Data / Rankings / Live births, July to June / Counties in Massachusetts

Counties in Massachusetts by births (July to June)

Middlesex County had the highest births (July to June) of 14 counties in 2021, at 15,593. Nantucket County had the lowest, at 147. The median was 4,932 and the figure for Massachusetts was 66,440. Source: the U.S. Census Bureau.

Highest15,593Middlesex County
Lowest147Nantucket County
Median4,93214 counties
Massachusetts66,440History

All counties, 2021

CSVChart (SVG)

Middlesex CountyMiddlesex County: 15,593 count15,593Worcester CountyWorcester County: 8,265 count8,265Essex CountyEssex County: 8,219 count8,219Suffolk CountySuffolk County: 8,070 count8,070Norfolk CountyNorfolk County: 6,883 count6,883Bristol CountyBristol County: 5,447 count5,447Plymouth CountyPlymouth County: 5,158 count5,158Hampden CountyHampden County: 4,705 count4,705Barnstable CountyBarnstable County: 1,417 count1,417Berkshire CountyBerkshire County: 977 count977Hampshire CountyHampshire County: 890 count890Franklin CountyFranklin County: 496 count496Dukes CountyDukes County: 173 count173Nantucket CountyNantucket County: 147 count147
count. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2021
count
1Middlesex County Estimated15,593
2Worcester County Estimated8,265
3Essex County Estimated8,219
4Suffolk County Estimated8,070
5Norfolk County Estimated6,883
6Bristol County Estimated5,447
7Plymouth County Estimated5,158
8Hampden County Estimated4,705
9Barnstable County Estimated1,417
10Berkshire County Estimated977
11Hampshire County Estimated890
12Franklin County Estimated496
13Dukes County Estimated173
14Nantucket County Estimated147

Other periods

About this ranking

Estimated live births to resident mothers from July 1 of the previous year through June 30 of the reported year.

Census population estimates component. The year identifies the end of the July-to-June period. These estimates can be revised and differ from calendar-year birth totals.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program: births, July 1 of the previous year to June 30 of the reported year, nation, states and counties. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.

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Rank Counties in Massachusetts by births (July to June) using official data, and cite the source.
rank_places {"indicator":"births_july_june","level":"province","within":"Massachusetts","limit":10}
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Questions

Which county has the highest births (July to June)?

Middlesex County, with 15,593 in 2021, according to the U.S. Census Bureau.

Which county has the lowest births (July to June)?

Nantucket County, with 147 in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program: births, July 1 of the previous year to June 30 of the reported year, nation, states and counties. Retrieved 2026-10-08.

Live births, July to June: other rankings

Counties in Massachusetts: more rankings