Blog · October 14, 2026 · Louisiana
The Franklin GIS Map and the county parcel viewer
Most property questions near Morgan City start with a parcel lookup.
Main page: St. Mary Parish, LA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
Platbookmapper is an Amazon Associate. If you buy through an Amazon link on this page, we earn a commission. The link is a product, not the county map.
For any lot around Berwick, a look at the Franklin GIS map gives you the outline, the owner of record and a parcel ID. Covered here for Franklin: where that map lives, the fastest ways to search, and what to double-check with records.
Getting started with the Franklin GIS map
Parcel maps here are usually run by the county, not the town, which makes the St. Mary Parish parcel viewer the main source for lots in Franklin.
The free map to start with
Your first stop is the St. Mary Parish parcel viewer; it maps each tax parcel in the parish, Berwick included. With a lot near Berwick, put in a street address, an owner's name or a parcel number, and the matching parcel lights up. Write down the parcel ID before closing the panel; each office in the parish asks for it first.
Troubleshooting the viewer
When the map won't open around Patterson, try a desktop browser or clear the cache; the Platbookmapper county page tracks the current link.
Backing up the map with records
Before you sign anything, pull the recorded deed from the Clerk of Court; the parcel map near Berwick only summarizes it. Older tracts near Berwick may go back through many deeds, and a title company can sort it out on a real sale.
Where Franklin fits in
Franklin is part of St. Mary Parish, Louisiana, and the county assessor maps its lots. Franklin is also the county seat, so deeds and plats are filed in town. In and around Baldwin, City or town hall handles things like zoning, permits and utilities within town limits, but the county runs assessment and recording. Lots just outside the city limits toward Morgan City usually follows county rules rather than the town's.
Places you'll see on the map
Franklin is the county seat, home to the main records offices. You'll also find Baldwin, Patterson, Berwick, and Morgan City. About 47,055 people call St. Mary Parish home (Census Bureau estimate, 2023) across some 556 square miles. St. Mary Parish was formed in 1811, so old deeds can run back a long way. Features like Vermilion Bay and Cypremort Point State Park help you orient on the aerial around Patterson.
On site with the map
Most viewers work in a phone browser, which helps when you're standing on land near Morgan City, but coverage can be spotty out of town. A printout of the tract near Patterson helps when you meet an owner or agent.
Printing and saving
Save a screenshot of the lot near Patterson and its record panel, so you have it when calling an office.
Searching the map
Acreage around Baldwin might not have a street number, so zoom in from Interstate 49 and click the outline. For land near Morgan City, a parcel ID is the most reliable search, and it's printed on tax bills.
Land on the parish line
St. Mary Parish borders Assumption Parish, Iberia Parish, St. Martin Parish, and Terrebonne Parish, all with their own assessor records. A tract near the line by Morgan City can show up in two parish records, so open the adjacent map too. The Platbookmapper state page links each neighboring parish map across Louisiana.
Sections, lots and bearings
Louisiana uses the Public Land Survey System, which means a tract near Morgan City is described by section, township and range. A standard section is about one square mile, roughly 640 acres, with 36 sections to a township, though corrections make some sections near Patterson odd-sized. Keep the legal description for land near Berwick when you talk to a surveyor.
Aerials, labels and overlays
Toggling imagery near Patterson helps you see where buildings sit inside the lines.
Reading a parcel record
If sale dates appear, they help gauge the market near Morgan City give a rough idea of values; they're not an appraisal.
Limits of the parcel data
Acreage on the record is a tax-roll number; only a licensed surveyor can set the real corners for a parcel near Baldwin. Around Morgan City, records update in batches, so a deed recorded last month might lag behind.
Who handles what
If the acreage or value on a parcel near Morgan City looks off go to the Parish Assessor, the office behind the parcel record. Zoning, permits and septic questions near Morgan City are for the local planning and health departments, and the answer depends on jurisdiction.
Quick answers
Is there a separate city GIS for Franklin?
In most cases, check the Franklin website or ask city hall, while parcel data usually comes from the county.
How accurate is the parcel map near Berwick?
For most people, lines near Baldwin can be off by several feet or more, so a licensed surveyor should mark corners.
How often is the parcel map updated for land near Berwick?
For most people, records update on the assessor's schedule, so check the deed index.
Can I see aerial photos on the map near Patterson?
With a lot near Baldwin, layer lists vary from one viewer to the next; open the layer list to see what's there.
What's a legal description near Berwick?
The deed for land near Morgan City carries the legal description, and the parcel record often summarizes it.
Open the official St. Mary Parish, LA parcel map See it in the Platbookmapper directory
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey, especially for fences, setbacks, or boundary disputes.