Illinois · FIPS 17117 · County seat: Carlinville
Macoupin County, IL GIS & Parcel Viewer
Here is the direct link to the county parcel map covering Macoupin County, IL: the Macoupin County BHA Maps viewer. Below you'll find basic facts about the county, steps for using the viewer, and nearby counties.
Open the Macoupin County parcel map ↗
Opens macoupin-il.bhamaps.com in a new tab. We link out and never embed or copy parcel data.
Map and county facts
| Official map | Macoupin County BHA Maps viewer |
|---|---|
| Type | County-run map |
| Website | macoupin-il.bhamaps.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Carlinville |
| Population | 44,018 (2023 Census Bureau estimate) |
| Land area | 863 sq mi |
| FIPS code | 17117 |
Where the parcel data comes from
It is a county-level map: Macoupin 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.
How to use the Macoupin County viewer
- Press the button above. This county's viewer runs on BHA Maps; 12 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.
Macoupin County by the numbers
Macoupin County had an estimated 44,018 residents in 2023, according to the Census Bureau. With about 863 square miles of land, that works out to roughly 51 people per square mile. By population it ranks 32nd of 102 counties in Illinois. The county seat is Carlinville.
Nearby parcel maps
Macoupin County shares a border with the counties below. Each link has its own official map:
Before you rely on the lines
Online parcel lines are drawn for tax and planning use. They can be off by several feet, so use a recorded plat or a licensed surveyor for fences, setbacks or a sale.