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, SIOUX FALLS, SD 57101-0001
PO BOX 2, SIOUX FALLS, SD 57101-0002
PO BOX 3, SIOUX FALLS, SD 57101-0003
PO BOX 4, SIOUX FALLS, SD 57101-0004
PO BOX 5, SIOUX FALLS, SD 57101-0005
PO BOX 6, SIOUX FALLS, SD 57101-0006
PO BOX 7, SIOUX FALLS, SD 57101-0007
PO BOX 8, SIOUX FALLS, SD 57101-0008
PO BOX 9, SIOUX FALLS, SD 57101-0009
PO BOX 10, SIOUX FALLS, SD 57101-0010
PO BOX 11, SIOUX FALLS, SD 57101-0011
PO BOX 12, SIOUX FALLS, SD 57101-0012
PO BOX 13, SIOUX FALLS, SD 57101-0013
PO BOX 14, SIOUX FALLS, SD 57101-0014
PO BOX 15, SIOUX FALLS, SD 57101-0015
PO BOX 16, SIOUX FALLS, SD 57101-0016
PO BOX 17, SIOUX FALLS, SD 57101-0017
PO BOX 18, SIOUX FALLS, SD 57101-0018
PO BOX 19, SIOUX FALLS, SD 57101-0019
PO BOX 20, SIOUX FALLS, SD 57101-0020
PO BOX 21, SIOUX FALLS, SD 57101-0021
PO BOX 22, SIOUX FALLS, SD 57101-0022
PO BOX 23, SIOUX FALLS, SD 57101-0023
PO BOX 24, SIOUX FALLS, SD 57101-0024
PO BOX 25, SIOUX FALLS, SD 57101-0025
PO BOX 26, SIOUX FALLS, SD 57101-0026
PO BOX 27, SIOUX FALLS, SD 57101-0027
PO BOX 28, SIOUX FALLS, SD 57101-0028
PO BOX 29, SIOUX FALLS, SD 57101-0029
PO BOX 30, SIOUX FALLS, SD 57101-0030
PO BOX 31, SIOUX FALLS, SD 57101-0031
PO BOX 32, SIOUX FALLS, SD 57101-0032
PO BOX 33, SIOUX FALLS, SD 57101-0033
PO BOX 34, SIOUX FALLS, SD 57101-0034
PO BOX 35, SIOUX FALLS, SD 57101-0035
PO BOX 36, SIOUX FALLS, SD 57101-0036
PO BOX 37, SIOUX FALLS, SD 57101-0037
PO BOX 38, SIOUX FALLS, SD 57101-0038
PO BOX 39, SIOUX FALLS, SD 57101-0039
PO BOX 40, SIOUX FALLS, SD 57101-0040
PO BOX 41, SIOUX FALLS, SD 57101-0041
PO BOX 42, SIOUX FALLS, SD 57101-0042
PO BOX 43, SIOUX FALLS, SD 57101-0043
PO BOX 44, SIOUX FALLS, SD 57101-0044
PO BOX 45, SIOUX FALLS, SD 57101-0045
PO BOX 46, SIOUX FALLS, SD 57101-0046
PO BOX 47, SIOUX FALLS, SD 57101-0047
PO BOX 48, SIOUX FALLS, SD 57101-0048
PO BOX 49, SIOUX FALLS, SD 57101-0049
PO BOX 50, SIOUX FALLS, SD 57101-0050
PO BOX 51, SIOUX FALLS, SD 57101-0051
PO BOX 52, SIOUX FALLS, SD 57101-0052
PO BOX 53, SIOUX FALLS, SD 57101-0053
PO BOX 54, SIOUX FALLS, SD 57101-0054
PO BOX 55, SIOUX FALLS, SD 57101-0055
PO BOX 56, SIOUX FALLS, SD 57101-0056
PO BOX 57, SIOUX FALLS, SD 57101-0057
PO BOX 58, SIOUX FALLS, SD 57101-0058
PO BOX 59, SIOUX FALLS, SD 57101-0059
PO BOX 60, SIOUX FALLS, SD 57101-0060
PO BOX 61, SIOUX FALLS, SD 57101-0061
PO BOX 62, SIOUX FALLS, SD 57101-0062
PO BOX 63, SIOUX FALLS, SD 57101-0063
PO BOX 64, SIOUX FALLS, SD 57101-0064
PO BOX 65, SIOUX FALLS, SD 57101-0065
PO BOX 66, SIOUX FALLS, SD 57101-0066
PO BOX 67, SIOUX FALLS, SD 57101-0067
PO BOX 68, SIOUX FALLS, SD 57101-0068
PO BOX 69, SIOUX FALLS, SD 57101-0069
PO BOX 70, SIOUX FALLS, SD 57101-0070
PO BOX 71, SIOUX FALLS, SD 57101-0071
PO BOX 72, SIOUX FALLS, SD 57101-0072
PO BOX 73, SIOUX FALLS, SD 57101-0073
PO BOX 74, SIOUX FALLS, SD 57101-0074
PO BOX 75, SIOUX FALLS, SD 57101-0075
PO BOX 76, SIOUX FALLS, SD 57101-0076
PO BOX 77, SIOUX FALLS, SD 57101-0077
PO BOX 78, SIOUX FALLS, SD 57101-0078
PO BOX 79, SIOUX FALLS, SD 57101-0079
PO BOX 80, SIOUX FALLS, SD 57101-0080
PO BOX 81, SIOUX FALLS, SD 57101-0081
PO BOX 82, SIOUX FALLS, SD 57101-0082
PO BOX 83, SIOUX FALLS, SD 57101-0083
PO BOX 84, SIOUX FALLS, SD 57101-0084
PO BOX 85, SIOUX FALLS, SD 57101-0085
PO BOX 86, SIOUX FALLS, SD 57101-0086
PO BOX 87, SIOUX FALLS, SD 57101-0087
PO BOX 88, SIOUX FALLS, SD 57101-0088
PO BOX 89, SIOUX FALLS, SD 57101-0089
PO BOX 90, SIOUX FALLS, SD 57101-0090
PO BOX 91, SIOUX FALLS, SD 57101-0091
PO BOX 92, SIOUX FALLS, SD 57101-0092
PO BOX 93, SIOUX FALLS, SD 57101-0093
PO BOX 94, SIOUX FALLS, SD 57101-0094
PO BOX 95, SIOUX FALLS, SD 57101-0095
PO BOX 96, SIOUX FALLS, SD 57101-0096
PO BOX 97, SIOUX FALLS, SD 57101-0097
PO BOX 98, SIOUX FALLS, SD 57101-0098
PO BOX 99, SIOUX FALLS, SD 57101-0099
PO BOX 100, SIOUX FALLS, SD 57101-0100
PO BOX 101, SIOUX FALLS, SD 57101-0101
PO BOX 102, SIOUX FALLS, SD 57101-0102
PO BOX 103, SIOUX FALLS, SD 57101-0103
PO BOX 104, SIOUX FALLS, SD 57101-0104
PO BOX 105, SIOUX FALLS, SD 57101-0105
PO BOX 106, SIOUX FALLS, SD 57101-0106
PO BOX 107, SIOUX FALLS, SD 57101-0107
PO BOX 108, SIOUX FALLS, SD 57101-0108
PO BOX 109, SIOUX FALLS, SD 57101-0109
PO BOX 110, SIOUX FALLS, SD 57101-0110
PO BOX 111, SIOUX FALLS, SD 57101-0111
PO BOX 112, SIOUX FALLS, SD 57101-0112
PO BOX 113, SIOUX FALLS, SD 57101-0113
PO BOX 114, SIOUX FALLS, SD 57101-0114
PO BOX 115, SIOUX FALLS, SD 57101-0115
PO BOX 116, SIOUX FALLS, SD 57101-0116
PO BOX 117, SIOUX FALLS, SD 57101-0117
PO BOX 118, SIOUX FALLS, SD 57101-0118
PO BOX 119, SIOUX FALLS, SD 57101-0119
PO BOX 120, SIOUX FALLS, SD 57101-0120
PO BOX 121, SIOUX FALLS, SD 57101-0121
PO BOX 122, SIOUX FALLS, SD 57101-0122
PO BOX 123, SIOUX FALLS, SD 57101-0123
PO BOX 124, SIOUX FALLS, SD 57101-0124
PO BOX 125, SIOUX FALLS, SD 57101-0125
PO BOX 126, SIOUX FALLS, SD 57101-0126
PO BOX 127, SIOUX FALLS, SD 57101-0127
PO BOX 128, SIOUX FALLS, SD 57101-0128
PO BOX 129, SIOUX FALLS, SD 57101-0129
PO BOX 130, SIOUX FALLS, SD 57101-0130
PO BOX 131, SIOUX FALLS, SD 57101-0131
PO BOX 132, SIOUX FALLS, SD 57101-0132
PO BOX 133, SIOUX FALLS, SD 57101-0133
PO BOX 134, SIOUX FALLS, SD 57101-0134
PO BOX 135, SIOUX FALLS, SD 57101-0135
PO BOX 136, SIOUX FALLS, SD 57101-0136
PO BOX 137, SIOUX FALLS, SD 57101-0137
PO BOX 138, SIOUX FALLS, SD 57101-0138
PO BOX 139, SIOUX FALLS, SD 57101-0139
PO BOX 140, SIOUX FALLS, SD 57101-0140
PO BOX 141, SIOUX FALLS, SD 57101-0141
PO BOX 142, SIOUX FALLS, SD 57101-0142
PO BOX 143, SIOUX FALLS, SD 57101-0143
PO BOX 144, SIOUX FALLS, SD 57101-0144
PO BOX 145, SIOUX FALLS, SD 57101-0145
PO BOX 146, SIOUX FALLS, SD 57101-0146
PO BOX 147, SIOUX FALLS, SD 57101-0147
PO BOX 148, SIOUX FALLS, SD 57101-0148
PO BOX 149, SIOUX FALLS, SD 57101-0149
PO BOX 150, SIOUX FALLS, SD 57101-0150
PO BOX 151, SIOUX FALLS, SD 57101-0151
PO BOX 152, SIOUX FALLS, SD 57101-0152
PO BOX 153, SIOUX FALLS, SD 57101-0153
PO BOX 154, SIOUX FALLS, SD 57101-0154
PO BOX 155, SIOUX FALLS, SD 57101-0155
PO BOX 156, SIOUX FALLS, SD 57101-0156
PO BOX 157, SIOUX FALLS, SD 57101-0157
PO BOX 158, SIOUX FALLS, SD 57101-0158
PO BOX 159, SIOUX FALLS, SD 57101-0159
PO BOX 160, SIOUX FALLS, SD 57101-0160
PO BOX 161, SIOUX FALLS, SD 57101-0161
PO BOX 162, SIOUX FALLS, SD 57101-0162
PO BOX 163, SIOUX FALLS, SD 57101-0163
PO BOX 164, SIOUX FALLS, SD 57101-0164
PO BOX 165, SIOUX FALLS, SD 57101-0165
PO BOX 166, SIOUX FALLS, SD 57101-0166
PO BOX 167, SIOUX FALLS, SD 57101-0167
PO BOX 168, SIOUX FALLS, SD 57101-0168
PO BOX 169, SIOUX FALLS, SD 57101-0169
PO BOX 170, SIOUX FALLS, SD 57101-0170
PO BOX 171, SIOUX FALLS, SD 57101-0171
PO BOX 172, SIOUX FALLS, SD 57101-0172
PO BOX 173, SIOUX FALLS, SD 57101-0173
PO BOX 174, SIOUX FALLS, SD 57101-0174
PO BOX 175, SIOUX FALLS, SD 57101-0175
PO BOX 176, SIOUX FALLS, SD 57101-0176
PO BOX 177, SIOUX FALLS, SD 57101-0177
PO BOX 178, SIOUX FALLS, SD 57101-0178
PO BOX 179, SIOUX FALLS, SD 57101-0179
PO BOX 180, SIOUX FALLS, SD 57101-0180
Add new comment