20 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Lafayette | 1 | 72,005 | 70,763 | 0.35% | 2,371 | 30 | City |
| Fairfield | 2 | 53,800 | 53,139 | -0.22% | 1,962 | 27 | Township |
| West Lafayette | 3 | 46,756 | 44,664 | 0.9% | 3,448 | 14 | City |
| Wea | 4 | 34,945 | 34,130 | -0.02% | 973 | 36 | Township |
| Buck Creek | 5 | 11,266 | 9,346 | 7.25% | 314 | 36 | Township |
| Perry | 6 | 9,400 | 9,071 | 0.19% | 261 | 36 | Township |
| Lafayette | 7 | 8,599 | 8,135 | 1.8% | 330 | 26 | Township |
| Lafayette | 8 | 5,335 | 5,133 | 1.23% | 151 | 35 | Township |
| Lafayette | 9 | 4,448 | 4,252 | 1.11% | 129 | 35 | Township |
| Sheffield | 10 | 4,026 | 3,885 | 0.25% | 111 | 36 | Township |
| Lauramie | 11 | 2,643 | 2,540 | 0.27% | 49 | 54 | Township |
| Battle Ground | 12 | 1,919 | 1,844 | 0.79% | 1,880 | 1 | Town |
| Shadeland | 13 | 1,858 | 1,762 | 1.03% | 69 | 27 | Town |
| Union | 14 | 1,848 | 1,762 | 0.49% | 68 | 27 | Township |
| Wayne | 15 | 1,747 | 1,682 | 0.34% | 51 | 34 | Township |
| Dayton | 16 | 1,383 | 1,328 | 0.8% | 1,204 | 1 | Town |
| Lafayette | 17 | 1,217 | 1,192 | 0.25% | 42 | 29 | Township |
| Randolph | 18 | 1,002 | 968 | 0.3% | 33 | 30 | Township |
| Clarks Hill | 19 | 625 | 595 | 0.97% | 2,298 | 0 | Town |
| Jackson | 20 | 503 | 486 | 0.2% | 12 | 41 | Township |
Lafayette is the largest city in Tippecanoe County, with a population of 72,005.
Jackson is the smallest city in Tippecanoe County, with a population of 503.
There are 20 cities in Tippecanoe County, Indiana.