12 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Monett | 1 | 10,336 | 9,652 | 1.12% | 1,175 | 9 | City |
| Cassville | 2 | 3,277 | 3,186 | 0.46% | 957 | 3 | City |
| Purdy | 3 | 1,064 | 1,028 | 0.57% | 1,650 | 1 | City |
| Seligman | 4 | 971 | 809 | 2.86% | 779 | 1 | City |
| Exeter | 5 | 765 | 737 | 0.66% | 1,039 | 1 | City |
| Wheaton | 6 | 689 | 670 | 0.44% | 1,356 | 1 | City |
| Washburn | 7 | 420 | 404 | 0.72% | 467 | 1 | City |
| Butterfield | 8 | 411 | 380 | 1.23% | 888 | 0 | City |
| Emerald Beach | 9 | 231 | 206 | 1.76% | 323 | 1 | Village |
| McCord Bend | 10 | 231 | 215 | 1.32% | 788 | 0 | Village |
| Chain-O-Lakes | 11 | 104 | 101 | 0.97% | 1,238 | 0 | Village |
| Arrow Point | 12 | 79 | 75 | 1.28% | 414 | 0 | Village |
Monett is the largest city in Barry County, with a population of 10,336.
Arrow Point is the smallest city in Barry County, with a population of 79.
There are 12 cities in Barry County, Missouri.