18 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Central City | 1 | 3,134 | 3,024 | 0.71% | 1,287 | 2.44 | City |
| Vieregg township | 2 | 777 | 764 | 0.52% | 17 | 45.45 | Township |
| Loup township | 3 | 740 | 735 | 0.14% | 13 | 56.03 | Township |
| Lone Tree township | 4 | 646 | 632 | 0.62% | 10 | 65.68 | Township |
| Clarksville township | 5 | 639 | 639 | 0% | 9 | 70.84 | Township |
| Silver Creek township | 6 | 542 | 533 | 0.56% | 13 | 42.90 | Township |
| Chapman township | 7 | 526 | 506 | 0.38% | 15 | 36.20 | Township |
| Chapman township | 8 | 498 | 487 | 0.61% | 16 | 30.76 | Township |
| Palmer | 9 | 439 | 441 | 0% | 822 | 0.53 | Village |
| Clarks | 10 | 338 | 345 | -0.29% | 1,076 | 0.31 | Village |
| Prairie Creek township | 11 | 338 | 329 | 0.9% | 6 | 56.48 | Township |
| Silver Creek | 12 | 322 | 319 | 0.31% | 1,167 | 0.28 | Village |
| Chapman | 13 | 266 | 260 | 0.38% | 596 | 0.45 | Village |
| Midland township | 14 | 199 | 198 | 0% | 6 | 36.15 | Township |
| Silver Creek township | 15 | 119 | 116 | 0.85% | 3 | 35.89 | Township |
| Prairie Island township | 16 | 83 | 82 | 0% | 7 | 12.20 | Township |
| Archer | 17 | 66 | 45 | 6.45% | 66 | 1 | CDP |
| Central township | 18 | 64 | 64 | 0% | 4 | 15.68 | Township |
Central City is the largest city in Merrick County, with a population of 3,134.
Central township is the smallest city in Merrick County.
There are 18 cities in Merrick County, Nebraska.