Techny
Ghost town · Cook County, Illinois

Techny is a ghost town in Cook County, Illinois. It is one of 6 former communities in Cook County on the federal names register. That ranks the county 7th among the 78 Illinois counties with a vanished settlement on record.
The U.S. Geological Survey lists Techny as a historical populated place on the Park Ridge topographic quadrangle: the name is no longer in official use for a community, whether the settlement was abandoned, absorbed into a neighbouring town or renamed. The recorded location is 42.1161° N, 87.8223° W.
Key facts
| USGS quadrangle | Park Ridge |
|---|---|
| Elevation | 640 ft |
| Nearest living town | Northbrook, IL |
| Distance to it | 1.1 miles |
| GNIS feature ID | 1781997 |
| Coordinates | 42.11614, -87.82229 |
What's there now
Techny is no longer a community in its own right. The nearest living town is Northbrook, IL (population 34,642), about 1.1 miles away in a straight line, and the site sits at roughly 640 feet above sea level. Much of the land around former townsites is private; check access before you visit.
Nearby places
- Grosse Point Lightlighthouse · Cook County · 8.3 mi
- Robert Parker Coffin Bridgecovered bridge · Lake County · 10 mi
- Lincoln Squareghost town · Cook County · 11.9 mi
- Wilson Avenue Crib Lightlighthouse · Cook County · 15.8 mi
- Waukegan Harbor Lightlighthouse · Lake County · 16.9 mi
- William E. Dever Crib Lightlighthouse · Cook County · 17.3 mi
- Chicago Harbor Southeast Guidewall Lightlighthouse · Cook County · 19.4 mi
- Chicago Harbor Lightlighthouse · Cook County · 19.7 mi
- Four Mile Crib Lightlighthouse · Cook County · 22 mi
- Stateway Gardensghost town · Cook County · 22.2 mi
- Robert Taylor Homesghost town · Cook County · 23.3 mi
- Mount Forestghost town · Cook County · 25.9 mi
Questions
Where is Techny?
Techny is in Cook County, Illinois, at 42.1161, -87.8223.
How many ghost towns are in Cook County?
Cook County, Illinois has 6 ghost towns on record at Wayfarrow.
- USGS Geographic Names Information System (Domestic Names) — GNIS Domestic Names, feature record (public-domain)
- U.S. Census Bureau TIGER/Line and ACS — Census Gazetteer + ACS 5-year population (public-domain)
Facts marked "approximately" carry an uncertain date in the source. Text on this page is generated from the sources above; no encyclopedia prose is copied. Last updated 2026-11-05.