20231017 10295600 1.0 TRUE Zip Code zip zipcode zip code usps postal mail Zip codes in Montgomery County, MD for mailing address (not optimal for statistics compiled by zip code) <DIV STYLE="text-align:Left;font-size:12pt"><P STYLE="margin:0 0 0 0;"><SPAN>While USPS does not make an up-to-date geographic layer of zip codes available, TEBS-GIS uses various available sources to provide as accurate boundaries as possible for zip codes used for mailing address. Because zip code areas overlap county boundaries, this layer - which cuts off at the county boundary - should not be used to join with statistics by zip code; zip codes that overlap with neighboring counties would not reflect the data accurately mapped to this layer. </SPAN><SPAN>Census zip code tabulation areas do not cut off at county boundaries and thus are better suited for mapping statistics by zip code.</SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN /></P></DIV> USPS, TEBS-GIS