6th most populous of 75
With 130,035 residents in 2024, Sebastian County ranks 6th by population among Arkansas's 75 counties and is home to 4.2% of the state's residents.

Sebastian County has the 4th largest economy in Arkansas ($9.3 billion GDP) and the 5th largest immigrant share (9.0% foreign-born).
Sebastian County is home to 130,035 people (2024 estimate) on 531 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.
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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 | 130,035 | 2024 · U.S. Census Bureau |
| Population, 2010 Census | 125,744 | 2010 · U.S. Census Bureau |
| Population, 2000 | 115,578 | July 1, 2000 · Census intercensal |
| Change since 2000 | +12.5% | 2000–2024 · Census |
| International migration | +182 | 2024 · Census Vintage 2024 |
| Domestic migration | +535 | 2024 · Census Vintage 2024 |
| Birth rate | 12.2 per 1,000 | 2024 · calculated |
| Death rate | 11.3 per 1,000 | 2024 · calculated |
| Population rank in Arkansas | 6th of 75 | 2024 · calculated |
| Per capita personal income | $51,559 | BEA, 2024 · official |
| Gross domestic product | $9.3 billion | BEA, current dollars, 2024 · official |
| Median household income | $57,790 | ACS 2020–2024 5-year · official |
| Poverty rate | 16.0% | ACS 2020–2024 5-year · official |
| Bachelor’s degree or higher | 23.3% | Age 25+, ACS 2020–2024 5-year · official |
| Foreign-born residents | 9.0% | ACS 2020–2024 5-year · official |
| Median home value | $176,200 | ACS 2020–2024 5-year · official |
| Median gross rent | $886/month | ACS 2020–2024 5-year · official |
| Median age | 38.0 years | ACS 2020–2024 5-year · official |
| Households | 52,181 | ACS 2020–2024 5-year · official |
| Owner-occupied homes | 61.4% | ACS 2020–2024 5-year · official |
Comparable indicators for Sebastian County, Arkansas and the United States.
| Indicator | County | Arkansas | U.S. | Reference |
|---|---|---|---|---|
| Population change 2020–2024 | +1.8% | +2.6% | +2.6% | Census Vintage 2024 |
| Birth rate (per 1,000) | 12.2 | 11.4 | 10.6 | 2024 |
| Death rate (per 1,000) | 11.3 | 11.6 | 9.1 | 2024 |
| Net migration rate (per 1,000) | 5.5 | 6.4 | 8.2 | 2024 |
| Population density (/mi²) | 244.8 | 59.4 | 96.3 | 2024 |
| Per capita personal income | $51,559 | $59,320 | $73,204 | BEA, 2024 |
| Median household income | $57,790 | $60,773 | $80,734 | ACS 2020–2024 5-year |
| Poverty rate | 16.0% | 16.0% | 12.5% | ACS 2020–2024 5-year |
| Bachelor’s degree or higher | 23.3% | 25.7% | 35.7% | Age 25+, ACS 2020–2024 5-year |
| Foreign-born residents | 9.0% | 5.4% | 14.1% | ACS 2020–2024 5-year |
| Median home value | $176,200 | $188,000 | $332,700 | ACS 2020–2024 5-year |
| Median gross rent | $886/month | $947/month | $1,413/month | ACS 2020–2024 5-year |
| Median age | 38.0 years | 38.5 years | 38.9 years | ACS 2020–2024 5-year |
| Owner-occupied homes | 61.4% | 66.4% | 65.2% | ACS 2020–2024 5-year |
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With 130,035 residents in 2024, Sebastian County ranks 6th by population among Arkansas's 75 counties and is home to 4.2% of the state's residents.
Its population went from 115,578 in 2000 to 130,035 in 2024, a change of +12.5%, compared with +15.3% for Arkansas as a whole.
In the year to July 2024 the county recorded 1,582 births and 1,468 deaths, so births outnumbered deaths by 114.
Annual Census estimates since 2000 put the county's highest population in 2024, at 130,035.
Sebastian County has about 244.8 residents per square mile of land, ranking 4th of 75 counties; Arkansas averages 59.4.
With a median household income of $57,790 (ACS 2020–2024 5-year), the county ranks 13th of 75 Arkansas counties; the state median is $60,773.
Its economy produced $9.3 billion of GDP in 2024 (BEA), 4th largest among 75 Arkansas counties.
Real GDP grew 2.2% in 2024, adjusted for inflation (BEA, chained 2017 dollars).