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, ELDORA, IA 50627-0001
PO BOX 2, ELDORA, IA 50627-0002
PO BOX 3, ELDORA, IA 50627-0003
PO BOX 4, ELDORA, IA 50627-0004
PO BOX 5, ELDORA, IA 50627-0005
PO BOX 6, ELDORA, IA 50627-0006
PO BOX 7, ELDORA, IA 50627-0007
PO BOX 8, ELDORA, IA 50627-0008
PO BOX 9, ELDORA, IA 50627-0009
PO BOX 10, ELDORA, IA 50627-0010
PO BOX 11, ELDORA, IA 50627-0011
PO BOX 12, ELDORA, IA 50627-0012
PO BOX 13, ELDORA, IA 50627-0013
PO BOX 14, ELDORA, IA 50627-0014
PO BOX 15, ELDORA, IA 50627-0015
PO BOX 16, ELDORA, IA 50627-0016
PO BOX 17, ELDORA, IA 50627-0017
PO BOX 18, ELDORA, IA 50627-0018
PO BOX 19, ELDORA, IA 50627-0019
PO BOX 20, ELDORA, IA 50627-0020
PO BOX 21, ELDORA, IA 50627-0021
PO BOX 22, ELDORA, IA 50627-0022
PO BOX 23, ELDORA, IA 50627-0023
PO BOX 24, ELDORA, IA 50627-0024
PO BOX 25, ELDORA, IA 50627-0025
PO BOX 26, ELDORA, IA 50627-0026
PO BOX 27, ELDORA, IA 50627-0027
PO BOX 28, ELDORA, IA 50627-0028
PO BOX 29, ELDORA, IA 50627-0029
PO BOX 30, ELDORA, IA 50627-0030
PO BOX 31, ELDORA, IA 50627-0031
PO BOX 32, ELDORA, IA 50627-0032
PO BOX 33, ELDORA, IA 50627-0033
PO BOX 34, ELDORA, IA 50627-0034
PO BOX 35, ELDORA, IA 50627-0035
PO BOX 36, ELDORA, IA 50627-0036
PO BOX 37, ELDORA, IA 50627-0037
PO BOX 38, ELDORA, IA 50627-0038
PO BOX 39, ELDORA, IA 50627-0039
PO BOX 40, ELDORA, IA 50627-0040
PO BOX 41, ELDORA, IA 50627-0041
PO BOX 42, ELDORA, IA 50627-0042
PO BOX 43, ELDORA, IA 50627-0043
PO BOX 44, ELDORA, IA 50627-0044
PO BOX 45, ELDORA, IA 50627-0045
PO BOX 46, ELDORA, IA 50627-0046
PO BOX 47, ELDORA, IA 50627-0047
PO BOX 48, ELDORA, IA 50627-0048
PO BOX 49, ELDORA, IA 50627-0049
PO BOX 50, ELDORA, IA 50627-0050
PO BOX 51, ELDORA, IA 50627-0051
PO BOX 52, ELDORA, IA 50627-0052
PO BOX 53, ELDORA, IA 50627-0053
PO BOX 54, ELDORA, IA 50627-0054
PO BOX 55, ELDORA, IA 50627-0055
PO BOX 56, ELDORA, IA 50627-0056
PO BOX 57, ELDORA, IA 50627-0057
PO BOX 58, ELDORA, IA 50627-0058
PO BOX 59, ELDORA, IA 50627-0059
PO BOX 60, ELDORA, IA 50627-0060
PO BOX 61, ELDORA, IA 50627-0061
PO BOX 62, ELDORA, IA 50627-0062
PO BOX 63, ELDORA, IA 50627-0063
PO BOX 64, ELDORA, IA 50627-0064
PO BOX 65, ELDORA, IA 50627-0065
PO BOX 66, ELDORA, IA 50627-0066
PO BOX 67, ELDORA, IA 50627-0067
PO BOX 68, ELDORA, IA 50627-0068
PO BOX 69, ELDORA, IA 50627-0069
PO BOX 70, ELDORA, IA 50627-0070
PO BOX 71, ELDORA, IA 50627-0071
PO BOX 72, ELDORA, IA 50627-0072
PO BOX 73, ELDORA, IA 50627-0073
PO BOX 74, ELDORA, IA 50627-0074
PO BOX 75, ELDORA, IA 50627-0075
PO BOX 76, ELDORA, IA 50627-0076
PO BOX 77, ELDORA, IA 50627-0077
PO BOX 78, ELDORA, IA 50627-0078
PO BOX 79, ELDORA, IA 50627-0079
PO BOX 80, ELDORA, IA 50627-0080
PO BOX 81, ELDORA, IA 50627-0081
PO BOX 82, ELDORA, IA 50627-0082
PO BOX 83, ELDORA, IA 50627-0083
PO BOX 84, ELDORA, IA 50627-0084
PO BOX 85, ELDORA, IA 50627-0085
PO BOX 86, ELDORA, IA 50627-0086
PO BOX 87, ELDORA, IA 50627-0087
PO BOX 88, ELDORA, IA 50627-0088
PO BOX 89, ELDORA, IA 50627-0089
PO BOX 90, ELDORA, IA 50627-0090
PO BOX 91, ELDORA, IA 50627-0091
PO BOX 92, ELDORA, IA 50627-0092
PO BOX 93, ELDORA, IA 50627-0093
PO BOX 94, ELDORA, IA 50627-0094
PO BOX 95, ELDORA, IA 50627-0095
PO BOX 96, ELDORA, IA 50627-0096
PO BOX 97, ELDORA, IA 50627-0097
PO BOX 98, ELDORA, IA 50627-0098
PO BOX 99, ELDORA, IA 50627-0099
PO BOX 100, ELDORA, IA 50627-0100
PO BOX 101, ELDORA, IA 50627-0101
PO BOX 102, ELDORA, IA 50627-0102
PO BOX 103, ELDORA, IA 50627-0103
PO BOX 104, ELDORA, IA 50627-0104
PO BOX 105, ELDORA, IA 50627-0105
PO BOX 106, ELDORA, IA 50627-0106
PO BOX 107, ELDORA, IA 50627-0107
PO BOX 108, ELDORA, IA 50627-0108
PO BOX 109, ELDORA, IA 50627-0109
PO BOX 110, ELDORA, IA 50627-0110
PO BOX 111, ELDORA, IA 50627-0111
PO BOX 112, ELDORA, IA 50627-0112
PO BOX 113, ELDORA, IA 50627-0113
PO BOX 114, ELDORA, IA 50627-0114
PO BOX 115, ELDORA, IA 50627-0115
PO BOX 116, ELDORA, IA 50627-0116
PO BOX 117, ELDORA, IA 50627-0117
PO BOX 118, ELDORA, IA 50627-0118
PO BOX 119, ELDORA, IA 50627-0119
PO BOX 120, ELDORA, IA 50627-0120
PO BOX 121, ELDORA, IA 50627-0121
PO BOX 122, ELDORA, IA 50627-0122
PO BOX 123, ELDORA, IA 50627-0123
PO BOX 124, ELDORA, IA 50627-0124
PO BOX 125, ELDORA, IA 50627-0125
PO BOX 126, ELDORA, IA 50627-0126
PO BOX 127, ELDORA, IA 50627-0127
PO BOX 128, ELDORA, IA 50627-0128
PO BOX 129, ELDORA, IA 50627-0129
PO BOX 130, ELDORA, IA 50627-0130
PO BOX 131, ELDORA, IA 50627-0131
PO BOX 132, ELDORA, IA 50627-0132
PO BOX 133, ELDORA, IA 50627-0133
PO BOX 134, ELDORA, IA 50627-0134
PO BOX 135, ELDORA, IA 50627-0135
PO BOX 136, ELDORA, IA 50627-0136
PO BOX 137, ELDORA, IA 50627-0137
PO BOX 138, ELDORA, IA 50627-0138
PO BOX 139, ELDORA, IA 50627-0139
PO BOX 140, ELDORA, IA 50627-0140
PO BOX 141, ELDORA, IA 50627-0141
PO BOX 142, ELDORA, IA 50627-0142
PO BOX 143, ELDORA, IA 50627-0143
PO BOX 144, ELDORA, IA 50627-0144
PO BOX 145, ELDORA, IA 50627-0145
PO BOX 146, ELDORA, IA 50627-0146
PO BOX 147, ELDORA, IA 50627-0147
PO BOX 148, ELDORA, IA 50627-0148
PO BOX 149, ELDORA, IA 50627-0149
PO BOX 150, ELDORA, IA 50627-0150
PO BOX 151, ELDORA, IA 50627-0151
PO BOX 152, ELDORA, IA 50627-0152
PO BOX 153, ELDORA, IA 50627-0153
PO BOX 154, ELDORA, IA 50627-0154
PO BOX 155, ELDORA, IA 50627-0155
PO BOX 156, ELDORA, IA 50627-0156
PO BOX 157, ELDORA, IA 50627-0157
PO BOX 158, ELDORA, IA 50627-0158
PO BOX 159, ELDORA, IA 50627-0159
PO BOX 160, ELDORA, IA 50627-0160
PO BOX 161, ELDORA, IA 50627-0161
PO BOX 162, ELDORA, IA 50627-0162
PO BOX 163, ELDORA, IA 50627-0163
PO BOX 164, ELDORA, IA 50627-0164
PO BOX 165, ELDORA, IA 50627-0165
PO BOX 166, ELDORA, IA 50627-0166
PO BOX 167, ELDORA, IA 50627-0167
PO BOX 168, ELDORA, IA 50627-0168
PO BOX 169, ELDORA, IA 50627-0169
PO BOX 170, ELDORA, IA 50627-0170
PO BOX 171, ELDORA, IA 50627-0171
PO BOX 172, ELDORA, IA 50627-0172
PO BOX 173, ELDORA, IA 50627-0173
PO BOX 174, ELDORA, IA 50627-0174
PO BOX 175, ELDORA, IA 50627-0175
PO BOX 176, ELDORA, IA 50627-0176
PO BOX 177, ELDORA, IA 50627-0177
PO BOX 178, ELDORA, IA 50627-0178
PO BOX 179, ELDORA, IA 50627-0179
PO BOX 180, ELDORA, IA 50627-0180
PO BOX 181, ELDORA, IA 50627-0181
PO BOX 182, ELDORA, IA 50627-0182
PO BOX 183, ELDORA, IA 50627-0183
PO BOX 184, ELDORA, IA 50627-0184
PO BOX 185, ELDORA, IA 50627-0185
PO BOX 186, ELDORA, IA 50627-0186
PO BOX 187, ELDORA, IA 50627-0187
PO BOX 188, ELDORA, IA 50627-0188
PO BOX 189, ELDORA, IA 50627-0189
PO BOX 190, ELDORA, IA 50627-0190
PO BOX 191, ELDORA, IA 50627-0191
PO BOX 192, ELDORA, IA 50627-0192
PO BOX 193, ELDORA, IA 50627-0193
PO BOX 194, ELDORA, IA 50627-0194
PO BOX 195, ELDORA, IA 50627-0195
PO BOX 196, ELDORA, IA 50627-0196
PO BOX 197, ELDORA, IA 50627-0197
PO BOX 198, ELDORA, IA 50627-0198
PO BOX 199, ELDORA, IA 50627-0199
PO BOX 200, ELDORA, IA 50627-0200
PO BOX 201, ELDORA, IA 50627-0201
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