Louisiana · FIPS 22005 · Parish seat: Donaldsonville
Ascension Parish, LA GIS & Parcel Viewer
Parcel lookups for Ascension Parish start at the Ascension Parish ArcGIS parcel map. This page gives you that official link, notes on how the viewer works, and links to the parishes next door.
Open the Ascension Parish parcel map ↗
Opens gis.ascensionparishla.gov in a new tab. We link out and never embed or copy parcel data.
Quick facts
| Official map | Ascension Parish ArcGIS parcel map |
|---|---|
| Type | Parish-run map |
| Website | gis.ascensionparishla.gov |
| Access | Free, no login (checked Oct 2026) |
| Parish seat | Donaldsonville |
| Population | 131,632 (2023 Census Bureau estimate) |
| Land area | 290 sq mi |
| FIPS code | 22005 |
Where the parcel data comes from
It is a county-level map: Ascension Parish or the company it hires keeps the parcel layer up to date. As of our October 2026 test, anyone could open it without signing in or paying.
How to use the Ascension Parish viewer
- Open the link. This viewer is an ArcGIS Experience Builder app, so its layout is custom to the publisher.
- Look for a search box or search widget and type in a street address or parcel ID.
- Click a parcel to see its details in a pop-up or side panel.
- Check the toolbar for a layer list or basemap switcher if you want aerials or other layers.
If an address search comes up empty, try the parcel number from a tax bill or deed instead, or click the lot on the map.
About Ascension Parish
The U.S. Census Bureau estimated Ascension Parish's population at 131,632 in 2023, spread over about 290 square miles of land, or roughly 454 people per square mile. That makes it number 11 out of 64 Louisiana parishes by population. Donaldsonville serves as the parish seat.
Parishes next to Ascension Parish
Ascension Parish shares a border with the parishes below. Each link has its own official map:
- Assumption Parish
- East Baton Rouge Parish
- Iberville Parish
- Livingston Parish
- St. James Parish
- St. John the Baptist Parish
Maps vs. surveys
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.