Florida · FIPS 12085 · County seat: Stuart
Martin County, FL GIS & Parcel Viewer
Looking for lot lines or a parcel number in Martin County, FL? The quickest route is the Martin County parcel map, the county parcel map we keep on file for this county. We link straight to it and add a few tips for getting around.
Open the Martin County parcel map ↗
Opens geoweb.martin.fl.us in a new tab. We link out and never embed or copy parcel data.
Quick facts
| Official map | Martin County parcel map |
|---|---|
| Type | County-run map |
| Website | geoweb.martin.fl.us |
| Access | Free, no login (checked Oct 2026) |
| County seat | Stuart |
| Population | 163,315 (2023 Census Bureau estimate) |
| Land area | 544 sq mi |
| FIPS code | 12085 |
Where the parcel data comes from
It is a county-level map: Martin County or the company it hires keeps the parcel layer up to date. When we tested the link in October 2026 it opened with no login and no fee.
Searching for a parcel, step by step
- Press the button above to open the county's own web map.
- Search for the property or pan and zoom to it.
- Click the lot to bring up what the county publishes about it.
- Look for print or measure tools if you need a quick map or rough size.
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.
The county in brief
The U.S. Census Bureau estimated Martin County's population at 163,315 in 2023, spread over about 544 square miles of land, or roughly 300 people per square mile. By population it ranks 33rd of 67 counties in Florida. Another 209 square miles of water fall within its lines, according to Census mapping. Stuart serves as the county seat.
Counties next to Martin County
Martin County shares a border with the counties below. Each link has its own official map:
A note on accuracy
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.