Counties in Massachusetts by business establishments (QCEW)

Middlesex County had the highest business establishments (QCEW) of 14 counties in 2017, at 55,001. Nantucket County had the lowest, at 1,117. The median was 16,727 and the figure for Massachusetts was 252,761. Source: the U.S. Bureau of Labor Statistics.

Highest55,001Middlesex County

Lowest1,117Nantucket County

Median16,72714 counties

Massachusetts252,761History

Map of counties, 2017

Under 3,900
3,900 to 11K
11K to 18K
18K to 25K
25K and over

count, 2017. 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, 2017

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	2017 count	Change on 2016
1	Middlesex County	55,001	+1.8%
2	Suffolk County	29,617	+4.2%
3	Essex County	25,591	+4.5%
4	Norfolk County	25,308	+1.3%
5	Worcester County	25,229	+3.2%
6	Hampden County	18,171	+2.1%
7	Bristol County	17,551	+1.3%
8	Plymouth County	15,902	+2.8%
9	Barnstable County	9,468	+1%
10	Berkshire County	5,166	+1%
11	Hampshire County	4,857	+0.5%
12	Franklin County	2,453	+1.5%
13	Dukes County	1,284	+2.9%
14	Nantucket County	1,117	+3%

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/2017/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), 2017) [Data set]. Retrieved October 12, 2026, from https://data.bls.gov/cew/data/api/2017/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), 2017. U.S. Bureau of Labor Statistics, 21 Aug. 2026, https://data.bls.gov/cew/data/api/2017/a/industry/10.csv. Invokely, https://invokely.ai/rankings/business-establishments/massachusetts-counties?period=2017. 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), 2017. Dataset. Accessed October 12, 2026. https://data.bls.gov/cew/data/api/2017/a/industry/10.csv. Also distributed by Invokely, https://invokely.ai/rankings/business-establishments/massachusetts-counties?period=2017.

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), 2017 [Dataset]. Available at: https://data.bls.gov/cew/data/api/2017/a/industry/10.csv, via Invokely: https://invokely.ai/rankings/business-establishments/massachusetts-counties?period=2017 (Accessed: 12 October 2026).

BibTeX

@misc{bureau_counties_in_massachusetts_by_2017,
  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), 2017}},
  year = {2026},
  howpublished = {Data set},
  url = {https://data.bls.gov/cew/data/api/2017/a/industry/10.csv},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/business-establishments/massachusetts-counties?period=2017. 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/2017/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), 2017
PY  - 2026
DA  - 2026/08/21
PB  - U.S. Bureau of Labor Statistics
DB  - Invokely
UR  - https://data.bls.gov/cew/data/api/2017/a/industry/10.csv
L2  - https://invokely.ai/rankings/business-establishments/massachusetts-counties?period=2017
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/business-establishments/massachusetts-counties?period=2017.
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/2017/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 55,001 in 2017, according to the U.S. Bureau of Labor Statistics.

Which county has the lowest business establishments (QCEW)?

Nantucket County, with 1,117 in 2017.

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.