With 790,694 people, Polk County is a county in Florida. The population has risen by half since 2000, adding 306,770 people. Four-year degrees are less common here than nationally, at 23% of adults. The typical home is worth $266,500, having more than tripled since 2000. Owners hold 70% of the housing stock. The median household earns $65,978, about 20% below the national median.
At a glance
Lower income
median household income $65,978, below the US median
US median: $82,259
Mid-age
median age 39.5
US median: 38.9
Less educated
23% hold a bachelor's degree
US average: 36%
Less affordable
home values up 110%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Polk County
What changed most since 1990
Hispanic share3.7% → 29.2%(+25.4 pts)US over the same years: +9.9 pts
White share82.1% → 50.8%(−31.3 pts)US over the same years: −17.8 pts
Population405,382 → 790,694(+95%)US over the same years: +35%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)22%(9,755)
US avg: 26.4%
Gulf War (1990s)20.3%(8,970)
US avg: 24.3%
Vietnam era33.5%(14,841)
US avg: 33.1%
Korean War4.4%(1,965)
US avg: 4.5%
World War II1.1%(481)
US avg: 1%
Share of the 44,258 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Polk County, decade by decade
Polk County population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
405,382
$60,520
$145,684
12.9%
38.3
2000
483,924
$65,645
$127,152
14.9%
51.9
2010
602,095
$63,219
$204,133
18.0%
66.4
2020
725,046
$62,462
$196,835
20.6%
77.4
2024
790,694
$65,978
$266,500
23.5%
79.4
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.