St. Tammany County, Louisiana Map
Explore St. Tammany County, Louisiana with this interactive street and satellite map. Browse all 10 cities and towns in St. Tammany County below.
Interactive Map of St. Tammany County, Louisiana
| County | St. Tammany |
| State | Louisiana (LA) |
| County Seat | Mandeville |
| Country | United States of America |
| Latitude | 30.418915 |
| Longitude | -89.971239 |
| Cities & Towns | 10 |
| Area Codes | 985 |
About St. Tammany County, Louisiana
St. Tammany Parish occupies the northern shore of the estuary that opens into the Gulf of Mexico, defined by a network of sluggish, tea-colored rivers that carve through pine flatwoods and salt marshes. To the south, the vast expanse of the basin acts as an inland sea, separating this land from the crescent city and its frantic energy. The terrain shifts from the low, swampy margins where cypress knees break the surface of the water like jagged teeth, to the higher, sandy ridges where longleaf pines hold the soil against the humidity. When the sun hangs low and heavy in the west, the light turns a bruised, liquid gold, reflecting off the dark surface of the creeks until the water seems to hold more fire than the sky. These waterways, fed by the slow seepage of deep aquifers, serve as the primary arteries of the landscape, moving with a quiet, persistent gravity toward the brackish reaches of the coast.
St. Tammany Parish emerged from the colonial shifting of empires, drawing its initial character from a mix of settlers who looked away from the coastal marshes toward the drier, higher ground of the interior. The governance of the region solidified as the forest resources—the vast stands of virgin timber—drew those seeking to harvest the wealth of the woods. The parish seat eventually settled in a location that favored the convergence of trade routes where the pine barrens met the navigable river systems, establishing a center of commerce that felt distant from the political turbulence of the capital. Throughout the nineteenth century, the region functioned as a sanctuary for those seeking a respite from the yellow fever outbreaks of the low-lying urban centers, creating a culture of retreat that favored porch-sitting and the slow, deliberate exchange of news. The air here holds a distinct, heavy dampness that seems to preserve the past, keeping the memory of old steam whistles and horse-drawn timber wagons just behind the hum of modern traffic.
Economy and character in the region are tethered to the balance between the encroaching suburban expansion and the stubborn, wild resilience of the wetlands. Many who live here commute across the long, low bridges that span the open water, returning each evening to a place where the pace of life recalibrates to the movement of the tides and the seasonal migration of birds. The culture is a quiet blend of maritime tradition and forest-bound industry, defined by a preference for outdoor living and a deep-seated suspicion of anything that moves too quickly. In the late afternoon, when the wind dies down and the insects begin their rhythmic chorus in the scrub, the heavy scent of crushed pine needles and damp earth rises to meet the cooling air, signaling a return to a more ancestral way of occupying the land. It is a place where the boundaries between the built environment and the untamed swamp remain porous, allowing the wild to press against the edges of the lawn and the street.
Cities and Towns in St. Tammany County
About This St. Tammany County Map Page
This page provides an interactive map of St. Tammany County, Louisiana alongside links to detailed street maps for 10 cities and towns. The county seat is Mandeville. Each city and town map page includes live weather, local news and precise GPS coordinates.
The Search Maps button below the county map opens USGS topographic maps and aerial imagery as base layers, with a labelled U.S. National Grid (USNG) overlay, a distance and bearing tool, and a single-fix GPS readout giving your USNG grid reference and latitude and longitude.
Location data is sourced from the USGS GNIS database and verified by coordinates, not name matching alone.
| Page generated | September 2026 |
| Location data | USGS GNIS database; coordinates matched to 2020 US Census records |
