How many counties in Massachusetts? All 14 listed
Quick answer
Massachusetts has 14 counties and county equivalents holding 6,992,395 residents. The most populous county in Massachusetts is Middlesex County with 1,622,896 residents; the smallest is Nantucket County. County boundaries divide the state's land area — measured in square miles by the Census Bureau — into the units used for property assessment, elections and local sales tax. The statewide sales tax base rate is 6.25% with no local add-ons.
All 14 counties
Ranked by population, Census 2019-2023 ACS 5-year estimates.
| County | Population | Median income | Median home value | Median rent |
|---|---|---|---|---|
| Middlesex County | 1,622,896 | $126,779 | $687,200 | $2,126 |
| Worcester County | 861,664 | $93,561 | $390,700 | $1,347 |
| Essex County | 807,258 | $99,431 | $584,000 | $1,673 |
| Suffolk County | 782,172 | $92,859 | $680,700 | $2,069 |
| Norfolk County | 724,540 | $126,497 | $649,400 | $2,072 |
| Bristol County | 578,436 | $84,198 | $421,800 | $1,181 |
| Plymouth County | 531,889 | $109,698 | $513,000 | $1,655 |
| Hampden County | 462,853 | $70,535 | $276,300 | $1,105 |
| Barnstable County | 230,073 | $94,452 | $575,900 | $1,596 |
| Hampshire County | 156,595 | $86,391 | $363,400 | $1,332 |
| Berkshire County | 128,047 | $72,565 | $283,800 | $1,042 |
| Franklin County | 70,922 | $72,584 | $303,400 | $1,169 |
| Dukes County | 20,751 | $102,348 | $1,104,100 | $1,371 |
| Nantucket County | 14,299 | $119,750 | $1,387,000 | $2,070 |
Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year
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