Missouri · FIPS 29071 · County seat: Union
Franklin County, MO GIS & Parcel Viewer
Here is the direct link to the county parcel map covering Franklin County, MO: CAMAvision Maps for Franklin County. Below you'll find basic facts about the county, steps for using the viewer, and nearby counties.
Open the Franklin County parcel map ↗
Opens maps.camavision.com in a new tab. We link out and never embed or copy parcel data.
Franklin County at a glance
| Official map | CAMAvision Maps for Franklin County |
|---|---|
| Type | County-run map |
| Website | maps.camavision.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Union |
| Population | 106,404 (2023 Census Bureau estimate) |
| Land area | 923 sq mi |
| FIPS code | 29071 |
About the official source
This map is published by or for Franklin County itself, so it reflects the local parcel layer rather than a third-party copy. As of our October 2026 test, anyone could open it without signing in or paying.
Searching for a parcel, step by step
- Press the button above. This county's viewer runs on CAMAvision Maps; 42 counties in our directory use the same service.
- Find the search option and look up a property, or zoom in on the map.
- Click a lot to see its details.
- Check the toolbar for layers, measuring and printing.
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
Franklin County had an estimated 106,404 residents in 2023, according to the Census Bureau. With about 923 square miles of land, that works out to roughly 115 people per square mile. Among Missouri's 115 counties, it is the 12th largest by population. The county seat is Union.
Nearby parcel maps
Parcels close to the edge of Franklin County can fall in the next county over. Neighboring counties:
- Crawford County
- Gasconade County
- Jefferson County
- St. Charles County
- St. Louis County
- Warren County
- Washington County (state list)
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.