, NEW HAMPTON, IA 50659-0158
PO BOX 159, NEW HAMPTON, IA 50659-0159
PO BOX 160, NEW HAMPTON, IA 50659-0160
PO BOX 161, NEW HAMPTON, IA 50659-0161
PO BOX 162, NEW HAMPTON, IA 50659-0162
PO BOX 163, NEW HAMPTON, IA 50659-0163
PO BOX 164, NEW HAMPTON, IA 50659-0164
PO BOX 165, NEW HAMPTON, IA 50659-0165
PO BOX 166, NEW HAMPTON, IA 50659-0166
PO BOX 167, NEW HAMPTON, IA 50659-0167
PO BOX 168, NEW HAMPTON, IA 50659-0168
PO BOX 169, NEW HAMPTON, IA 50659-0169
PO BOX 170, NEW HAMPTON, IA 50659-0170
PO BOX 171, NEW HAMPTON, IA 50659-0171
PO BOX 172, NEW HAMPTON, IA 50659-0172
PO BOX 173, NEW HAMPTON, IA 50659-0173
PO BOX 174, NEW HAMPTON, IA 50659-0174
PO BOX 175, NEW HAMPTON, IA 50659-0175
PO BOX 176, NEW HAMPTON, IA 50659-0176
PO BOX 177, NEW HAMPTON, IA 50659-0177
PO BOX 178, NEW HAMPTON, IA 50659-0178
PO BOX 179, NEW HAMPTON, IA 50659-0179
PO BOX 180, NEW HAMPTON, IA 50659-0180
PO BOX 181, NEW HAMPTON, IA 50659-0181
PO BOX 182, NEW HAMPTON, IA 50659-0182
PO BOX 183, NEW HAMPTON, IA 50659-0183
PO BOX 184, NEW HAMPTON, IA 50659-0184
PO BOX 185, NEW HAMPTON, IA 50659-0185
PO BOX 186, NEW HAMPTON, IA 50659-0186
PO BOX 187, NEW HAMPTON, IA 50659-0187
PO BOX 188, NEW HAMPTON, IA 50659-0188
PO BOX 189, NEW HAMPTON, IA 50659-0189
PO BOX 190, NEW HAMPTON, IA 50659-0190
PO BOX 191, NEW HAMPTON, IA 50659-0191
PO BOX 192, NEW HAMPTON, IA 50659-0192
PO BOX 193, NEW HAMPTON, IA 50659-0193
PO BOX 194, NEW HAMPTON, IA 50659-0194
PO BOX 195, NEW HAMPTON, IA 50659-0195
PO BOX 196, NEW HAMPTON, IA 50659-0196
PO BOX 197, NEW HAMPTON, IA 50659-0197
PO BOX 198, NEW HAMPTON, IA 50659-0198
PO BOX 199, NEW HAMPTON, IA 50659-0199
PO BOX 200, NEW HAMPTON, IA 50659-0200
PO BOX 201, NEW HAMPTON, IA 50659-0201
PO BOX 202, NEW HAMPTON, IA 50659-0202
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