6th most populous of 120
With 112,826 residents in 2024, Hardin County ranks 6th by population among Kentucky's 120 counties and is home to 2.5% of the state's residents.

Hardin County has the 7th largest economy in Kentucky ($7.3 billion GDP) and the 9th largest immigrant share (4.3% foreign-born).
Hardin County is home to 112,826 people (2024 estimate) on 624 square miles of land. This page brings together official U.S. Census Bureau population estimates since 2000, the components of change—births, deaths and migration—American Community Survey indicators on income, housing, poverty and education, BEA economic accounts and BLS unemployment.
Pick an indicator to see its long-run evolution.
U.S. Census Bureau: intercensal estimates 2000–2009, Vintage 2020 (2010–2019) and Vintage 2024 (2020–2024), July 1.
| Indicator | Value | Year and source |
|---|---|---|
| Population estimate | 112,826 | 2024 · U.S. Census Bureau |
| Population, 2010 Census | 105,543 | 2010 · U.S. Census Bureau |
| Population, 2000 | 92,919 | July 1, 2000 · Census intercensal |
| Change since 2000 | +21.4% | 2000–2024 · Census |
| International migration | +472 | 2024 · Census Vintage 2024 |
| Domestic migration | −118 | 2024 · Census Vintage 2024 |
| Birth rate | 11.5 per 1,000 | 2024 · calculated |
| Death rate | 10.9 per 1,000 | 2024 · calculated |
| Population rank in Kentucky | 6th of 120 | 2024 · calculated |
| Per capita personal income | $58,679 | BEA, 2024 · official |
| Gross domestic product | $7.3 billion | BEA, current dollars, 2024 · official |
| Median household income | $67,647 | ACS 2020–2024 5-year · official |
| Poverty rate | 13.1% | ACS 2020–2024 5-year · official |
| Bachelor’s degree or higher | 24.8% | Age 25+, ACS 2020–2024 5-year · official |
| Foreign-born residents | 4.3% | ACS 2020–2024 5-year · official |
| Median home value | $225,800 | ACS 2020–2024 5-year · official |
| Median gross rent | $971/month | ACS 2020–2024 5-year · official |
| Median age | 37.3 years | ACS 2020–2024 5-year · official |
| Households | 44,622 | ACS 2020–2024 5-year · official |
| Owner-occupied homes | 62.6% | ACS 2020–2024 5-year · official |
Comparable indicators for Hardin County, Kentucky and the United States.
| Indicator | County | Kentucky | U.S. | Reference |
|---|---|---|---|---|
| Population change 2020–2024 | +1.9% | +1.8% | +2.6% | Census Vintage 2024 |
| Birth rate (per 1,000) | 11.5 | 11.4 | 10.6 | 2024 |
| Death rate (per 1,000) | 10.9 | 11.6 | 9.1 | 2024 |
| Net migration rate (per 1,000) | 3.1 | 8.4 | 8.2 | 2024 |
| Population density (/mi²) | 180.8 | 116.2 | 96.3 | 2024 |
| Per capita personal income | $58,679 | $58,256 | $73,204 | BEA, 2024 |
| Median household income | $67,647 | $63,726 | $80,734 | ACS 2020–2024 5-year |
| Poverty rate | 13.1% | 16.1% | 12.5% | ACS 2020–2024 5-year |
| Bachelor’s degree or higher | 24.8% | 27.6% | 35.7% | Age 25+, ACS 2020–2024 5-year |
| Foreign-born residents | 4.3% | 4.7% | 14.1% | ACS 2020–2024 5-year |
| Median home value | $225,800 | $205,600 | $332,700 | ACS 2020–2024 5-year |
| Median gross rent | $971/month | $967/month | $1,413/month | ACS 2020–2024 5-year |
| Median age | 37.3 years | 39.1 years | 38.9 years | ACS 2020–2024 5-year |
| Owner-occupied homes | 62.6% | 68.3% | 65.2% | ACS 2020–2024 5-year |
With 112,826 residents in 2024, Hardin County ranks 6th by population among Kentucky's 120 counties and is home to 2.5% of the state's residents.
Its population went from 92,919 in 2000 to 112,826 in 2024, a change of +21.4%, compared with +13.3% for Kentucky as a whole.
In the year to July 2024 the county recorded 1,301 births and 1,230 deaths, so births outnumbered deaths by 71.
Annual Census estimates since 2000 put the county's highest population in 2024, at 112,826.
Hardin County has about 180.8 residents per square mile of land, ranking 16th of 120 counties; Kentucky averages 116.2.
With a median household income of $67,647 (ACS 2020–2024 5-year), the county ranks 18th of 120 Kentucky counties; the state median is $63,726.
Its economy produced $7.3 billion of GDP in 2024 (BEA), 7th largest among 120 Kentucky counties.
Real GDP fell 0.3% in 2024, adjusted for inflation (BEA, chained 2017 dollars).