12 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Newbury township | 1 | 5,868 | 5,816 | 0.07% | 166 | 35.26 | Township |
| Eden township | 2 | 4,968 | 4,917 | 0.06% | 138 | 35.88 | Township |
| Clearspring township | 3 | 4,686 | 4,642 | 0.09% | 131 | 35.65 | Township |
| Clay township | 4 | 3,824 | 3,785 | 0.13% | 106 | 36.14 | Township |
| Johnson township | 5 | 3,633 | 3,598 | 0.11% | 109 | 33.25 | Township |
| Lagrange | 6 | 2,749 | 2,714 | 0.26% | 1,539 | 1.79 | Town |
| Lima township | 7 | 2,434 | 2,394 | 0.25% | 100 | 24.46 | Township |
| Topeka | 8 | 1,229 | 1,214 | 0.24% | 761 | 1.61 | Town |
| Springfield township | 9 | 1,153 | 1,128 | 0.35% | 32 | 35.59 | Township |
| Wolcottville | 10 | 1,038 | 1,013 | 0.48% | 1,025 | 1.01 | Town |
| Shipshewana | 11 | 859 | 849 | 0.23% | 630 | 1.36 | Town |
| Howe | 12 | 802 | 707 | 0% | 449 | 1.79 | CDP |
Newbury township is the largest city in LaGrange County, with a population of 5,868.
Howe is the smallest city in LaGrange County.
There are 12 cities in LaGrange County, Indiana.