| ZIP Codes: | 55 ZIP Codes (32 Standard, 22 PO Box, 1 Unique) [See All] |
| Area Codes: | 239 / 321 / 407 / 689 / 863 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:11:39 PM |
| Population: | 803,122 [See All] |
| FIPS: | 12105 |
| CBSA: | Lakeland-Winter Haven, FL |
| Land Area: | 2,139 sq mi |
| Water Area: | 207 sq mi |
| Coordinates: | 27.9961, -81.7426 |
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803,122 residents live across 55 ZIPs covering 2,139 sq mi, served by 30 distinct USPS-recognized cities.
Population moved from 622,434 to 802,354 from 2014 to 2024 — a +28.9% change. 30 ZIPs gained residents, 7 lost (and 1 held flat).
The county's wealthiest ZIP 33812 (Lakeland, $103,052 median) and poorest ZIP 33815 (Lakeland, $37,487) are 7.8 miles apart — a 2.7× income gap across local geography.
Median home values vary 9.5× across this county — from $39,500 in 33815 (Lakeland) to $373,700 in 33812 (Lakeland).
Density varies 44× across the county — from 41 people/sq mi in 33841 (Fort Meade) to 1,802 in 33815 (Lakeland).
Most of the decade's growth concentrated around Davenport — top growth ZIPs averaged +144.5% over the past ten years ( 33896 , 33837 and 33897 ).
Educational attainment ranges from 9.0% bachelor's+ in 33841 (Fort Meade) to 41.3% in 33813 (Lakeland) — the breadth of educational profiles across the area.
Within Florida, this is the #9 most populous of 67 counties and ranks #43 for median household income with the #7 fastest decade growth .
On the national stage, Polk County is the #81 most populous US county , and #63 for decade growth .
Hosts 1 single-entity Unique ZIP: 33888State Farm Ins .
Weighted by population, the typical household earns about $68,063 across the county — reflecting what a typical resident sees, not a simple ZIP average.
23.7% of adults age 25+ hold a bachelor's degree or higher (131,626 of 556,144 reporting). The most-educated ZIPs cluster around Lakeland.
32 Standard delivery, 22 PO Box only, 1 single-entity Unique ZIPs serve this county.
Polk County grew 29.0% over the past decade — concentrated in 5 high-growth ZIPs:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 33810 | Lakeland | Standard | 55,137 | $69,986 | 65.6 | 15.7% |
| 33844 | Haines City | Standard | 51,255 | $63,650 | 121.3 | 50.7% |
| 33837 | Davenport | Standard | 47,389 | $81,276 | 53.5 | 129.0% |
| 34759 | Kissimmee | Standard | 44,568 | $69,373 | 80.0 | 40.4% |
| 33880 | Winter Haven | Standard | 43,371 | $56,390 | 47.0 | 15.4% |
| 33823 | Auburndale | Standard | 41,779 | $71,485 | 43.7 | 42.3% |
| 33881 | Winter Haven | Standard | 40,808 | $57,024 | 31.0 | 31.8% |
| 33813 | Lakeland | Standard | 38,674 | $99,497 | 23.9 | 20.3% |
| 33884 | Winter Haven | Standard | 37,561 | $70,443 | 28.8 | 26.2% |
| 33801 | Lakeland | Standard | 35,394 | $53,061 | 21.1 | 4.2% |
| 33830 | Bartow | Standard | 33,740 | $63,918 | 133.3 | 28.4% |
| 33809 | Lakeland | Standard | 30,797 | $70,066 | 67.8 | 6.2% |
| 33897 | Davenport | Standard | 30,159 | $70,982 | 37.0 | 90.0% |
| 33811 | Lakeland | Standard | 29,472 | $90,263 | 28.1 | 42.5% |
| 33803 | Lakeland | Standard | 29,321 | $65,807 | 18.5 | 5.6% |
| 33805 | Lakeland | Standard | 28,751 | $62,661 | 32.8 | 15.3% |
| 33896 | Davenport | Standard | 26,731 | $74,668 | 28.2 | 214.6% |
| 33860 | Mulberry | Standard | 24,892 | $65,710 | 106.2 | 11.6% |
| 33898 | Lake Wales | Standard | 18,527 | $57,224 | 446.0 | 14.1% |
| 33812 | Lakeland | Standard | 16,169 | $103,052 | 10.2 | 18.2% |
| 33815 | Lakeland | Standard | 13,975 | $37,487 | 7.8 | -2.3% |
| 33868 | Polk City | Standard | 13,827 | $74,289 | 204.7 | 10.2% |
| 33853 | Lake Wales | Standard | 12,674 | $44,474 | 9.2 | 8.5% |
| 33859 | Lake Wales | Standard | 11,824 | $57,760 | 50.9 | 19.6% |
| 33843 | Frostproof | Standard | 11,220 | $50,503 | 149.7 | -7.4% |
| 33850 | Lake Alfred | Standard | 9,757 | $61,622 | 21.4 | 29.1% |
| 33841 | Fort Meade | Standard | 8,005 | $39,384 | 196.1 | -8.7% |
| 33838 | Dundee | Standard | 5,688 | $50,766 | 8.5 | 57.7% |
| 33839 | Eagle Lake | Standard | 4,561 | $70,000 | 4.1 | 53.5% |
| 33827 | Babson Park | Standard | 2,431 | $54,556 | 30.6 | -10.0% |
| 33851 | Lake Hamilton | PO Box | 1,212 | $62,284 | 0.0 | 35.0% |
| 33849 | Kathleen | Standard | 851 | — | 22.2 | 14.4% |
| 33854 | Lakeshore | PO Box | 781 | $29,250 | 0.2 | 787.5% |
| 33858 | Loughman | PO Box | 653 | $27,061 | 0.0 | — |
| 33847 | Homeland | PO Box | 442 | $67,955 | 0.1 | 87.3% |
| 33856 | Nalcrest | PO Box | 394 | $37,622 | 0.1 | -21.4% |
| 33877 | Waverly | PO Box | 159 | — | 0.0 | -54.2% |
| 33835 | Bradley | PO Box | 115 | — | 0.0 | — |
| 33867 | River Ranch | Standard | 43 | — | 4.5 | -87.5% |
| 33855 | Indian Lake Estates | PO Box | 15 | — | 4.0 | 0.0% |
| 33840 | Eaton Park | PO Box | 0 | — | 0.1 | — |
| 33888 | Winter Haven | Unique | — | — | 0.1 | — |
| 33807 | Lakeland | PO Box | — | — | 0.0 | — |
| 33846 | Highland City | PO Box | — | — | 0.0 | — |
| 33804 | Lakeland | PO Box | — | — | 0.0 | — |
| 33882 | Winter Haven | PO Box | — | — | 0.0 | — |
| 33883 | Winter Haven | PO Box | — | — | 0.0 | — |
| 33802 | Lakeland | PO Box | — | — | 0.0 | — |
| 33806 | Lakeland | PO Box | — | — | 0.0 | — |
| 33885 | Winter Haven | PO Box | — | — | 0.0 | — |
| 33820 | Alturas | PO Box | — | — | 0.0 | — |
| 33863 | Nichols | PO Box | — | — | 0.4 | — |
| 33831 | Bartow | PO Box | — | — | 0.0 | — |
| 33845 | Haines City | PO Box | — | — | 0.0 | — |
| 33836 | Davenport | PO Box | — | — | 0.0 | — |