Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Lakeland | 1 | 125,056 | 113,888 | 2.28% | 1,879 | 66.6 | City |
| Poinciana | 2 | 71,997 | 68,280 | 1.9% | 1,002 | 71.9 | CDP |
| Winter Haven | 3 | 59,270 | 50,625 | 3.78% | 1,799 | 32.9 | City |
| Haines City | 4 | 40,379 | 27,949 | 8.34% | 1,711 | 23.6 | City |
| Auburndale | 5 | 21,432 | 15,746 | 7.1% | 1,581 | 13.6 | City |
| Bartow | 6 | 20,934 | 19,532 | 1.7% | 450 | 46.5 | City |
| Davenport | 7 | 16,850 | 9,721 | 11.83% | 3,831 | 4.4 | City |
| Lake Wales | 8 | 16,811 | 16,291 | 0.78% | 886 | 19.0 | City |
| Highland City | 9 | 12,726 | 11,392 | 1.07% | 1,614 | 7.9 | CDP |
| Medulla | 10 | 11,766 | 11,336 | 1.78% | 2,101 | 5.6 | CDP |
| Lakeland Highlands | 11 | 11,313 | 11,575 | 0.17% | 2,326 | 4.9 | CDP |
| Cypress Gardens | 12 | 9,821 | 10,040 | 0.66% | 2,847 | 3.4 | CDP |
| Lake Alfred | 13 | 7,626 | 6,542 | 3.69% | 776 | 9.8 | City |
| Inwood | 14 | 7,162 | 7,196 | 0.76% | 3,793 | 1.9 | CDP |
| Willow Oak | 15 | 6,910 | 7,168 | 0.17% | 2,215 | 3.1 | CDP |
| Loughman | 16 | 6,899 | 6,762 | 4.58% | 1,986 | 3.5 | CDP |
| Jan Phyl Village | 17 | 6,348 | 6,195 | 0.89% | 1,388 | 4.6 | CDP |
| Dundee | 18 | 6,300 | 5,271 | 4.25% | 570 | 11.1 | Town |
| Crystal Lake | 19 | 6,137 | 6,211 | 0.74% | 2,403 | 2.6 | CDP |
| Kathleen | 20 | 5,762 | 6,402 | -0.69% | 801 | 7.2 | CDP |
| Fort Meade | 21 | 5,326 | 5,100 | 1.06% | 651 | 8.2 | City |
| Fussels Corner | 22 | 4,958 | 4,780 | -0.86% | 922 | 5.4 | CDP |
| Combee Settlement | 23 | 4,764 | 6,173 | -1.2% | 2,411 | 2.0 | CDP |
| Eagle Lake | 24 | 4,538 | 3,062 | 8.85% | 1,747 | 2.6 | City |
| Mulberry | 25 | 4,473 | 3,964 | 2.92% | 658 | 6.8 | City |
| Wahneta | 26 | 4,292 | 3,988 | -1.31% | 1,887 | 2.3 | CDP |
| Frostproof | 27 | 3,451 | 3,217 | 1.71% | 303 | 11.4 | City |
| Alturas | 28 | 3,339 | 3,778 | -1.79% | 62 | 54.0 | CDP |
| Grenelefe | 29 | 3,202 | 3,073 | 3.32% | 753 | 4.3 | CDP |
| Polk City | 30 | 3,116 | 2,764 | 2.91% | 692 | 4.5 | Town |
| Crooked Lake Park | 31 | 2,129 | 1,591 | 1.38% | 3,099 | 0.7 | CDP |
| Lake Hamilton | 32 | 1,673 | 1,552 | 1.83% | 536 | 3.1 | Town |
| Babson Park | 33 | 1,024 | 1,451 | -2.2% | 672 | 1.5 | CDP |
| Indian Lake Estates | 34 | 784 | 686 | 7.69% | 72 | 10.8 | CDP |
| Bradley Junction | 35 | 752 | 702 | 0.53% | 357 | 2.1 | CDP |
| Hillcrest Heights | 36 | 282 | 250 | 2.92% | 1,763 | 0.2 | Town |
| Homeland | 37 | 259 | 231 | -2.63% | 609 | 0.4 | CDP |
| Waverly | 38 | 186 | 734 | -18.42% | 129 | 1.4 | CDP |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Lakeland is the largest city in Polk County.
Waverly is the smallest city in Polk County.
There are 38 cities in Polk County, Florida.