100 Largest ZIP Codes in the United States by Population in Lake County, Indiana
Explore the 100 largest ZIP codes in the United States ranked by population using U.S. Census demographic data. This page lists ZIP codes located in Lake County, Indiana.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 46307 | CROWN POINT | IN | 71,355 |
| 2 | 46410 | MERRILLVILLE | IN | 39,121 |
| 3 | 46342 | HOBART | IN | 32,049 |
| 4 | 46312 | EAST CHICAGO | IN | 26,363 |
| 5 | 46322 | HIGHLAND | IN | 23,794 |
| 6 | 46375 | SCHERERVILLE | IN | 23,740 |
| 7 | 46321 | MUNSTER | IN | 23,731 |
| 8 | 46323 | HAMMOND | IN | 23,447 |
| 9 | 46311 | DYER | IN | 23,074 |
| 10 | 46324 | HAMMOND | IN | 21,703 |
| 11 | 46356 | LOWELL | IN | 18,814 |
| 12 | 46373 | SAINT JOHN | IN | 17,741 |
| 13 | 46319 | GRIFFITH | IN | 17,626 |
| 14 | 46303 | CEDAR LAKE | IN | 16,859 |
| 15 | 46404 | GARY | IN | 16,851 |
| 16 | 46408 | GARY | IN | 15,368 |
| 17 | 46320 | HAMMOND | IN | 13,822 |
| 18 | 46394 | WHITING | IN | 12,117 |
| 19 | 46405 | LAKE STATION | IN | 11,547 |
| 20 | 46327 | HAMMOND | IN | 10,875 |
| 21 | 46403 | GARY | IN | 10,875 |
| 22 | 46407 | GARY | IN | 9,125 |
| 23 | 46406 | GARY | IN | 8,730 |
| 24 | 46409 | GARY | IN | 7,050 |
| 25 | 46402 | GARY | IN | 5,873 |
| 26 | 46376 | SCHNEIDER | IN | 204 |
| 27 | 46377 | SHELBY | IN | 66 |