Area Code 815
Illinois (IL) • Rockford, Joliet, Plainfield, Crystal Lake, Mchenry, Amboy, Ancona, Apple River • Central Time (CT)
What Stands Out
- •Coverage: 1.7M people across 263 ZIP codes.
- •Major cities: Rockford, Joliet, Plainfield.
Spotlight: Coverage
Snapshot highlights for area code 815.
Income
70th
Home values
52nd
Low poverty
48th