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 3101, LAKE WORTH, FL 33465-3101
PO BOX 3102, LAKE WORTH, FL 33465-3102
PO BOX 3103, LAKE WORTH, FL 33465-3103
PO BOX 3104, LAKE WORTH, FL 33465-3104
PO BOX 3105, LAKE WORTH, FL 33465-3105
PO BOX 3106, LAKE WORTH, FL 33465-3106
PO BOX 3107, LAKE WORTH, FL 33465-3107
PO BOX 3108, LAKE WORTH, FL 33465-3108
PO BOX 3109, LAKE WORTH, FL 33465-3109
PO BOX 3110, LAKE WORTH, FL 33465-3110
PO BOX 3111, LAKE WORTH, FL 33465-3111
PO BOX 3112, LAKE WORTH, FL 33465-3112
PO BOX 3113, LAKE WORTH, FL 33465-3113
PO BOX 3114, LAKE WORTH, FL 33465-3114
PO BOX 3115, LAKE WORTH, FL 33465-3115
PO BOX 3116, LAKE WORTH, FL 33465-3116
PO BOX 3117, LAKE WORTH, FL 33465-3117
PO BOX 3118, LAKE WORTH, FL 33465-3118
PO BOX 3119, LAKE WORTH, FL 33465-3119
PO BOX 3120, LAKE WORTH, FL 33465-3120
PO BOX 3121, LAKE WORTH, FL 33465-3121
PO BOX 3122, LAKE WORTH, FL 33465-3122
PO BOX 3123, LAKE WORTH, FL 33465-3123
PO BOX 3124, LAKE WORTH, FL 33465-3124
PO BOX 3125, LAKE WORTH, FL 33465-3125
PO BOX 3126, LAKE WORTH, FL 33465-3126
PO BOX 3127, LAKE WORTH, FL 33465-3127
PO BOX 3128, LAKE WORTH, FL 33465-3128
PO BOX 3129, LAKE WORTH, FL 33465-3129
PO BOX 3130, LAKE WORTH, FL 33465-3130
PO BOX 3131, LAKE WORTH, FL 33465-3131
PO BOX 3132, LAKE WORTH, FL 33465-3132
PO BOX 3133, LAKE WORTH, FL 33465-3133
PO BOX 3134, LAKE WORTH, FL 33465-3134
PO BOX 3135, LAKE WORTH, FL 33465-3135
PO BOX 3136, LAKE WORTH, FL 33465-3136
PO BOX 3137, LAKE WORTH, FL 33465-3137
PO BOX 3138, LAKE WORTH, FL 33465-3138
PO BOX 3139, LAKE WORTH, FL 33465-3139
PO BOX 3140, LAKE WORTH, FL 33465-3140
PO BOX 3141, LAKE WORTH, FL 33465-3141
PO BOX 3142, LAKE WORTH, FL 33465-3142
PO BOX 3143, LAKE WORTH, FL 33465-3143
PO BOX 3144, LAKE WORTH, FL 33465-3144
PO BOX 3145, LAKE WORTH, FL 33465-3145
PO BOX 3146, LAKE WORTH, FL 33465-3146
PO BOX 3147, LAKE WORTH, FL 33465-3147
PO BOX 3148, LAKE WORTH, FL 33465-3148
PO BOX 3149, LAKE WORTH, FL 33465-3149
PO BOX 3150, LAKE WORTH, FL 33465-3150
PO BOX 3151, LAKE WORTH, FL 33465-3151
PO BOX 3152, LAKE WORTH, FL 33465-3152
PO BOX 3153, LAKE WORTH, FL 33465-3153
PO BOX 3154, LAKE WORTH, FL 33465-3154
PO BOX 3155, LAKE WORTH, FL 33465-3155
PO BOX 3156, LAKE WORTH, FL 33465-3156
PO BOX 3157, LAKE WORTH, FL 33465-3157
PO BOX 3158, LAKE WORTH, FL 33465-3158
PO BOX 3159, LAKE WORTH, FL 33465-3159
PO BOX 3160, LAKE WORTH, FL 33465-3160
PO BOX 3161, LAKE WORTH, FL 33465-3161
PO BOX 3162, LAKE WORTH, FL 33465-3162
PO BOX 3163, LAKE WORTH, FL 33465-3163
PO BOX 3164, LAKE WORTH, FL 33465-3164
PO BOX 3165, LAKE WORTH, FL 33465-3165
PO BOX 3166, LAKE WORTH, FL 33465-3166
PO BOX 3167, LAKE WORTH, FL 33465-3167
PO BOX 3168, LAKE WORTH, FL 33465-3168
PO BOX 3169, LAKE WORTH, FL 33465-3169
PO BOX 3170, LAKE WORTH, FL 33465-3170
PO BOX 3171, LAKE WORTH, FL 33465-3171
PO BOX 3172, LAKE WORTH, FL 33465-3172
PO BOX 3173, LAKE WORTH, FL 33465-3173
PO BOX 3174, LAKE WORTH, FL 33465-3174
PO BOX 3175, LAKE WORTH, FL 33465-3175
PO BOX 3176, LAKE WORTH, FL 33465-3176
PO BOX 3177, LAKE WORTH, FL 33465-3177
PO BOX 3178, LAKE WORTH, FL 33465-3178
PO BOX 3179, LAKE WORTH, FL 33465-3179
PO BOX 3180, LAKE WORTH, FL 33465-3180
PO BOX 3181, LAKE WORTH, FL 33465-3181
PO BOX 3182, LAKE WORTH, FL 33465-3182
PO BOX 3183, LAKE WORTH, FL 33465-3183
PO BOX 3184, LAKE WORTH, FL 33465-3184
PO BOX 3185, LAKE WORTH, FL 33465-3185
PO BOX 3186, LAKE WORTH, FL 33465-3186
PO BOX 3187, LAKE WORTH, FL 33465-3187
PO BOX 3188, LAKE WORTH, FL 33465-3188
PO BOX 3189, LAKE WORTH, FL 33465-3189
PO BOX 3190, LAKE WORTH, FL 33465-3190
PO BOX 3191, LAKE WORTH, FL 33465-3191
PO BOX 3192, LAKE WORTH, FL 33465-3192
PO BOX 3193, LAKE WORTH, FL 33465-3193
PO BOX 3194, LAKE WORTH, FL 33465-3194
PO BOX 3195, LAKE WORTH, FL 33465-3195
PO BOX 3196, LAKE WORTH, FL 33465-3196
PO BOX 3197, LAKE WORTH, FL 33465-3197
PO BOX 3198, LAKE WORTH, FL 33465-3198
PO BOX 3199, LAKE WORTH, FL 33465-3199
PO BOX 3200, LAKE WORTH, FL 33465-3200
PO BOX 3201, LAKE WORTH, FL 33465-3201
PO BOX 3202, LAKE WORTH, FL 33465-3202
PO BOX 3203, LAKE WORTH, FL 33465-3203
PO BOX 3204, LAKE WORTH, FL 33465-3204
PO BOX 3205, LAKE WORTH, FL 33465-3205
PO BOX 3206, LAKE WORTH, FL 33465-3206
PO BOX 3207, LAKE WORTH, FL 33465-3207
PO BOX 3208, LAKE WORTH, FL 33465-3208
PO BOX 3209, LAKE WORTH, FL 33465-3209
PO BOX 3210, LAKE WORTH, FL 33465-3210
PO BOX 3211, LAKE WORTH, FL 33465-3211
PO BOX 3212, LAKE WORTH, FL 33465-3212
PO BOX 3213, LAKE WORTH, FL 33465-3213
PO BOX 3214, LAKE WORTH, FL 33465-3214
PO BOX 3215, LAKE WORTH, FL 33465-3215
PO BOX 3216, LAKE WORTH, FL 33465-3216
PO BOX 3217, LAKE WORTH, FL 33465-3217
PO BOX 3218, LAKE WORTH, FL 33465-3218
PO BOX 3219, LAKE WORTH, FL 33465-3219
PO BOX 3220, LAKE WORTH, FL 33465-3220
PO BOX 3221, LAKE WORTH, FL 33465-3221
PO BOX 3222, LAKE WORTH, FL 33465-3222
PO BOX 3223, LAKE WORTH, FL 33465-3223
PO BOX 3224, LAKE WORTH, FL 33465-3224
PO BOX 3225, LAKE WORTH, FL 33465-3225
PO BOX 3226, LAKE WORTH, FL 33465-3226
PO BOX 3227, LAKE WORTH, FL 33465-3227
PO BOX 3228, LAKE WORTH, FL 33465-3228
PO BOX 3229, LAKE WORTH, FL 33465-3229
PO BOX 3230, LAKE WORTH, FL 33465-3230
PO BOX 3231, LAKE WORTH, FL 33465-3231
PO BOX 3232, LAKE WORTH, FL 33465-3232
PO BOX 3233, LAKE WORTH, FL 33465-3233
PO BOX 3234, LAKE WORTH, FL 33465-3234
PO BOX 3235, LAKE WORTH, FL 33465-3235
PO BOX 3236, LAKE WORTH, FL 33465-3236
PO BOX 3237, LAKE WORTH, FL 33465-3237
PO BOX 3238, LAKE WORTH, FL 33465-3238
PO BOX 3239, LAKE WORTH, FL 33465-3239
PO BOX 3240, LAKE WORTH, FL 33465-3240
PO BOX 3241, LAKE WORTH, FL 33465-3241
PO BOX 3242, LAKE WORTH, FL 33465-3242
PO BOX 3243, LAKE WORTH, FL 33465-3243
PO BOX 3244, LAKE WORTH, FL 33465-3244
PO BOX 3245, LAKE WORTH, FL 33465-3245
PO BOX 3246, LAKE WORTH, FL 33465-3246
PO BOX 3247, LAKE WORTH, FL 33465-3247
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