Counties in Massachusetts by natural change, July to June

Middlesex County had the highest natural change, July to June of 14 counties in 2018, at 4,986. Barnstable County had the lowest, at -1,358. The median was 218 and the figure for Massachusetts was 11,539. Source: the U.S. Census Bureau.

Highest4,986Middlesex County

Lowest-1,358Barnstable County

Median21814 counties

Massachusetts11,539History

Map of counties, 2018

Under -580
-580 to -330
-330 to 0
0 to 340
340 to 1,400
1,400 and over

persons, 2018. Red areas are below zero and blue areas above it. Source: U.S. Census Bureau, Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2018

persons. Source: U.S. Census Bureau, Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2018 persons	Change on 2017
1	Middlesex County Estimated	4,986	-8.8%
2	Suffolk County Estimated	4,220	-9%
3	Norfolk County Estimated	1,417	+18%
4	Essex County Estimated	1,390	-14.6%
5	Worcester County Estimated	1,028	-22.6%
6	Plymouth County Estimated	463	+41.6%
7	Hampden County Estimated	338	+18.6%
8	Bristol County Estimated	97	+14.1%
9	Nantucket County Estimated	75	-6.3%
10	Dukes County Estimated	11	-68.6%
11	Franklin County Estimated	-216	-36.7%
12	Hampshire County Estimated	-334	-18.9%
13	Berkshire County Estimated	-578	-8.9%
14	Barnstable County Estimated	-1,358	+8.6%

Other periods

About this ranking

Estimated births minus deaths of residents from July 1 of the previous year through June 30 of the reported year. A negative value means more deaths than births.

Equals births_july_june minus deaths_july_june for the same place and year. Not a calendar-year figure.

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: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021 (Counties in Massachusetts by natural change, July to June, 2018) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021, Counties in Massachusetts by natural change, July to June, 2018. U.S. Census Bureau, 26 Mar. 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/natural-change-july-june/massachusetts-counties?period=2018. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Counties in Massachusetts by natural change, July to June, 2018. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/natural-change-july-june/massachusetts-counties?period=2018.

Harvard

U.S. Census Bureau (2026) Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021, Counties in Massachusetts by natural change, July to June, 2018 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/natural-change-july-june/massachusetts-counties?period=2018 (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_massachusetts_by_2018,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021: Counties in Massachusetts by natural change, July to June, 2018}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/natural-change-july-june/massachusetts-counties?period=2018. Publisher attribution: U.S. Census Bureau. Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021: Counties in Massachusetts by natural change, July to June, 2018
PY  - 2026
DA  - 2026/03/26
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/natural-change-july-june/massachusetts-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/natural-change-july-june/massachusetts-counties?period=2018.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -

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Rank Counties in Massachusetts by natural change, July to June using official data, and cite the source.

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Questions

Which county has the highest natural change, July to June?

Middlesex County, with 4,986 in 2018, according to the U.S. Census Bureau.

Which county has the lowest natural change, July to June?

Barnstable County, with -1,358 in 2018.

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: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Retrieved 2026-10-12.