There are 19 cities in Lake County, Indiana.
City | Rank | State | 2023 Population | 2020 Census | Annual Change | Density (mi²) | Area (mi²) |
|---|---|---|---|---|---|---|---|
| Hammond | 1 | Indiana | 75,753 | 77,607 | -0.8% | 3,331 | 22.74 |
| Gary | 2 | Indiana | 67,281 | 68,853 | -0.77% | 1,353 | 49.73 |
| Merrillville | 3 | Indiana | 36,390 | 36,591 | -0.18% | 1,096 | 33.19 |
| Crown Point | 4 | Indiana | 34,842 | 34,511 | 0.32% | 1,954 | 17.83 |
| Schererville | 5 | Indiana | 29,667 | 29,550 | 0.13% | 1,977 | 15.01 |
| Hobart | 6 | Indiana | 29,227 | 29,669 | -0.5% | 1,115 | 26.22 |
| East Chicago | 7 | Indiana | 25,784 | 26,258 | -0.6% | 1,830 | 14.09 |
| St. John | 8 | Indiana | 23,595 | 20,449 | 4.88% | 1,896 | 12.45 |
| Munster | 9 | Indiana | 23,495 | 23,895 | -0.56% | 3,114 | 7.54 |
| Highland | 10 | Indiana | 23,326 | 23,847 | -0.73% | 3,342 | 6.98 |
| Dyer | 11 | Indiana | 16,261 | 16,532 | -0.55% | 2,604 | 6.24 |
| Griffith | 12 | Indiana | 16,106 | 16,445 | -0.69% | 2,082 | 7.74 |
| Cedar Lake | 13 | Indiana | 15,872 | 14,137 | 3.94% | 1,877 | 8.46 |
| Lake Station | 14 | Indiana | 12,976 | 13,253 | -0.7% | 1,562 | 8.31 |
| Lowell | 15 | Indiana | 11,441 | 10,745 | 2.11% | 1,833 | 6.24 |
| Winfield | 16 | Indiana | 8,045 | 7,214 | 3.7% | 650 | 12.38 |
| Whiting | 17 | Indiana | 4,525 | 4,546 | -0.15% | 2,515 | 1.80 |
| New Chicago | 18 | Indiana | 1,954 | 1,993 | -0.66% | 2,899 | 0.67 |
| Schneider | 19 | Indiana | 255 | 267 | -1.54% | 327 | 0.78 |
Hammond is the largest city in Lake County.
Schneider is the smallest city in Lake County.
There are 19 cities in Lake County, Indiana.