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 801, CLEMSON, SC 29633-0801
PO BOX 802, CLEMSON, SC 29633-0802
PO BOX 803, CLEMSON, SC 29633-0803
PO BOX 804, CLEMSON, SC 29633-0804
PO BOX 805, CLEMSON, SC 29633-0805
PO BOX 806, CLEMSON, SC 29633-0806
PO BOX 807, CLEMSON, SC 29633-0807
PO BOX 808, CLEMSON, SC 29633-0808
PO BOX 809, CLEMSON, SC 29633-0809
PO BOX 810, CLEMSON, SC 29633-0810
PO BOX 811, CLEMSON, SC 29633-0811
PO BOX 812, CLEMSON, SC 29633-0812
PO BOX 813, CLEMSON, SC 29633-0813
PO BOX 814, CLEMSON, SC 29633-0814
PO BOX 815, CLEMSON, SC 29633-0815
PO BOX 816, CLEMSON, SC 29633-0816
PO BOX 817, CLEMSON, SC 29633-0817
PO BOX 818, CLEMSON, SC 29633-0818
PO BOX 819, CLEMSON, SC 29633-0819
PO BOX 820, CLEMSON, SC 29633-0820
PO BOX 821, CLEMSON, SC 29633-0821
PO BOX 822, CLEMSON, SC 29633-0822
PO BOX 823, CLEMSON, SC 29633-0823
PO BOX 824, CLEMSON, SC 29633-0824
PO BOX 825, CLEMSON, SC 29633-0825
PO BOX 826, CLEMSON, SC 29633-0826
PO BOX 827, CLEMSON, SC 29633-0827
PO BOX 828, CLEMSON, SC 29633-0828
PO BOX 829, CLEMSON, SC 29633-0829
PO BOX 830, CLEMSON, SC 29633-0830
PO BOX 831, CLEMSON, SC 29633-0831
PO BOX 832, CLEMSON, SC 29633-0832
PO BOX 833, CLEMSON, SC 29633-0833
PO BOX 834, CLEMSON, SC 29633-0834
PO BOX 835, CLEMSON, SC 29633-0835
PO BOX 836, CLEMSON, SC 29633-0836
PO BOX 837, CLEMSON, SC 29633-0837
PO BOX 838, CLEMSON, SC 29633-0838
PO BOX 839, CLEMSON, SC 29633-0839
PO BOX 840, CLEMSON, SC 29633-0840
PO BOX 841, CLEMSON, SC 29633-0841
PO BOX 842, CLEMSON, SC 29633-0842
PO BOX 843, CLEMSON, SC 29633-0843
PO BOX 844, CLEMSON, SC 29633-0844
PO BOX 845, CLEMSON, SC 29633-0845
PO BOX 846, CLEMSON, SC 29633-0846
PO BOX 847, CLEMSON, SC 29633-0847
PO BOX 848, CLEMSON, SC 29633-0848
PO BOX 849, CLEMSON, SC 29633-0849
PO BOX 850, CLEMSON, SC 29633-0850
PO BOX 851, CLEMSON, SC 29633-0851
PO BOX 852, CLEMSON, SC 29633-0852
PO BOX 853, CLEMSON, SC 29633-0853
PO BOX 854, CLEMSON, SC 29633-0854
PO BOX 855, CLEMSON, SC 29633-0855
PO BOX 856, CLEMSON, SC 29633-0856
PO BOX 857, CLEMSON, SC 29633-0857
PO BOX 858, CLEMSON, SC 29633-0858
PO BOX 859, CLEMSON, SC 29633-0859
PO BOX 860, CLEMSON, SC 29633-0860
PO BOX 861, CLEMSON, SC 29633-0861
PO BOX 862, CLEMSON, SC 29633-0862
PO BOX 863, CLEMSON, SC 29633-0863
PO BOX 864, CLEMSON, SC 29633-0864
PO BOX 865, CLEMSON, SC 29633-0865
PO BOX 866, CLEMSON, SC 29633-0866
PO BOX 867, CLEMSON, SC 29633-0867
PO BOX 868, CLEMSON, SC 29633-0868
PO BOX 869, CLEMSON, SC 29633-0869
PO BOX 870, CLEMSON, SC 29633-0870
PO BOX 871, CLEMSON, SC 29633-0871
PO BOX 872, CLEMSON, SC 29633-0872
PO BOX 873, CLEMSON, SC 29633-0873
PO BOX 874, CLEMSON, SC 29633-0874
PO BOX 875, CLEMSON, SC 29633-0875
PO BOX 876, CLEMSON, SC 29633-0876
PO BOX 877, CLEMSON, SC 29633-0877
PO BOX 878, CLEMSON, SC 29633-0878
PO BOX 879, CLEMSON, SC 29633-0879
PO BOX 880, CLEMSON, SC 29633-0880
PO BOX 881, CLEMSON, SC 29633-0881
PO BOX 882, CLEMSON, SC 29633-0882
PO BOX 883, CLEMSON, SC 29633-0883
PO BOX 884, CLEMSON, SC 29633-0884
PO BOX 885, CLEMSON, SC 29633-0885
PO BOX 886, CLEMSON, SC 29633-0886
PO BOX 887, CLEMSON, SC 29633-0887
PO BOX 888, CLEMSON, SC 29633-0888
PO BOX 889, CLEMSON, SC 29633-0889
PO BOX 890, CLEMSON, SC 29633-0890
PO BOX 891, CLEMSON, SC 29633-0891
PO BOX 892, CLEMSON, SC 29633-0892
PO BOX 893, CLEMSON, SC 29633-0893
PO BOX 894, CLEMSON, SC 29633-0894
PO BOX 895, CLEMSON, SC 29633-0895
PO BOX 896, CLEMSON, SC 29633-0896
PO BOX 897, CLEMSON, SC 29633-0897
PO BOX 898, CLEMSON, SC 29633-0898
PO BOX 899, CLEMSON, SC 29633-0899
PO BOX 900, CLEMSON, SC 29633-0900
PO BOX 901, CLEMSON, SC 29633-0901
PO BOX 902, CLEMSON, SC 29633-0902
PO BOX 903, CLEMSON, SC 29633-0903
PO BOX 904, CLEMSON, SC 29633-0904
PO BOX 905, CLEMSON, SC 29633-0905
PO BOX 906, CLEMSON, SC 29633-0906
PO BOX 907, CLEMSON, SC 29633-0907
PO BOX 908, CLEMSON, SC 29633-0908
PO BOX 909, CLEMSON, SC 29633-0909
PO BOX 910, CLEMSON, SC 29633-0910
PO BOX 911, CLEMSON, SC 29633-0911
PO BOX 912, CLEMSON, SC 29633-0912
PO BOX 913, CLEMSON, SC 29633-0913
PO BOX 914, CLEMSON, SC 29633-0914
PO BOX 915, CLEMSON, SC 29633-0915
PO BOX 916, CLEMSON, SC 29633-0916
PO BOX 917, CLEMSON, SC 29633-0917
PO BOX 918, CLEMSON, SC 29633-0918
PO BOX 919, CLEMSON, SC 29633-0919
PO BOX 920, CLEMSON, SC 29633-0920
PO BOX 921, CLEMSON, SC 29633-0921
PO BOX 922, CLEMSON, SC 29633-0922
PO BOX 923, CLEMSON, SC 29633-0923
PO BOX 924, CLEMSON, SC 29633-0924
PO BOX 925, CLEMSON, SC 29633-0925
PO BOX 926, CLEMSON, SC 29633-0926
PO BOX 927, CLEMSON, SC 29633-0927
PO BOX 928, CLEMSON, SC 29633-0928
PO BOX 929, CLEMSON, SC 29633-0929
PO BOX 930, CLEMSON, SC 29633-0930
PO BOX 931, CLEMSON, SC 29633-0931
PO BOX 932, CLEMSON, SC 29633-0932
PO BOX 933, CLEMSON, SC 29633-0933
PO BOX 934, CLEMSON, SC 29633-0934
PO BOX 935, CLEMSON, SC 29633-0935
PO BOX 936, CLEMSON, SC 29633-0936
PO BOX 937, CLEMSON, SC 29633-0937
PO BOX 938, CLEMSON, SC 29633-0938
PO BOX 939, CLEMSON, SC 29633-0939
PO BOX 940, CLEMSON, SC 29633-0940
PO BOX 941, CLEMSON, SC 29633-0941
PO BOX 942, CLEMSON, SC 29633-0942
PO BOX 943, CLEMSON, SC 29633-0943
PO BOX 944, CLEMSON, SC 29633-0944
PO BOX 945, CLEMSON, SC 29633-0945
PO BOX 946, CLEMSON, SC 29633-0946
PO BOX 947, CLEMSON, SC 29633-0947
PO BOX 948, CLEMSON, SC 29633-0948
PO BOX 949, CLEMSON, SC 29633-0949
PO BOX 950, CLEMSON, SC 29633-0950
PO BOX 951, CLEMSON, SC 29633-0951
PO BOX 952, CLEMSON, SC 29633-0952
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