Indiana · FIPS 18001 · County seat: Decatur
Adams County, IN GIS & Parcel Viewer
Parcel lookups for Adams County start at the Adams County parcel map. This page gives you that official link, notes on how the viewer works, and links to the counties next door.
Open the Adams County parcel map ↗
Opens adamsingis.adams.in.us in a new tab. We link out and never embed or copy parcel data.
Adams County at a glance
| Official map | Adams County parcel map |
|---|---|
| Type | County-run map |
| Website | adamsingis.adams.in.us |
| Access | Free, no login (checked Oct 2026) |
| County seat | Decatur |
| Population | 36,288 (2023 Census Bureau estimate) |
| Land area | 339 sq mi |
| FIPS code | 18001 |
About the official source
It is a county-level map: Adams County 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.
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.
Rural addresses don't always geocode well. When that happens, zoom in by hand and click the parcel, or search by owner name.
Adams County by the numbers
Census Bureau figures put Adams County at about 36,288 people (2023 estimate) on roughly 339 square miles of land, which is about 107 residents per square mile. That makes it number 43 out of 92 Indiana counties by population. Its county seat is Decatur.
Nearby parcel maps
Adams County shares a border with the counties below. Each link has its own official map:
Before you rely on the lines
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.