Table A3-9
Standard Mail ZIP Code Usage by Shape
(Percentage of Pieces Received by Households)
Postal Fiscal Years 1987, 2006 and 2007
(Diary Data)
Zip Code Mailing Address Letter Size Envelope Larger Than
Letter Size Envelope
Detached Label Postcard
1987 2006 2007 1987 2006 2007 1987 2006 2007 1987 2006 2007
5-digits 95.4 6.7 7.2 94.9 4.9 6.0 98.7 72.6 70.5 96.0 10.5 8.7
Zip+4 2.3 89.2 89.6 2.6 91.6 91.7 0.6 23.7 26.1 2.0 87.7 89.2
ZIP not included 0.2 0.3 0.3 0.5 0.2 0.4 0.5 3.5 3.3 1.5 1.5 1.9
Don't know/No answer 2.0 3.9 2.9 1.9 3.3 2.0 0.2 0.3 0.1 0.5 0.3 0.1
Total Mail Received by Households 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0
Zip Code Mailing Address Catalog
Not in Envelope
Flyers Newspapers/ Magazines Total
1987 2006 2007 1987 2006 2007 1987 2006 2007 1987 2006 2007
5-digits 95.2 2.1 1.7 86.8 11.3 14.3 80.6 12.8 10.8 92.5 10.7 10.0
Zip+4 2.9 97.2 97.6 2.0 85.6 83.1 1.3 74.7 75.5 2.2 85.7 87.0
ZIP not included 1.4 0.4 0.2 9.7 2.8 2.3 12.1 11.6 12.9 3.5 1.7 1.7
Don't know/No answer 0.5 0.3 0.4 1.5 0.3 0.4 6.0 0.9 0.7 1.7 1.8 1.4
Total Mail Received by Households 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0
Note: Totals may not sum to 100 due to rounding.