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, SAINT GEORGE, KS 66535-0001
PO BOX 2, SAINT GEORGE, KS 66535-0002
PO BOX 3, SAINT GEORGE, KS 66535-0003
PO BOX 4, SAINT GEORGE, KS 66535-0004
PO BOX 5, SAINT GEORGE, KS 66535-0005
PO BOX 6, SAINT GEORGE, KS 66535-0006
PO BOX 7, SAINT GEORGE, KS 66535-0007
PO BOX 8, SAINT GEORGE, KS 66535-0008
PO BOX 9, SAINT GEORGE, KS 66535-0009
PO BOX 10, SAINT GEORGE, KS 66535-0010
PO BOX 11, SAINT GEORGE, KS 66535-0011
PO BOX 12, SAINT GEORGE, KS 66535-0012
PO BOX 13, SAINT GEORGE, KS 66535-0013
PO BOX 14, SAINT GEORGE, KS 66535-0014
PO BOX 15, SAINT GEORGE, KS 66535-0015
PO BOX 16, SAINT GEORGE, KS 66535-0016
PO BOX 17, SAINT GEORGE, KS 66535-0017
PO BOX 18, SAINT GEORGE, KS 66535-0018
PO BOX 19, SAINT GEORGE, KS 66535-0019
PO BOX 20, SAINT GEORGE, KS 66535-0020
PO BOX 21, SAINT GEORGE, KS 66535-0021
PO BOX 22, SAINT GEORGE, KS 66535-0022
PO BOX 23, SAINT GEORGE, KS 66535-0023
PO BOX 24, SAINT GEORGE, KS 66535-0024
PO BOX 25, SAINT GEORGE, KS 66535-0025
PO BOX 26, SAINT GEORGE, KS 66535-0026
PO BOX 27, SAINT GEORGE, KS 66535-0027
PO BOX 28, SAINT GEORGE, KS 66535-0028
PO BOX 29, SAINT GEORGE, KS 66535-0029
PO BOX 30, SAINT GEORGE, KS 66535-0030
PO BOX 31, SAINT GEORGE, KS 66535-0031
PO BOX 32, SAINT GEORGE, KS 66535-0032
PO BOX 33, SAINT GEORGE, KS 66535-0033
PO BOX 34, SAINT GEORGE, KS 66535-0034
PO BOX 35, SAINT GEORGE, KS 66535-0035
PO BOX 36, SAINT GEORGE, KS 66535-0036
PO BOX 37, SAINT GEORGE, KS 66535-0037
PO BOX 38, SAINT GEORGE, KS 66535-0038
PO BOX 39, SAINT GEORGE, KS 66535-0039
PO BOX 40, SAINT GEORGE, KS 66535-0040
PO BOX 41, SAINT GEORGE, KS 66535-0041
PO BOX 42, SAINT GEORGE, KS 66535-0042
PO BOX 43, SAINT GEORGE, KS 66535-0043
PO BOX 44, SAINT GEORGE, KS 66535-0044
PO BOX 45, SAINT GEORGE, KS 66535-0045
PO BOX 46, SAINT GEORGE, KS 66535-0046
PO BOX 47, SAINT GEORGE, KS 66535-0047
PO BOX 48, SAINT GEORGE, KS 66535-0048
PO BOX 49, SAINT GEORGE, KS 66535-0049
PO BOX 50, SAINT GEORGE, KS 66535-0050
PO BOX 51, SAINT GEORGE, KS 66535-0051
PO BOX 52, SAINT GEORGE, KS 66535-0052
PO BOX 53, SAINT GEORGE, KS 66535-0053
PO BOX 54, SAINT GEORGE, KS 66535-0054
PO BOX 55, SAINT GEORGE, KS 66535-0055
PO BOX 56, SAINT GEORGE, KS 66535-0056
PO BOX 57, SAINT GEORGE, KS 66535-0057
PO BOX 58, SAINT GEORGE, KS 66535-0058
PO BOX 59, SAINT GEORGE, KS 66535-0059
PO BOX 60, SAINT GEORGE, KS 66535-0060
PO BOX 61, SAINT GEORGE, KS 66535-0061
PO BOX 62, SAINT GEORGE, KS 66535-0062
PO BOX 63, SAINT GEORGE, KS 66535-0063
PO BOX 64, SAINT GEORGE, KS 66535-0064
PO BOX 65, SAINT GEORGE, KS 66535-0065
PO BOX 66, SAINT GEORGE, KS 66535-0066
PO BOX 67, SAINT GEORGE, KS 66535-0067
PO BOX 68, SAINT GEORGE, KS 66535-0068
PO BOX 69, SAINT GEORGE, KS 66535-0069
PO BOX 70, SAINT GEORGE, KS 66535-0070
PO BOX 71, SAINT GEORGE, KS 66535-0071
PO BOX 72, SAINT GEORGE, KS 66535-0072
PO BOX 73, SAINT GEORGE, KS 66535-0073
PO BOX 74, SAINT GEORGE, KS 66535-0074
PO BOX 75, SAINT GEORGE, KS 66535-0075
PO BOX 76, SAINT GEORGE, KS 66535-0076
PO BOX 77, SAINT GEORGE, KS 66535-0077
PO BOX 78, SAINT GEORGE, KS 66535-0078
PO BOX 79, SAINT GEORGE, KS 66535-0079
PO BOX 80, SAINT GEORGE, KS 66535-0080
PO BOX 81, SAINT GEORGE, KS 66535-0081
PO BOX 82, SAINT GEORGE, KS 66535-0082
PO BOX 83, SAINT GEORGE, KS 66535-0083
PO BOX 84, SAINT GEORGE, KS 66535-0084
PO BOX 85, SAINT GEORGE, KS 66535-0085
PO BOX 86, SAINT GEORGE, KS 66535-0086
PO BOX 87, SAINT GEORGE, KS 66535-0087
PO BOX 88, SAINT GEORGE, KS 66535-0088
PO BOX 89, SAINT GEORGE, KS 66535-0089
PO BOX 90, SAINT GEORGE, KS 66535-0090
PO BOX 91, SAINT GEORGE, KS 66535-0091
PO BOX 92, SAINT GEORGE, KS 66535-0092
PO BOX 93, SAINT GEORGE, KS 66535-0093
PO BOX 94, SAINT GEORGE, KS 66535-0094
PO BOX 95, SAINT GEORGE, KS 66535-0095
PO BOX 96, SAINT GEORGE, KS 66535-0096
PO BOX 97, SAINT GEORGE, KS 66535-0097
PO BOX 98, SAINT GEORGE, KS 66535-0098
PO BOX 99, SAINT GEORGE, KS 66535-0099
PO BOX 100, SAINT GEORGE, KS 66535-0100
PO BOX 101, SAINT GEORGE, KS 66535-0101
PO BOX 102, SAINT GEORGE, KS 66535-0102
PO BOX 103, SAINT GEORGE, KS 66535-0103
PO BOX 104, SAINT GEORGE, KS 66535-0104
PO BOX 105, SAINT GEORGE, KS 66535-0105
PO BOX 106, SAINT GEORGE, KS 66535-0106
PO BOX 107, SAINT GEORGE, KS 66535-0107
PO BOX 108, SAINT GEORGE, KS 66535-0108
PO BOX 109, SAINT GEORGE, KS 66535-0109
PO BOX 110, SAINT GEORGE, KS 66535-0110
PO BOX 111, SAINT GEORGE, KS 66535-0111
PO BOX 112, SAINT GEORGE, KS 66535-0112
PO BOX 113, SAINT GEORGE, KS 66535-0113
PO BOX 114, SAINT GEORGE, KS 66535-0114
PO BOX 115, SAINT GEORGE, KS 66535-0115
PO BOX 116, SAINT GEORGE, KS 66535-0116
PO BOX 117, SAINT GEORGE, KS 66535-0117
PO BOX 118, SAINT GEORGE, KS 66535-0118
PO BOX 119, SAINT GEORGE, KS 66535-0119
PO BOX 120, SAINT GEORGE, KS 66535-0120
PO BOX 121, SAINT GEORGE, KS 66535-0121
PO BOX 122, SAINT GEORGE, KS 66535-0122
PO BOX 123, SAINT GEORGE, KS 66535-0123
PO BOX 124, SAINT GEORGE, KS 66535-0124
PO BOX 125, SAINT GEORGE, KS 66535-0125
PO BOX 126, SAINT GEORGE, KS 66535-0126
PO BOX 127, SAINT GEORGE, KS 66535-0127
PO BOX 128, SAINT GEORGE, KS 66535-0128
PO BOX 129, SAINT GEORGE, KS 66535-0129
PO BOX 130, SAINT GEORGE, KS 66535-0130
PO BOX 131, SAINT GEORGE, KS 66535-0131
PO BOX 132, SAINT GEORGE, KS 66535-0132
PO BOX 133, SAINT GEORGE, KS 66535-0133
PO BOX 134, SAINT GEORGE, KS 66535-0134
PO BOX 135, SAINT GEORGE, KS 66535-0135
PO BOX 136, SAINT GEORGE, KS 66535-0136
PO BOX 137, SAINT GEORGE, KS 66535-0137
PO BOX 138, SAINT GEORGE, KS 66535-0138
PO BOX 139, SAINT GEORGE, KS 66535-0139
PO BOX 140, SAINT GEORGE, KS 66535-0140
PO BOX 141, SAINT GEORGE, KS 66535-0141
PO BOX 142, SAINT GEORGE, KS 66535-0142
PO BOX 143, SAINT GEORGE, KS 66535-0143
PO BOX 144, SAINT GEORGE, KS 66535-0144
PO BOX 145, SAINT GEORGE, KS 66535-0145
PO BOX 146, SAINT GEORGE, KS 66535-0146
PO BOX 147, SAINT GEORGE, KS 66535-0147
PO BOX 148, SAINT GEORGE, KS 66535-0148
PO BOX 149, SAINT GEORGE, KS 66535-0149
PO BOX 150, SAINT GEORGE, KS 66535-0150
PO BOX 151, SAINT GEORGE, KS 66535-0151
PO BOX 152, SAINT GEORGE, KS 66535-0152
PO BOX 153, SAINT GEORGE, KS 66535-0153
PO BOX 154, SAINT GEORGE, KS 66535-0154
PO BOX 155, SAINT GEORGE, KS 66535-0155
PO BOX 156, SAINT GEORGE, KS 66535-0156
PO BOX 157, SAINT GEORGE, KS 66535-0157
PO BOX 158, SAINT GEORGE, KS 66535-0158
PO BOX 159, SAINT GEORGE, KS 66535-0159
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