225 cities and towns
| Abbreviation | 20 |
| State Population | 3,193,333 |
| # | City | Population | Median Income | Home Value | Median Rent | Median Age |
|---|---|---|---|---|---|---|
| 151 | Jerumenha | 4,497 | N/A | N/A | N/A | 34.3 |
| 152 | Jatobá do Piauí | 4,494 | N/A | N/A | N/A | 34.3 |
| 153 | Morro Cabeça no Tempo | 4,458 | N/A | N/A | N/A | 34.3 |
| 154 | Jurema | 4,425 | N/A | N/A | N/A | 34.3 |
| 155 | Flores do Piauí | 4,414 | N/A | N/A | N/A | 34.3 |
| 156 | Curralinhos | 4,413 | N/A | N/A | N/A | 34.3 |
| 157 | Francisco Ayres | 4,412 | N/A | N/A | N/A | 34.3 |
| 158 | São Lourenço do Piauí | 4,410 | N/A | N/A | N/A | 34.3 |
| 159 | São João da Varjota | 4,383 | N/A | N/A | N/A | 34.3 |
| 160 | Eliseu Martins | 4,377 | N/A | N/A | N/A | 34.3 |
| 161 | São Braz do Piauí | 4,358 | N/A | N/A | N/A | 34.3 |
| 162 | Guaribas | 4,276 | N/A | N/A | N/A | 34.3 |
| 163 | Coronel José Dias | 4,250 | N/A | N/A | N/A | 34.3 |
| 164 | Jardim do Mulato | 4,180 | N/A | N/A | N/A | 34.3 |
| 165 | Riacho Frio | 4,165 | N/A | N/A | N/A | 34.3 |
| 166 | Nova Santa Rita | 4,147 | N/A | N/A | N/A | 34.3 |
| 167 | Socorro do Piauí | 4,141 | N/A | N/A | N/A | 34.3 |
| 168 | Passagem Franca do Piauí | 4,135 | N/A | N/A | N/A | 34.3 |
| 169 | Santana do Piauí | 4,125 | N/A | N/A | N/A | 34.3 |
| 170 | Coivaras | 4,117 | N/A | N/A | N/A | 34.3 |
| 171 | Bela Vista do Piauí | 4,091 | N/A | N/A | N/A | 34.3 |
| 172 | Paes Landim | 4,088 | N/A | N/A | N/A | 34.3 |
| 173 | Bocaina | 4,078 | N/A | N/A | N/A | 34.3 |
| 174 | Domingos Mourão | 4,075 | N/A | N/A | N/A | 34.3 |
| 175 | Wall Ferraz | 4,059 | N/A | N/A | N/A | 34.3 |
| 176 | Ribeira do Piauí | 4,055 | N/A | N/A | N/A | 34.3 |
| 177 | Barra dAlcântara | 3,995 | N/A | N/A | N/A | 34.3 |
| 178 | Capitão Gervásio Oliveira | 3,974 | N/A | N/A | N/A | 34.3 |
| 179 | Brejo do Piauí | 3,904 | N/A | N/A | N/A | 34.3 |
| 180 | Pau d'Arco do Piauí | 3,880 | N/A | N/A | N/A | 34.3 |
| 181 | Paquetá | 3,813 | N/A | N/A | N/A | 34.3 |
| 182 | Santo Inácio do Piauí | 3,646 | N/A | N/A | N/A | 34.3 |
| 183 | Pavussu | 3,628 | N/A | N/A | N/A | 34.3 |
| 184 | Hugo Napoleão | 3,518 | N/A | N/A | N/A | 34.3 |
| 185 | Santa Cruz dos Milagres | 3,435 | N/A | N/A | N/A | 34.3 |
| 186 | Belém do Piauí | 3,423 | N/A | N/A | N/A | 34.3 |
| 187 | Canavieira | 3,414 | N/A | N/A | N/A | 34.3 |
| 188 | São José do Peixe | 3,297 | N/A | N/A | N/A | 34.3 |
| 189 | Barreiras do Piauí | 3,264 | N/A | N/A | N/A | 34.3 |
| 190 | Sebastião Barros | 3,202 | N/A | N/A | N/A | 34.3 |
| 191 | Vera Mendes | 3,185 | N/A | N/A | N/A | 34.3 |
| 192 | Antônio Almeida | 3,152 | N/A | N/A | N/A | 34.3 |
| 193 | Cajazeiras do Piauí | 3,108 | N/A | N/A | N/A | 34.3 |
| 194 | Prata do Piauí | 3,042 | N/A | N/A | N/A | 34.3 |
| 195 | João Costa | 2,970 | N/A | N/A | N/A | 34.3 |
| 196 | Tamboril do Piauí | 2,949 | N/A | N/A | N/A | 34.3 |
| 197 | São Gonçalo do Gurguéia | 2,947 | N/A | N/A | N/A | 34.3 |
| 198 | Lagoinha do Piauí | 2,939 | N/A | N/A | N/A | 34.3 |
| 199 | Vila Nova do Piauí | 2,935 | N/A | N/A | N/A | 34.3 |
| 200 | Francisco Macedo | 2,929 | N/A | N/A | N/A | 34.3 |