Counties in Massachusetts by business establishments (QCEW)

Middlesex County had the highest business establishments (QCEW) of 14 counties in 2015, at 52,530. Nantucket County had the lowest, at 1,053. The median was 15,849 and the figure for Massachusetts was 237,928. Source: the U.S. Bureau of Labor Statistics.

Highest52,530Middlesex County

Lowest1,053Nantucket County

Median15,84914 counties

Massachusetts237,928History

Map of counties, 2015

Under 3,800
3,800 to 10K
10K to 17K
17K to 24K
24K and over

count, 2015. Source: BLS, Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2015

count. Source: BLS, Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2015 count	Change on 2014
1	Middlesex County	52,530	+2.5%
2	Suffolk County	26,940	+5.2%
3	Norfolk County	24,331	+1.4%
4	Worcester County	23,413	+3.4%
5	Essex County	23,402	+3.2%
6	Hampden County	17,016	+3.4%
7	Bristol County	16,787	+1.2%
8	Plymouth County	14,911	+2.7%
9	Barnstable County	9,172	+0.7%
10	Berkshire County	5,005	+1.6%
11	Hampshire County	4,746	+1.2%
12	Franklin County	2,345	+1%
13	Dukes County	1,220	+2.7%
14	Nantucket County	1,053	+2.2%

Other periods

About this ranking

Average number of establishments with jobs covered by unemployment insurance during the year, all industries, private and government, from the Quarterly Census of Employment and Wages (QCEW) of the U.S. Bureau of Labor Statistics. An establishment is a single place of business, such as a factory, store or office; a company with several locations has several.

Counts places of business, not firms: for firms use employer_firms. Changes in how large employers report their locations can move the count without any change in activity.

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. Bureau of Labor Statistics. Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. https://data.bls.gov/cew/data/api/2015/a/industry/10.csv. 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. Bureau of Labor Statistics. (2026). Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties (Counties in Massachusetts by business establishments (QCEW), 2015) [Data set]. Retrieved October 12, 2026, from https://data.bls.gov/cew/data/api/2015/a/industry/10.csv

MLA 9

Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties, Counties in Massachusetts by business establishments (QCEW), 2015. U.S. Bureau of Labor Statistics, 21 Aug. 2026, https://data.bls.gov/cew/data/api/2015/a/industry/10.csv. Invokely, https://invokely.ai/rankings/business-establishments/massachusetts-counties?period=2015. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Bureau of Labor Statistics. 2026. Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. Counties in Massachusetts by business establishments (QCEW), 2015. Dataset. Accessed October 12, 2026. https://data.bls.gov/cew/data/api/2015/a/industry/10.csv. Also distributed by Invokely, https://invokely.ai/rankings/business-establishments/massachusetts-counties?period=2015.

Harvard

U.S. Bureau of Labor Statistics (2026) Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties, Counties in Massachusetts by business establishments (QCEW), 2015 [Dataset]. Available at: https://data.bls.gov/cew/data/api/2015/a/industry/10.csv, via Invokely: https://invokely.ai/rankings/business-establishments/massachusetts-counties?period=2015 (Accessed: 12 October 2026).

BibTeX

@misc{bureau_counties_in_massachusetts_by_2015,
  author = {{U.S. Bureau of Labor Statistics}},
  title = {{Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties: Counties in Massachusetts by business establishments (QCEW), 2015}},
  year = {2026},
  howpublished = {Data set},
  url = {https://data.bls.gov/cew/data/api/2015/a/industry/10.csv},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/business-establishments/massachusetts-counties?period=2015. Publisher attribution: U.S. Bureau of Labor Statistics. Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. https://data.bls.gov/cew/data/api/2015/a/industry/10.csv. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - U.S. Bureau of Labor Statistics
TI  - Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties: Counties in Massachusetts by business establishments (QCEW), 2015
PY  - 2026
DA  - 2026/08/21
PB  - U.S. Bureau of Labor Statistics
DB  - Invokely
UR  - https://data.bls.gov/cew/data/api/2015/a/industry/10.csv
L2  - https://invokely.ai/rankings/business-establishments/massachusetts-counties?period=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/business-establishments/massachusetts-counties?period=2015.
N1  - Publisher attribution: U.S. Bureau of Labor Statistics. Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. https://data.bls.gov/cew/data/api/2015/a/industry/10.csv. Retrieved 2026-10-12.
ER  -

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Rank Counties in Massachusetts by business establishments (QCEW) using official data, and cite the source.

rank_places {"indicator":"establishments_qcew","level":"province","within":"Massachusetts","limit":10}
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Questions

Which county has the highest business establishments (QCEW)?

Middlesex County, with 52,530 in 2015, according to the U.S. Bureau of Labor Statistics.

Which county has the lowest business establishments (QCEW)?

Nantucket County, with 1,053 in 2015.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. Retrieved 2026-10-12.