Louisiana · FIPS 22089 · Parish seat: Hahnville
St. Charles Parish, LA GIS & Parcel Viewer
Looking for lot lines or a parcel number in St. Charles Parish, LA? The quickest route is the St. Charles Parish GeoPortal Maps viewer, the parish parcel map we keep on file for this parish. We link straight to it and add a few tips for getting around.
Open the St. Charles Parish parcel map ↗
Opens atlas.geoportalmaps.com in a new tab. We link out and never embed or copy parcel data.
Map and parish facts
| Official map | St. Charles Parish GeoPortal Maps viewer |
|---|---|
| Type | Parish-run map |
| Website | atlas.geoportalmaps.com |
| Access | Free, no login (checked Oct 2026) |
| Parish seat | Hahnville |
| Population | 50,620 (2023 Census Bureau estimate) |
| Land area | 278 sq mi |
| FIPS code | 22089 |
Who runs this map
It is a county-level map: St. Charles Parish or the company it hires keeps the parcel layer up to date. Our October 2026 check found the map open to the public, with no account or payment needed.
How to use the St. Charles Parish viewer
- Open the official link; the map is hosted on GeoPortal Maps, a vendor platform used by 17 counties in our directory.
- Accept any disclaimer, then use the search tool to find a street address, owner or parcel ID.
- Click a parcel to view its attributes.
- Use the layer or basemap controls to add aerials and other layers where the county provides them.
Rural addresses don't always geocode well. When that happens, zoom in by hand and click the parcel, or search by owner name.
About St. Charles Parish
Census Bureau figures put St. Charles Parish at about 50,620 people (2023 estimate) on roughly 278 square miles of land, which is about 182 residents per square mile. That makes it number 21 out of 64 Louisiana parishes by population. Census maps also count about 119 square miles of water inside its boundary. The parish seat is Hahnville.
Nearby parcel maps
If the property sits near a parish line, the parcel may belong to a neighbor. These parishes border St. Charles Parish:
Before you rely on the lines
The lines you see online are approximate. They're good for finding a lot and its parcel number, but a legal boundary question needs the recorded plat or a surveyor.