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, ADAIR, IA 50002-0001
PO BOX 2, ADAIR, IA 50002-0002
PO BOX 3, ADAIR, IA 50002-0003
PO BOX 4, ADAIR, IA 50002-0004
PO BOX 5, ADAIR, IA 50002-0005
PO BOX 6, ADAIR, IA 50002-0006
PO BOX 7, ADAIR, IA 50002-0007
PO BOX 8, ADAIR, IA 50002-0008
PO BOX 9, ADAIR, IA 50002-0009
PO BOX 10, ADAIR, IA 50002-0010
PO BOX 11, ADAIR, IA 50002-0011
PO BOX 12, ADAIR, IA 50002-0012
PO BOX 13, ADAIR, IA 50002-0013
PO BOX 14, ADAIR, IA 50002-0014
PO BOX 15, ADAIR, IA 50002-0015
PO BOX 16, ADAIR, IA 50002-0016
PO BOX 17, ADAIR, IA 50002-0017
PO BOX 18, ADAIR, IA 50002-0018
PO BOX 19, ADAIR, IA 50002-0019
PO BOX 20, ADAIR, IA 50002-0020
PO BOX 21, ADAIR, IA 50002-0021
PO BOX 22, ADAIR, IA 50002-0022
PO BOX 23, ADAIR, IA 50002-0023
PO BOX 24, ADAIR, IA 50002-0024
PO BOX 25, ADAIR, IA 50002-0025
PO BOX 26, ADAIR, IA 50002-0026
PO BOX 27, ADAIR, IA 50002-0027
PO BOX 28, ADAIR, IA 50002-0028
PO BOX 29, ADAIR, IA 50002-0029
PO BOX 30, ADAIR, IA 50002-0030
PO BOX 31, ADAIR, IA 50002-0031
PO BOX 32, ADAIR, IA 50002-0032
PO BOX 33, ADAIR, IA 50002-0033
PO BOX 34, ADAIR, IA 50002-0034
PO BOX 35, ADAIR, IA 50002-0035
PO BOX 36, ADAIR, IA 50002-0036
PO BOX 37, ADAIR, IA 50002-0037
PO BOX 38, ADAIR, IA 50002-0038
PO BOX 39, ADAIR, IA 50002-0039
PO BOX 40, ADAIR, IA 50002-0040
PO BOX 41, ADAIR, IA 50002-0041
PO BOX 42, ADAIR, IA 50002-0042
PO BOX 43, ADAIR, IA 50002-0043
PO BOX 44, ADAIR, IA 50002-0044
PO BOX 45, ADAIR, IA 50002-0045
PO BOX 46, ADAIR, IA 50002-0046
PO BOX 47, ADAIR, IA 50002-0047
PO BOX 48, ADAIR, IA 50002-0048
PO BOX 49, ADAIR, IA 50002-0049
PO BOX 50, ADAIR, IA 50002-0050
PO BOX 51, ADAIR, IA 50002-0051
PO BOX 52, ADAIR, IA 50002-0052
PO BOX 53, ADAIR, IA 50002-0053
PO BOX 54, ADAIR, IA 50002-0054
PO BOX 55, ADAIR, IA 50002-0055
PO BOX 56, ADAIR, IA 50002-0056
PO BOX 57, ADAIR, IA 50002-0057
PO BOX 58, ADAIR, IA 50002-0058
PO BOX 59, ADAIR, IA 50002-0059
PO BOX 60, ADAIR, IA 50002-0060
PO BOX 61, ADAIR, IA 50002-0061
PO BOX 62, ADAIR, IA 50002-0062
PO BOX 63, ADAIR, IA 50002-0063
PO BOX 64, ADAIR, IA 50002-0064
PO BOX 65, ADAIR, IA 50002-0065
PO BOX 66, ADAIR, IA 50002-0066
PO BOX 67, ADAIR, IA 50002-0067
PO BOX 68, ADAIR, IA 50002-0068
PO BOX 69, ADAIR, IA 50002-0069
PO BOX 70, ADAIR, IA 50002-0070
PO BOX 71, ADAIR, IA 50002-0071
PO BOX 72, ADAIR, IA 50002-0072
PO BOX 73, ADAIR, IA 50002-0073
PO BOX 74, ADAIR, IA 50002-0074
PO BOX 75, ADAIR, IA 50002-0075
PO BOX 76, ADAIR, IA 50002-0076
PO BOX 77, ADAIR, IA 50002-0077
PO BOX 78, ADAIR, IA 50002-0078
PO BOX 79, ADAIR, IA 50002-0079
PO BOX 80, ADAIR, IA 50002-0080
PO BOX 81, ADAIR, IA 50002-0081
PO BOX 82, ADAIR, IA 50002-0082
PO BOX 83, ADAIR, IA 50002-0083
PO BOX 84, ADAIR, IA 50002-0084
PO BOX 85, ADAIR, IA 50002-0085
PO BOX 86, ADAIR, IA 50002-0086
PO BOX 87, ADAIR, IA 50002-0087
PO BOX 88, ADAIR, IA 50002-0088
PO BOX 89, ADAIR, IA 50002-0089
PO BOX 90, ADAIR, IA 50002-0090
PO BOX 91, ADAIR, IA 50002-0091
PO BOX 92, ADAIR, IA 50002-0092
PO BOX 93, ADAIR, IA 50002-0093
PO BOX 94, ADAIR, IA 50002-0094
PO BOX 95, ADAIR, IA 50002-0095
PO BOX 96, ADAIR, IA 50002-0096
PO BOX 97, ADAIR, IA 50002-0097
PO BOX 98, ADAIR, IA 50002-0098
PO BOX 99, ADAIR, IA 50002-0099
PO BOX 100, ADAIR, IA 50002-0100
PO BOX 101, ADAIR, IA 50002-0101
PO BOX 102, ADAIR, IA 50002-0102
PO BOX 103, ADAIR, IA 50002-0103
PO BOX 104, ADAIR, IA 50002-0104
PO BOX 105, ADAIR, IA 50002-0105
PO BOX 106, ADAIR, IA 50002-0106
PO BOX 107, ADAIR, IA 50002-0107
PO BOX 108, ADAIR, IA 50002-0108
PO BOX 109, ADAIR, IA 50002-0109
PO BOX 110, ADAIR, IA 50002-0110
PO BOX 111, ADAIR, IA 50002-0111
PO BOX 112, ADAIR, IA 50002-0112
PO BOX 113, ADAIR, IA 50002-0113
PO BOX 114, ADAIR, IA 50002-0114
PO BOX 115, ADAIR, IA 50002-0115
PO BOX 116, ADAIR, IA 50002-0116
PO BOX 117, ADAIR, IA 50002-0117
PO BOX 118, ADAIR, IA 50002-0118
PO BOX 119, ADAIR, IA 50002-0119
PO BOX 120, ADAIR, IA 50002-0120
PO BOX 121, ADAIR, IA 50002-0121
PO BOX 122, ADAIR, IA 50002-0122
PO BOX 123, ADAIR, IA 50002-0123
PO BOX 124, ADAIR, IA 50002-0124
PO BOX 125, ADAIR, IA 50002-0125
PO BOX 126, ADAIR, IA 50002-0126
PO BOX 127, ADAIR, IA 50002-0127
PO BOX 128, ADAIR, IA 50002-0128
PO BOX 129, ADAIR, IA 50002-0129
PO BOX 130, ADAIR, IA 50002-0130
PO BOX 131, ADAIR, IA 50002-0131
PO BOX 132, ADAIR, IA 50002-0132
PO BOX 133, ADAIR, IA 50002-0133
PO BOX 134, ADAIR, IA 50002-0134
PO BOX 135, ADAIR, IA 50002-0135
PO BOX 136, ADAIR, IA 50002-0136
PO BOX 137, ADAIR, IA 50002-0137
PO BOX 138, ADAIR, IA 50002-0138
PO BOX 139, ADAIR, IA 50002-0139
PO BOX 140, ADAIR, IA 50002-0140
PO BOX 141, ADAIR, IA 50002-0141
PO BOX 142, ADAIR, IA 50002-0142
PO BOX 143, ADAIR, IA 50002-0143
PO BOX 144, ADAIR, IA 50002-0144
PO BOX 145, ADAIR, IA 50002-0145
PO BOX 146, ADAIR, IA 50002-0146
PO BOX 147, ADAIR, IA 50002-0147
PO BOX 148, ADAIR, IA 50002-0148
PO BOX 149, ADAIR, IA 50002-0149
PO BOX 150, ADAIR, IA 50002-0150
PO BOX 151, ADAIR, IA 50002-0151
PO BOX 152, ADAIR, IA 50002-0152
PO BOX 153, ADAIR, IA 50002-0153
PO BOX 154, ADAIR, IA 50002-0154
PO BOX 155, ADAIR, IA 50002-0155
PO BOX 156, ADAIR, IA 50002-0156
PO BOX 157, ADAIR, IA 50002-0157
PO BOX 158, ADAIR, IA 50002-0158
PO BOX 159, ADAIR, IA 50002-0159
PO BOX 160, ADAIR, IA 50002-0160
PO BOX 161, ADAIR, IA 50002-0161
PO BOX 162, ADAIR, IA 50002-0162
PO BOX 163, ADAIR, IA 50002-0163
PO BOX 164, ADAIR, IA 50002-0164
PO BOX 165, ADAIR, IA 50002-0165
PO BOX 166, ADAIR, IA 50002-0166
PO BOX 167, ADAIR, IA 50002-0167
PO BOX 168, ADAIR, IA 50002-0168
PO BOX 169, ADAIR, IA 50002-0169
PO BOX 170, ADAIR, IA 50002-0170
PO BOX 171, ADAIR, IA 50002-0171
PO BOX 172, ADAIR, IA 50002-0172
PO BOX 173, ADAIR, IA 50002-0173
PO BOX 174, ADAIR, IA 50002-0174
PO BOX 175, ADAIR, IA 50002-0175
PO BOX 176, ADAIR, IA 50002-0176
PO BOX 177, ADAIR, IA 50002-0177
PO BOX 178, ADAIR, IA 50002-0178
PO BOX 179, ADAIR, IA 50002-0179
PO BOX 180, ADAIR, IA 50002-0180
PO BOX 181, ADAIR, IA 50002-0181
PO BOX 182, ADAIR, IA 50002-0182
PO BOX 183, ADAIR, IA 50002-0183
PO BOX 184, ADAIR, IA 50002-0184
PO BOX 185, ADAIR, IA 50002-0185
PO BOX 186, ADAIR, IA 50002-0186
PO BOX 187, ADAIR, IA 50002-0187
PO BOX 188, ADAIR, IA 50002-0188
PO BOX 189, ADAIR, IA 50002-0189
PO BOX 190, ADAIR, IA 50002-0190
PO BOX 191, ADAIR, IA 50002-0191
PO BOX 192, ADAIR, IA 50002-0192
PO BOX 193, ADAIR, IA 50002-0193
PO BOX 194, ADAIR, IA 50002-0194
PO BOX 195, ADAIR, IA 50002-0195
PO BOX 196, ADAIR, IA 50002-0196
PO BOX 197, ADAIR, IA 50002-0197
PO BOX 198, ADAIR, IA 50002-0198
PO BOX 199, ADAIR, IA 50002-0199
PO BOX 200, ADAIR, IA 50002-0200
PO BOX 201, ADAIR, IA 50002-0201
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