12 cities and towns
| Abbreviation | 20 |
| State Population | 27,790 |
| # | City | Population | Median Income | Home Value | Median Rent | Median Age |
|---|---|---|---|---|---|---|
| 1 | Viljandi | 17,407 | N/A | N/A | N/A | 42.4 |
| 2 | Karksi-Nuia | 1,554 | N/A | N/A | N/A | 42.4 |
| 3 | Viiratsi | 1,332 | N/A | N/A | N/A | 42.4 |
| 4 | Võhma | 1,280 | N/A | N/A | N/A | 42.4 |
| 5 | Suure-Jaani | 1,173 | N/A | N/A | N/A | 42.4 |
| 6 | Abja-Paluoja | 1,057 | N/A | N/A | N/A | 42.4 |
| 7 | Mustla | 818 | N/A | N/A | N/A | 42.4 |
| 8 | Mõisaküla | 745 | N/A | N/A | N/A | 42.4 |
| 9 | Ramsi | 732 | N/A | N/A | N/A | 42.4 |
| 10 | Olustvere | 647 | N/A | N/A | N/A | 42.4 |
| 11 | Karksi | 528 | N/A | N/A | N/A | 42.4 |
| 12 | Vana-Võidu | 517 | N/A | N/A | N/A | 42.4 |