Lake County, Illinois
28 ZIP codes · 443.68 sq mi of land · FIPS 17097
| Population | 714,223 |
|---|---|
| State | Illinois |
| FIPS code | 17097 |
| Time zone | Central |
| Land area | 443.68 sq mi |
| Center (lat, long) | 42.1860, -87.8059 |
Area codes in this area
These are the area codes that most often serve Lake County (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Cities and towns (largest first)
Waukegan · 89,076Buffalo Grove · 42,891Mundelein · 31,915North Chicago · 30,643Gurnee · 30,510Highland Park · 30,398Vernon Hills · 26,876Zion · 24,600Grayslake · 20,929Libertyville · 20,525Lake Zurich · 19,832Deerfield · 19,518Lake Forest · 19,416Round Lake · 18,628Antioch · 14,859Wauconda · 14,027Fox LakeHighwoodInglesideIsland LakeLake BluffLake VillaLincolnshireRussellWadsworthGreat LakesWinthrop Harbor
ZIP codes in Lake County
60002 Antioch60015 Deerfield60020 Fox Lake60030 Grayslake60031 Gurnee60035 Highland Park60040 Highwood60041 Ingleside60042 Island Lake60044 Lake Bluff60045 Lake Forest60046 Lake Villa60047 Lake Zurich60048 Libertyville60060 Mundelein60061 Vernon Hills60064 North Chicago60069 Lincolnshire60073 Round Lake60075 Russell60083 Wadsworth60084 Wauconda60085 Waukegan60087 Waukegan60088 Great Lakes60089 Buffalo Grove60096 Winthrop Harbor60099 Zion
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.