2nd most populous of 14
With 881,248 residents in 2024, Worcester County ranks 2nd by population among Massachusetts's 14 counties and is home to 12.3% of the state's residents.

Worcester County has the 3rd lowest share of college graduates in Massachusetts (39.7% of adults) and the 4th largest economy ($60.9 billion GDP).
Worcester County is home to 881,248 people (2024 estimate) on 1,511 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 | 881,248 | 2024 · U.S. Census Bureau |
| Population, 2010 Census | 798,552 | 2010 · U.S. Census Bureau |
| Population, 2000 | 752,512 | July 1, 2000 · Census intercensal |
| Change since 2000 | +17.1% | 2000–2024 · Census |
| International migration | +9,470 | 2024 · Census Vintage 2024 |
| Domestic migration | −1,804 | 2024 · Census Vintage 2024 |
| Birth rate | 9.6 per 1,000 | 2024 · calculated |
| Death rate | 8.8 per 1,000 | 2024 · calculated |
| Population rank in Massachusetts | 2nd of 14 | 2024 · calculated |
| Per capita personal income | $71,909 | BEA, 2024 · official |
| Gross domestic product | $60.9 billion | BEA, current dollars, 2024 · official |
| Median household income | $95,939 | ACS 2020–2024 5-year · official |
| Poverty rate | 10.3% | ACS 2020–2024 5-year · official |
| Bachelor’s degree or higher | 39.7% | Age 25+, ACS 2020–2024 5-year · official |
| Foreign-born residents | 14.5% | ACS 2020–2024 5-year · official |
| Median home value | $423,700 | ACS 2020–2024 5-year · official |
| Median gross rent | $1,426/month | ACS 2020–2024 5-year · official |
| Median age | 40.2 years | ACS 2020–2024 5-year · official |
| Households | 335,826 | ACS 2020–2024 5-year · official |
| Owner-occupied homes | 65.8% | ACS 2020–2024 5-year · official |
Comparable indicators for Worcester County, Massachusetts and the United States.
| Indicator | County | Massachusetts | U.S. | Reference |
|---|---|---|---|---|
| Population change 2020–2024 | +2.2% | +1.5% | +2.6% | Census Vintage 2024 |
| Birth rate (per 1,000) | 9.6 | 9.5 | 10.6 | 2024 |
| Death rate (per 1,000) | 8.8 | 8.6 | 9.1 | 2024 |
| Net migration rate (per 1,000) | 8.7 | 8.8 | 8.2 | 2024 |
| Population density (/mi²) | 583.3 | 914.8 | 96.3 | 2024 |
| Per capita personal income | $71,909 | $93,607 | $73,204 | BEA, 2024 |
| Median household income | $95,939 | $103,960 | $80,734 | ACS 2020–2024 5-year |
| Poverty rate | 10.3% | 10.0% | 12.5% | ACS 2020–2024 5-year |
| Bachelor’s degree or higher | 39.7% | 47.3% | 35.7% | Age 25+, ACS 2020–2024 5-year |
| Foreign-born residents | 14.5% | 18.0% | 14.1% | ACS 2020–2024 5-year |
| Median home value | $423,700 | $562,100 | $332,700 | ACS 2020–2024 5-year |
| Median gross rent | $1,426/month | $1,762/month | $1,413/month | ACS 2020–2024 5-year |
| Median age | 40.2 years | 40.0 years | 38.9 years | ACS 2020–2024 5-year |
| Owner-occupied homes | 65.8% | 62.5% | 65.2% | ACS 2020–2024 5-year |
1 city · choose how to order them
With 881,248 residents in 2024, Worcester County ranks 2nd by population among Massachusetts's 14 counties and is home to 12.3% of the state's residents.
Its population went from 752,512 in 2000 to 881,248 in 2024, a change of +17.1%, compared with +12.2% for Massachusetts as a whole.
In the year to July 2024 the county recorded 8,460 births and 7,722 deaths, so births outnumbered deaths by 738.
Annual Census estimates since 2000 put the county's highest population in 2024, at 881,248.
Worcester County has about 583.3 residents per square mile of land, ranking 9th of 14 counties; Massachusetts averages 914.8.
With a median household income of $95,939 (ACS 2020–2024 5-year), the county ranks 7th of 14 Massachusetts counties; the state median is $103,960.
Its economy produced $60.9 billion of GDP in 2024 (BEA), 4th largest among 14 Massachusetts counties.
Real GDP grew 1.8% in 2024, adjusted for inflation (BEA, chained 2017 dollars).