County demographics · Florida
Polk County, Florida demographics
Polk County, Florida (county FIPS 12105) has a median household income of $65,978 (±$1,143) and a total population of 790,694 in the American Community Survey 5-year estimates for 2020-2024.
Margins of error are at the 90% confidence level. The figures describe 2020-2024 (dollars in 2024 dollars), not the present. 45 ZIP Code Tabulation Areas overlap the county (Census 2020).
Data as of Oct 22, 2026 (Olympus publication) · Markdown version
- Values are ACS 5-year estimates for 2020-2024 (dollars in 2024 dollars), not current figures.
- ZCTA-county overlaps come from the Census 2020 relationship file and use 2020 counties, by land area; Connecticut uses its legacy counties, not the planning regions in ACS 2022+.
ACS 5-year estimates, 2020-2024
Census American Community Survey 5-year estimates for 2020-2024, with 90% margins of error as published by the Census Bureau.
| Metric | Estimate | Margin of error (90%) | ACS table |
|---|---|---|---|
| Total population | 790,694 | none (controlled estimate) | B01003 |
| Median age | 39.5 years | ±0.2 years | B01002 |
| Households | 289,425 | ±1,606 | B11001 |
| Median household income (inflation-adjusted to the final ACS year) | $65,978 | ±$1,143 | B19013 |
| Median value of owner-occupied housing units | $266,500 | ±$3,458 | B25077 |
| Median gross rent | $1,363 | ±$28 | B25064 |
| Owner-occupied share of occupied housing units | 70.5% | none (derived from several estimates) | B25003 (derived) |
| Renter-occupied share of occupied housing units | 29.5% | none (derived from several estimates) | B25003 (derived) |
| High school graduate or higher (age 25+) | 87.9% | none (derived from several estimates) | B15003 (derived) |
| Bachelor's degree or higher (age 25+) | 23.5% | none (derived from several estimates) | B15003 (derived) |
| Share of people below the poverty level | 14.5% | none (derived from several estimates) | B17001 (derived) |
| Unemployment rate (civilian labor force) | 4.8% | none (derived from several estimates) | B23025 (derived) |
- Dollar values are in 2024 inflation-adjusted dollars.
- Percentages' margins of error are in percentage points (pp).
Geography
| Measure | Value |
|---|---|
| County FIPS | 12105 |
| Land area | 1,798.24 sq mi |
| Water area | 212.18 sq mi |
| Population density | 440 per sq mi of land |
| Geography vintage | 2024 Gazetteer |
ZIP codes (ZCTAs) in this county
ZCTAs that overlap the county in the Census 2020 ZCTA to county relationship file, largest share of the county's land first.
| ZCTA | Share of county land | Share of ZCTA land | County is the ZCTA's primary county |
|---|---|---|---|
| 33898 | 14.6% | 88.7% | Yes |
| 33868 | 10.2% | 100% | Yes |
| 33841 | 9.4% | 100% | Yes |
| 33843 | 6.9% | 100% | Yes |
| 33830 | 6.7% | 100% | Yes |
| 33844 | 5.4% | 100% | Yes |
| 33860 | 5.4% | 98.7% | Yes |
| 33809 | 3.7% | 99.8% | Yes |
| 33837 | 2.9% | 100% | Yes |
| 34759 | 2.7% | 65.2% | Yes |
| 33810 | 2.6% | 73.4% | Yes |
| 33859 | 2.5% | 100% | Yes |
| 33897 | 2.3% | 99% | Yes |
| 33834 | 2.2% | 29.4% | |
| 33825 | 2% | 32.3% | |
| 33823 | 1.9% | 100% | Yes |
| 33880 | 1.8% | 100% | Yes |
| 33827 | 1.8% | 100% | Yes |
| 33811 | 1.5% | 100% | Yes |
| 33805 | 1.4% | 100% | Yes |
| 33884 | 1.4% | 100% | Yes |
| 33849 | 1.2% | 98.4% | Yes |
| 33881 | 1.2% | 100% | Yes |
| 33813 | 1.2% | 100% | Yes |
| 33801 | 1.1% | 100% | Yes |
| 33850 | 0.9% | 100% | Yes |
| 33803 | 0.9% | 100% | Yes |
| 33812 | 0.5% | 100% | Yes |
| 33853 | 0.5% | 100% | Yes |
| 33815 | 0.4% | 100% | Yes |
| 33838 | 0.4% | 100% | Yes |
| 33896 | 0.4% | 35.8% | |
| 33867 | 0.2% | 100% | Yes |
| 33547 | 0.2% | 2.3% | |
| 33839 | 0.2% | 100% | Yes |
| 33877 | 0.1% | 100% | Yes |
| 33855 | 0.1% | 100% | Yes |
| 33851 | 0.1% | 100% | Yes |
| 33847 | 0% | 100% | Yes |
| 33835 | 0% | 100% | Yes |
| 33858 | 0% | 100% | Yes |
| 34714 | 0% | 0.2% | |
| 33854 | 0% | 100% | Yes |
| 33856 | 0% | 100% | Yes |
| 33840 | 0% | 100% | Yes |
Sources
- American Community Survey 5-year estimates (Census Data API) — U.S. Census Bureau. ACS 5-year 2020-2024 (release acs5-2024:county), source date 2025-09-02. https://api.census.gov/data/2024/acs/acs5?get=NAME,B01003_001E,B01003_001M,B01002_001E,B01002_001M,B11001_001E,B11001_001M,B19013_001E,B19013_001M,B25077_001E,B25077_001M,B25064_001E,B25064_001M,B25003_001E,B25003_002E,B25003_003E,B15003_001E,B15003_017E,B15003_018E,B15003_019E,B15003_020E,B15003_021E,B15003_022E,B15003_023E,B15003_024E,B15003_025E,B17001_001E,B17001_002E,B23025_003E,B23025_005E&for=county:105&in=state:12
- Published by Olympus on Oct 22, 2026.
- Source data: U.S. Census Bureau. Works of the U.S. government are not subject to copyright in the United States.
- This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
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The same figures, with provenance on every value, from the API (free API key, reference) or from an AI agent through the Olympus MCP server.
curl -s "https://api.olympus.new-odyssey.com/v1/geo-demographics/counties/12105" -H "X-API-Key: $OLYMPUS_API_KEY"get_us_demographics {"county_fips":"12105"}