HomeMassachusettsMiddlesex CountyMarlborough
Marlborough, Massachusetts: commercial real estate data.
Marlborough is a Census city of 41,647 people across 20.86 square miles of land, in Middlesex County. Median household income is $91,968, 56.0 percent of occupied homes are owned, and the SBA record carries 95 7(a) approvals to borrowers here worth $25.0 m since FY2020.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Marlborough
What Marlborough is
- Census place typecity
- Land area20.86 sq mi
- Water area1.24 sq mi
- Population per square mile of land1,996
- County holding the largest share of its areaMiddlesex County, 100.0 percent
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Marlborough
How many people live in Marlborough
- Population41,647
- Median age37.5
- Population under 188,653
- Share under 1820.8 percent
- Population 65 and over6,203
- Share 65 and over14.9 percent
- Households16,665
- Family households10,491
- Share of households that are families63.0 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Marlborough
Income and work in Marlborough
- Median household income$91,968
- Per capita income$46,241
- Civilian labor force24,413
- Employed23,074
- Unemployed1,339 plus or minus 423
- Unemployment rate5.5 percent plus or minus 1.7
- Adults 25 and over29,293
- Adults 25 and over with a high school diploma or higher87.9 percent
- Adults 25 and over with a bachelor degree or higher40.5 percent
- Adults 25 and over with a graduate degree16.2 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Marlborough
Housing in Marlborough
- Housing units17,247
- Occupied units16,665
- Vacant units582 plus or minus 235
- Vacancy rate3.4 percent plus or minus 1.4
- Owner occupied9,336
- Renter occupied7,329
- Ownership rate56.0 percent
- Median owner-occupied home value$513,100
- Median gross rent, monthly$1,871
- Annual rent as a share of median income24.4 percent
- Single family units8,784
- Share single family50.9 percent
- Units in buildings of two or more7,911
- Share in buildings of two or more45.9 percent
- Mobile homes552 plus or minus 205
- Median year structure built1974
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Marlborough
How Marlborough gets to work
- Workers 16 and over who commute18,735
- Commuting under 15 minutes4,904
- Share commuting under 15 minutes26.2 percent
- Commuting 30 minutes or more8,780
- Share commuting 30 minutes or more46.9 percent
- Drove alone65.2 percent
- Carpooled12.3 percent
- Public transport0.4 percent plus or minus 0.3
- Walked1.9 percent plus or minus 0.9
- Worked from home16.2 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Marlborough
SBA loans in Marlborough (7(a))
- Approvals95
- Gross approval$25,031,400
- Average approval$263,488
- Median approval$75,000
- Ninetieth percentile approval$500,000
- Largest approval$3,365,000
- Jobs supported1,057
- Jobs per approval11.1
- Loans with a final outcome19
- Paid in full19
- Charged off0
- Median term120 months
- Share on real estate terms of 20 years or more0.0 percent
- Share to franchises6.3 percent
- Distinct lenders35
- Distinct industries by NAICS44
Counted by borrower city: approvals to borrowers whose address is in Marlborough, in any county, FY2020 to FY2026. Only 19 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Marlborough
SBA loans in Marlborough (504)
- Approvals19
- Gross approval$13,727,000
- Average approval$722,474
- Median approval$583,000
- Largest approval$2,098,000
- Jobs supported218
- Loans with a final outcome1
- Charged off0
- Median term300 months
- Distinct CDCs3
Counted by borrower city: approvals to borrowers whose address is in Marlborough, in any county, FY2010 to FY2026. Only 1 loan has reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.
Marlborough
Flood risk in Marlborough
- NFIP communityCity of Marlborough
- NFIP community number250203
- Participating in the NFIPYes
- Community Rating System classNone
- Currently effective map date07/07/14
The City of Marlborough participates in the National Flood Insurance Program as community 250203 and carries no Community Rating System class, so no CRS premium discount applies to it.
Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.
Middlesex County, not Marlborough
Middlesex County context, not Marlborough figures
- Establishments in Middlesex County44,624
- Covered employment, Middlesex County926,104
- Average annual pay, Middlesex County$113,704
- Housing units permitted, Middlesex County3,495
Every figure in this section is published for Middlesex County as a whole and is not a measurement of Marlborough.
All Middlesex County figures →
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual.
Coverage
What this page does not hold.
Parcel detail, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →
Common questions
Marlborough questions, answered from the record.
How many people live in Marlborough, Massachusetts?
41,647, in 16,665 households. Marlborough city covers 20.86 square miles of land, which is 1,996 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Marlborough in?
Middlesex County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.
What is the median household income in Marlborough?
$91,968. The median owner-occupied home is valued at $513,100. Median gross rent is $1,871 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
How much SBA lending goes to Marlborough businesses?
95 7(a) approvals totaling $25.0 m since FY2020, across 35 lenders, median approval $75,000, plus 19 504 approvals worth $13.7 m since FY2010. These count approvals to borrowers whose address is in Marlborough, not projects sited inside the place boundary, and they are approvals recorded in the release rather than loans disbursed.
Do SBA loans to Marlborough borrowers get paid back?
No rate is published for Marlborough. Only 19 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published. The counts are shown instead.
Is Marlborough in the National Flood Insurance Program?
Yes. Marlborough appears in the FEMA Community Status Book as Marlborough, city of, community 250203, with no Community Rating System class, so no CRS discount applies. Whether a specific parcel sits in a mapped special flood hazard area is an address level question the platform answers.
Are the county figures on this page Marlborough figures?
No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Middlesex County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Marlborough.
Is zoning published for Marlborough?
No. Nothing on this page presents parcel level zoning.
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