St. John the Baptist County ZIP Codes

List of ZIP Codes in St. John the Baptist County

The following table lists ZIP Codes associated with St. John the Baptist County, Louisiana, based on ZIP Code Tabulation Area (ZCTA) data from the U.S. Census Bureau.


S.N. Zip Code Latitude Longitude City Population Density
1 70049 30.03062 -90.55911 Edgard 1,521 35.9
2 70051 30.07356 -90.63999 Garyville 1,913 91.4
3 70068 30.14113 -90.43502 La Place 33,041 258.8
4 70076 30.04945 -90.63678 Mount Airy 132 44.6
5 70084 30.07242 -90.57251 Reserve 5,273 112.4


About St. John the Baptist County ZIP Codes

St. John the Baptist County in Louisiana (LA) is served by approximately 5 ZIP Codes. These codes cover residential neighborhoods, business districts, and rural areas that fall under the county's jurisdiction.

Based on ZIP-level population estimates, the total population covered by these ZIP Codes is around 41,880 people. Population and density values vary from one ZIP Code to another, reflecting the mix of dense urban communities and lower-density suburban or rural zones.

Many of the most significant population centers in St. John the Baptist County are located in cities such as La Place, Reserve, Garyville, Edgard, Mount Airy. These cities and towns help define the economic and demographic character of the county.

Most ZIP Codes in St. John the Baptist County, Louisiana follow the America/Chicago time zone.