Hamilton County, Indiana
13 ZIP codes · 394.39 sq mi of land · FIPS 18057
| Population | 365,056 |
|---|---|
| State | Indiana |
| FIPS code | 18057 |
| Time zone | Eastern |
| Land area | 394.39 sq mi |
| Center (lat, long) | 40.0535, -86.0217 |
Area codes in this area
These are the area codes that most often serve Hamilton 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)
Fishers · 102,337Carmel · 101,651Noblesville · 73,362Westfield · 54,677ArcadiaAtlantaCiceroSheridanIndianapolis
ZIP codes in Hamilton County
46030 Arcadia46031 Atlanta46032 Carmel46033 Carmel46034 Cicero46037 Fishers46038 Fishers46060 Noblesville46062 Noblesville46069 Sheridan46074 Westfield46280 Indianapolis46290 Indianapolis
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.