The United States Commonwealth of Massachusetts currently has 12 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated two combined statistical area , seven metropolitan statistical areas , and three micropolitan statistical area in Massachusetts.[ 1] As of 2023, the largest of these is the Boston-Worcester-Providence, MA-RI-NH CSA , comprising the area around Massachusetts' capital and largest city of Boston .
The Office of Management and Budget (OMB) has designated more than 1,000 statistical areas for the United States and Puerto Rico .[ 2] These statistical areas are important geographic delineations of population clusters used by the OMB, the United States Census Bureau , planning organizations, and federal, state, and local government entities.
The OMB defines a core-based statistical area (commonly referred to as a CBSA ) as the county or counties (or county-equivalents ) surrounding at least one densely-settled core of at least 10,000 population,[ 2] "plus adjacent counties having a high degree of social and economic integration with the core as measured through commuting ties with the counties containing the core".[ 2] The OMB further divides core-based statistical areas based on population into metropolitan statistical areas (MSAs) for those with at least 50,000 and micropolitan statistical areas (μSAs) for those with 10,000 to 49,999 people.[ 2]
The OMB defines a combined statistical area (CSA) as two or more adjacent core-based statistical areas where the employment interchange rate (% commuting from A to B plus % commuting from B to A) is at least 15%.[ 2] The primary statistical areas (PSAs) include all combined statistical areas and any core-based statistical area that is not a constituent of a combined statistical area.
The 12 United States statistical areas and 14 counties of the Commonwealth of Massachusetts [ a]
Combined statistical area[ 1]
2023 population (est.)[ 3]
Core-based statistical area[ 1]
2023 population (est.)[ 3]
County
2023 population (est.)[ 3]
Metropolitan division[ 1]
2023 population (est.)[ 3]
Boston-Worcester-Providence, MA-RI-NH CSA
8,345,067 6,145,689 (MA )
Boston-Cambridge-Newton, MA-NH MSA
4,919,179 4,465,247 (MA)
Middlesex County, Massachusetts
1,623,952
Cambridge-Newton-Framingham, MA MD
2,434,041
Essex County, Massachusetts
810,089
Suffolk County, Massachusetts
768,425
Boston, MA MD
2,031,206
Norfolk County, Massachusetts
727,473
Plymouth County, Massachusetts
535,308
Rockingham County, New Hampshire
320,689
Rockingham County-Strafford County, NH MD
453,932
Strafford County, New Hampshire
133,243
Providence-Warwick, RI-MA MSA
1,677,803 581,841 (MA)
Providence County, Rhode Island
660,615
none
Bristol County, Massachusetts
581,841
Kent County, Rhode Island
171,278
Washington County, Rhode Island
129,982
Newport County, Rhode Island
83,832
Bristol County, Rhode Island
50,255
Worcester, MA MSA
866,866
Worcester County, Massachusetts
866,866
Manchester-Nashua, NH MSA
427,354
Hillsborough County, New Hampshire
427,354
Barnstable Town, MA MSA
231,735
Barnstable County, Massachusetts
231,735
Concord, NH μSA
157,103
Merrimack County, New Hampshire
157,103
Laconia, NH μSA
65,027
Belknap County, New Hampshire
65,027
Springfield-Amherst Town-Northampton, MA CSA
693,629
Springfield, MA MSA
460,291
Hampden County, Massachusetts
460,291
Amherst Town-Northampton, MA MSA
162,502
Hampshire County, Massachusetts
162,502
Greenfield, MA μSA
70,836
Franklin County, Massachusetts
70,836
none
Pittsfield, MA MSA
126,818
Berkshire County, Massachusetts
126,818
Vineyard Haven, MA μSA
20,819
Dukes County, Massachusetts
20,819
Nantucket, MA μSA
14,444
Nantucket County, Massachusetts
14,444
Commonwealth of Massachusetts
7,001,399
Core-based statistical areas [ edit ]
The following table provides the in-state population ranking of each CBSA along with its rate of population change over time.
The 10 core-based statistical areas of the Commonwealth of Massachusetts[ b]
2023 rank
Core-based statistical area [ 1]
Population
2023 estimate[ 3]
Change
2020 Census [ 4]
Change
2010 Census [ 5]
1
Boston-Cambridge-Newton, MA-NH MSA (MA)
4,465,247
−0.70 %
4,496,567
+8.77 %
4,134,036
2
Worcester, MA MSA
866,866
+0.55 %
862,111
+7.96 %
798,552
3
Providence-Warwick, RI-MA MSA (MA)
581,841
+0.46 %
579,200
+5.64 %
548,285
4
Springfield, MA MSA
460,291
−1.19 %
465,825
+0.50 %
463,490
5
Barnstable Town, MA MSA
231,735
+1.20 %
228,996
+6.07 %
215,888
6
Amherst Town-Northampton, MA MSA
162,502
+0.12 %
162,308
+2.67 %
158,080
7
Pittsfield, MA MSA
126,818
−1.71 %
129,026
−1.67 %
131,219
8
Greenfield, MA μSA
70,836
−0.27 %
71,029
−0.48 %
71,372
9
Vineyard Haven, MA μSA
20,819
+1.06 %
20,600
+24.58 %
16,535
10
Nantucket, MA μSA
14,444
+1.33 %
14,255
+40.14 %
10,172
Boston-Cambridge-Newton, MA-NH MSA
4,919,179
−0.45 %
4,941,632
+8.55 %
4,552,402
Providence-Warwick, RI-MA MSA
1,677,803
+0.07 %
1,676,579
+4.73 %
1,600,852
Combined statistical areas [ edit ]
The following table provides the in-state population ranking of each CSA along with its rate of population change over time.
The two combined statistical areas of the Commonwealth of Massachusetts[ c]
2023 rank
Combined statistical area [ 1]
Population
2023 estimate[ 3]
Change
2020 Census [ 4]
Change
2010 Census [ 5]
1
Boston-Worcester-Providence, MA-RI-NH CSA (MA)
6,145,689
−0.34 %
6,166,874
+8.25 %
5,696,761
2
Springfield-Amherst Town-Northampton, MA CSA
693,629
−0.79 %
699,162
+0.90 %
692,942
Boston-Worcester-Providence, MA-RI-NH CSA
8,345,067
−0.06 %
8,349,768
+7.39 %
7,774,948
^ An out-of-state area and its population are displayed in green. An area that extends into more than one state is displayed in purple. A purple population number over a black population number show the total population versus the in-state population. The state's abbreviation is also shown next to the in-state total.
^ For CBSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that CBSA as well as the CBSA's total population. Only the intrastate population is ranked.
^ For CSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that CSA as well as the CSA's total population. Only the intrastate population is ranked.
^ a b c d e f Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas (July 21, 2023). "0MB BULLETIN NO. 23-01" (PDF) . Office of Management and Budget . Retrieved October 23, 2023 . {{cite web }}: CS1 maint: multiple names: authors list (link )
^ a b c d e "2020 Standards for Delineating Core Based Statistical Areas" . Office of Management and Budget . July 16, 2021. Retrieved December 13, 2021 .
^ a b c d e f "County Population Totals and Components of Change: 2020-2023" . United States Census Bureau , Population Division. March 2023. Retrieved May 21, 2024 .
^ a b "PROFILE OF GENERAL POPULATION AND HOUSING CHARACTERISTICS" . U.S. Census Bureau . 2020. Retrieved May 21, 2024 .
^ a b "Annual Estimates of the Resident Population for Counties: April 1, 2010 to July 1, 2019" . U.S. Census Bureau . 2019. Retrieved May 21, 2024 .
42°15′35″N 71°48′30″W / 42.2596°N 71.8083°W / 42.2596; -71.8083 (Commonwealth of Massachusetts )