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 4001, LAKE WORTH, FL 33465-4001
PO BOX 4002, LAKE WORTH, FL 33465-4002
PO BOX 4003, LAKE WORTH, FL 33465-4003
PO BOX 4004, LAKE WORTH, FL 33465-4004
PO BOX 4005, LAKE WORTH, FL 33465-4005
PO BOX 4006, LAKE WORTH, FL 33465-4006
PO BOX 4007, LAKE WORTH, FL 33465-4007
PO BOX 4008, LAKE WORTH, FL 33465-4008
PO BOX 4009, LAKE WORTH, FL 33465-4009
PO BOX 4010, LAKE WORTH, FL 33465-4010
PO BOX 4011, LAKE WORTH, FL 33465-4011
PO BOX 4012, LAKE WORTH, FL 33465-4012
PO BOX 4013, LAKE WORTH, FL 33465-4013
PO BOX 4014, LAKE WORTH, FL 33465-4014
PO BOX 4015, LAKE WORTH, FL 33465-4015
PO BOX 4016, LAKE WORTH, FL 33465-4016
PO BOX 4017, LAKE WORTH, FL 33465-4017
PO BOX 4018, LAKE WORTH, FL 33465-4018
PO BOX 4019, LAKE WORTH, FL 33465-4019
PO BOX 4020, LAKE WORTH, FL 33465-4020
PO BOX 4021, LAKE WORTH, FL 33465-4021
PO BOX 4022, LAKE WORTH, FL 33465-4022
PO BOX 4023, LAKE WORTH, FL 33465-4023
PO BOX 4024, LAKE WORTH, FL 33465-4024
PO BOX 4025, LAKE WORTH, FL 33465-4025
PO BOX 4026, LAKE WORTH, FL 33465-4026
PO BOX 4027, LAKE WORTH, FL 33465-4027
PO BOX 4028, LAKE WORTH, FL 33465-4028
PO BOX 4029, LAKE WORTH, FL 33465-4029
PO BOX 4030, LAKE WORTH, FL 33465-4030
PO BOX 4031, LAKE WORTH, FL 33465-4031
PO BOX 4032, LAKE WORTH, FL 33465-4032
PO BOX 4033, LAKE WORTH, FL 33465-4033
PO BOX 4034, LAKE WORTH, FL 33465-4034
PO BOX 4035, LAKE WORTH, FL 33465-4035
PO BOX 4036, LAKE WORTH, FL 33465-4036
PO BOX 4037, LAKE WORTH, FL 33465-4037
PO BOX 4038, LAKE WORTH, FL 33465-4038
PO BOX 4039, LAKE WORTH, FL 33465-4039
PO BOX 4040, LAKE WORTH, FL 33465-4040
PO BOX 4041, LAKE WORTH, FL 33465-4041
PO BOX 4042, LAKE WORTH, FL 33465-4042
PO BOX 4043, LAKE WORTH, FL 33465-4043
PO BOX 4044, LAKE WORTH, FL 33465-4044
PO BOX 4045, LAKE WORTH, FL 33465-4045
PO BOX 4046, LAKE WORTH, FL 33465-4046
PO BOX 4047, LAKE WORTH, FL 33465-4047
PO BOX 4048, LAKE WORTH, FL 33465-4048
PO BOX 4049, LAKE WORTH, FL 33465-4049
PO BOX 4050, LAKE WORTH, FL 33465-4050
PO BOX 4051, LAKE WORTH, FL 33465-4051
PO BOX 4052, LAKE WORTH, FL 33465-4052
PO BOX 4053, LAKE WORTH, FL 33465-4053
PO BOX 4054, LAKE WORTH, FL 33465-4054
PO BOX 4055, LAKE WORTH, FL 33465-4055
PO BOX 4056, LAKE WORTH, FL 33465-4056
PO BOX 4057, LAKE WORTH, FL 33465-4057
PO BOX 4058, LAKE WORTH, FL 33465-4058
PO BOX 4059, LAKE WORTH, FL 33465-4059
PO BOX 4060, LAKE WORTH, FL 33465-4060
PO BOX 4061, LAKE WORTH, FL 33465-4061
PO BOX 4062, LAKE WORTH, FL 33465-4062
PO BOX 4063, LAKE WORTH, FL 33465-4063
PO BOX 4064, LAKE WORTH, FL 33465-4064
PO BOX 4065, LAKE WORTH, FL 33465-4065
PO BOX 4066, LAKE WORTH, FL 33465-4066
PO BOX 4067, LAKE WORTH, FL 33465-4067
PO BOX 4068, LAKE WORTH, FL 33465-4068
PO BOX 4069, LAKE WORTH, FL 33465-4069
PO BOX 4070, LAKE WORTH, FL 33465-4070
PO BOX 4071, LAKE WORTH, FL 33465-4071
PO BOX 4072, LAKE WORTH, FL 33465-4072
PO BOX 4073, LAKE WORTH, FL 33465-4073
PO BOX 4074, LAKE WORTH, FL 33465-4074
PO BOX 4075, LAKE WORTH, FL 33465-4075
PO BOX 4076, LAKE WORTH, FL 33465-4076
PO BOX 4077, LAKE WORTH, FL 33465-4077
PO BOX 4078, LAKE WORTH, FL 33465-4078
PO BOX 4079, LAKE WORTH, FL 33465-4079
PO BOX 4080, LAKE WORTH, FL 33465-4080
PO BOX 4081, LAKE WORTH, FL 33465-4081
PO BOX 4082, LAKE WORTH, FL 33465-4082
PO BOX 4083, LAKE WORTH, FL 33465-4083
PO BOX 4084, LAKE WORTH, FL 33465-4084
PO BOX 4085, LAKE WORTH, FL 33465-4085
PO BOX 4086, LAKE WORTH, FL 33465-4086
PO BOX 4087, LAKE WORTH, FL 33465-4087
PO BOX 4088, LAKE WORTH, FL 33465-4088
PO BOX 4089, LAKE WORTH, FL 33465-4089
PO BOX 4090, LAKE WORTH, FL 33465-4090
PO BOX 4091, LAKE WORTH, FL 33465-4091
PO BOX 4092, LAKE WORTH, FL 33465-4092
PO BOX 4093, LAKE WORTH, FL 33465-4093
PO BOX 4094, LAKE WORTH, FL 33465-4094
PO BOX 4095, LAKE WORTH, FL 33465-4095
PO BOX 4096, LAKE WORTH, FL 33465-4096
PO BOX 4097, LAKE WORTH, FL 33465-4097
PO BOX 4098, LAKE WORTH, FL 33465-4098
PO BOX 4099, LAKE WORTH, FL 33465-4099
PO BOX 4100, LAKE WORTH, FL 33465-4100
PO BOX 4101, LAKE WORTH, FL 33465-4101
PO BOX 4102, LAKE WORTH, FL 33465-4102
PO BOX 4103, LAKE WORTH, FL 33465-4103
PO BOX 4104, LAKE WORTH, FL 33465-4104
PO BOX 4105, LAKE WORTH, FL 33465-4105
PO BOX 4106, LAKE WORTH, FL 33465-4106
PO BOX 4107, LAKE WORTH, FL 33465-4107
PO BOX 4108, LAKE WORTH, FL 33465-4108
PO BOX 4109, LAKE WORTH, FL 33465-4109
PO BOX 4110, LAKE WORTH, FL 33465-4110
PO BOX 4111, LAKE WORTH, FL 33465-4111
PO BOX 4112, LAKE WORTH, FL 33465-4112
PO BOX 4113, LAKE WORTH, FL 33465-4113
PO BOX 4114, LAKE WORTH, FL 33465-4114
PO BOX 4115, LAKE WORTH, FL 33465-4115
PO BOX 4116, LAKE WORTH, FL 33465-4116
PO BOX 4117, LAKE WORTH, FL 33465-4117
PO BOX 4118, LAKE WORTH, FL 33465-4118
PO BOX 4119, LAKE WORTH, FL 33465-4119
PO BOX 4120, LAKE WORTH, FL 33465-4120
PO BOX 4121, LAKE WORTH, FL 33465-4121
PO BOX 4122, LAKE WORTH, FL 33465-4122
PO BOX 4123, LAKE WORTH, FL 33465-4123
PO BOX 4124, LAKE WORTH, FL 33465-4124
PO BOX 4125, LAKE WORTH, FL 33465-4125
PO BOX 4126, LAKE WORTH, FL 33465-4126
PO BOX 4127, LAKE WORTH, FL 33465-4127
PO BOX 4128, LAKE WORTH, FL 33465-4128
PO BOX 4129, LAKE WORTH, FL 33465-4129
PO BOX 4130, LAKE WORTH, FL 33465-4130
PO BOX 4131, LAKE WORTH, FL 33465-4131
PO BOX 4132, LAKE WORTH, FL 33465-4132
PO BOX 4133, LAKE WORTH, FL 33465-4133
PO BOX 4134, LAKE WORTH, FL 33465-4134
PO BOX 4135, LAKE WORTH, FL 33465-4135
PO BOX 4136, LAKE WORTH, FL 33465-4136
PO BOX 4137, LAKE WORTH, FL 33465-4137
PO BOX 4138, LAKE WORTH, FL 33465-4138
PO BOX 4139, LAKE WORTH, FL 33465-4139
PO BOX 4140, LAKE WORTH, FL 33465-4140
PO BOX 4141, LAKE WORTH, FL 33465-4141
PO BOX 4142, LAKE WORTH, FL 33465-4142
PO BOX 4143, LAKE WORTH, FL 33465-4143
PO BOX 4144, LAKE WORTH, FL 33465-4144
PO BOX 4145, LAKE WORTH, FL 33465-4145
PO BOX 4146, LAKE WORTH, FL 33465-4146
PO BOX 4147, LAKE WORTH, FL 33465-4147
PO BOX 4148, LAKE WORTH, FL 33465-4148
PO BOX 4149, LAKE WORTH, FL 33465-4149
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