15 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Richmond | 1 | 5,921 | 6,021 | -0.3% | 963 | 6 | City |
| Richmond | 2 | 5,921 | 6,010 | -0.3% | 963 | 6 | City |
| Lawson | 3 | 2,519 | 2,539 | -0.16% | 850 | 3 | City |
| Lawson | 4 | 2,519 | 2,537 | -0.16% | 850 | 3 | City |
| Camden | 5 | 1,636 | 1,654 | -0.49% | 33 | 50 | Township |
| Camden | 6 | 1,636 | 1,650 | -0.49% | 33 | 50 | Township |
| Orrick | 7 | 736 | 755 | -0.54% | 519 | 1 | City |
| Orrick | 8 | 736 | 753 | -0.54% | 519 | 1 | City |
| Hardin | 9 | 551 | 566 | -0.54% | 857 | 1 | City |
| Hardin | 10 | 551 | 565 | -0.54% | 857 | 1 | City |
| Rayville | 11 | 303 | 229 | 7.45% | 921 | 0 | CDP |
| Henrietta | 12 | 272 | 276 | -0.37% | 456 | 1 | City |
| Henrietta | 13 | 272 | 275 | -0.37% | 456 | 1 | City |
| Camden | 14 | 177 | 175 | 0% | 398 | 0 | City |
| Camden | 15 | 177 | 175 | 0% | 398 | 0 | City |
Richmond is the largest city in Ray County, with a population of 5,921.
Camden is the smallest city in Ray County, with a population of 177.
There are 15 cities in Ray County, Missouri.