Missouri · FIPS 29219 · County seat: Warrenton
Warren County, MO GIS & Parcel Viewer
Parcel lookups for Warren County start at the Warren County IntegrityGIS map. This page gives you that official link, notes on how the viewer works, and links to the counties next door.
Open the Warren County parcel map ↗
Opens warrengis.integritygis.com in a new tab. We link out and never embed or copy parcel data.
Map and county facts
| Official map | Warren County IntegrityGIS map |
|---|---|
| Type | County-run map |
| Website | warrengis.integritygis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Warrenton |
| Population | 37,806 (2023 Census Bureau estimate) |
| Land area | 429 sq mi |
| FIPS code | 29219 |
Who runs this map
It is a county-level map: Warren County 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.
Finding a property on this map
- Open the official link; the map loads with the county outline and a row of tool tabs across the top.
- When the disclaimer window appears, click Accept to start using the map.
- Zoom toward the property with the + button or your mouse wheel, or use the search field in the upper right corner.
- Select a lot to see the record the county publishes. The I want to... menu and the Tasks tab hold extra tools such as bookmarks and printing.
Rural addresses don't always geocode well. When that happens, zoom in by hand and click the parcel, or search by owner name.
About Warren County
Census Bureau figures put Warren County at about 37,806 people (2023 estimate) on roughly 429 square miles of land, which is about 88 residents per square mile. That makes it number 32 out of 115 Missouri counties by population. Warrenton serves as the county seat.
Counties next to Warren County
Parcels close to the edge of Warren County can fall in the next county over. Neighboring counties:
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.