1. DCEO
  2. Small Business Assistance

Locations for Your Business

LocationOne Information System (LOIS)

The Illinois Department of Commerce provides the LocationOne Information System (LOIS) for conducting searches for available commercial and industrial sites and building locations throughout Illinois.  Maintained in partnership with communities across the state, LocationOne is designed to address the specific site selection data requirements of businesses and their consultants.

To conduct a statewide or multi-regional search:
- Select Sites or Buildings

To search within a specific economic development region:
- Click a region on the map below

For information on communities where properties are located:
- Community Profiles (census data, largest employers, wages, taxes, housing, education, utilities, etc. on Illinois cities and counties)

For assistance, contact David Pierson 312.814.1346 or

For community representatives responsible for marketing their community, that would like to add their local information to LOIS, please view the LOIS Basic Training Webinar recording dated November 11, 2016 and then contact for a user ID.


Northwest RegionNorthern Stateline RegionNortheast RegionWest Central RegionNorth Central RegionEast Central RegionCentral RegionSouthwest RegionSouthEast RegionSouthern Region