| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Norwalk | 1 | 17,231 | 17,030 | 0.23% | 1,944 | 9 | City |
| Bellevue | 2 | 8,134 | 8,241 | -0.25% | 1,327 | 6 | City |
| Willard | 3 | 6,109 | 6,211 | -0.34% | 1,706 | 4 | City |
| New London | 4 | 2,356 | 2,417 | -0.51% | 1,068 | 2 | Village |
| Plymouth | 5 | 1,698 | 1,717 | -0.24% | 680 | 2 | Village |
| Greenwich | 6 | 1,377 | 1,399 | -0.36% | 908 | 2 | Village |
| Monroeville | 7 | 1,279 | 1,299 | -0.31% | 914 | 1 | Village |
| Wakeman | 8 | 1,025 | 990 | 0.59% | 1,242 | 1 | Village |
| North Fairfield | 9 | 441 | 451 | -0.45% | 955 | 0 | Village |
Norwalk is the largest city in Huron County, with a population of 17,231.
North Fairfield is the smallest city in Huron County, with a population of 441.
There are 9 cities in Huron County, Ohio.