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Nantucket County, Massachusetts: commercial real estate data.

Nantucket County, Massachusetts had an estimated 14,670 residents on July 1, 2024, up 2.9 percent since the 2020 census base of 14,250, across 45 square miles. County output reached $2.11 bn in 2024, 1,317 establishments operate here, and the SBA record carries 42 7(a) approvals worth $17.3 m since FY2020.

Underlined figures are computed by MMCG Analytics, not published by the agency.

Nantucket County

How many people live in Nantucket County

  • Population, American Community Survey 2020-202414,483
  • Households5,252
  • Average household size2.76
  • Median household income$139,688
  • Median age42.4
  • Median gross rent$2,213 per month
  • Median owner-occupied home value$1,593,800
  • Home value to household income11.4 times
  • Annual rent as a share of median income19.0 percent
  • Adults 25 and over with a bachelor degree or higher56.3 percent
  • Adults 25 and over with a graduate degree21.9 percent
  • Adults 25 and over10,529
  • Population under 182,975
  • Share under 1820.5 percent
  • Population 65 and over2,327
  • Share 65 and over16.1 percent
  • Working age population, 18 to 649,181
  • Civilian labor force8,574
  • Unemployment rate4.3 percent
  • Labor force participation, adults 18 and over74.5 percent
  • Rank by population among Massachusetts counties14th of 14
  • Rank by population among US county-equivalents, Puerto Rico included2187th of 3,222

Nantucket County is the 14th largest of 14 Massachusetts counties by population. A median home costs 11.4 times median household income, which is severely unaffordable by national standards. Residents under 18 outnumber those 65 and over, at 20.5 percent against 16.1 percent, a household formation profile rather than a retirement one.

US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.

Nantucket County

Is Nantucket County's population growing?

  • Population, July 1, 202414,670
  • Census 2020 base population14,250
  • Population change since the 2020 census base2.95 percent
  • Population change, 2023 to 2024136
  • Births, 2024162
  • Deaths, 2024100
  • Natural change, 202462
  • Net domestic migration, 2024-58
  • Net international migration, 2024131
  • Total net migration, 202473
  • Cumulative net domestic migration, 2021 to 2024-183
  • Rank by growth among US county-equivalents884th of 3,144

The county has grown 2.95 percent since the 2020 census base. The population grew in 2024 from both sources: births exceeded deaths and more people moved in than left.

US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.

Nantucket County

Where are people moving to Nantucket County from?

  • Tax returns filed by households arriving413
  • People arriving, from those returns595
  • Tax returns filed by households leaving463
  • Net household movement-50
  • Adjusted gross income arriving$218.6 m
  • Net adjusted gross income movement$138.8 m
  • Average income of an arriving household$529,257
  • Average income of a leaving household$172,359
  • Largest single originSuffolk County (31 households)
  • Largest single destinationBarnstable County (66 households)
Largest origins of households moving into Nantucket County
OriginHouseholdsPeopleAdjusted gross income
Suffolk County3143$6.7 m
Middlesex County2948$15.8 m

Households arriving report $356,898 more average income than households leaving, so the migration is raising local spending power rather than just moving it around. The largest single source of arrivals is Suffolk County, which is the catchment a retail or multifamily study should look at first.

US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.

Nantucket County

What is the Nantucket County economy?

  • County GDP, 2024$2.11 bn
  • County GDP, 2023$1.97 bn
  • GDP change, 2023 to 20247.1 percent
  • GDP change over five years55.0 percent
  • Rank by GDP among the Massachusetts areas BEA publishes14th of 14
  • Rank by GDP among the US county areas BEA publishes1231st of 3,127
  • GDP per resident$145,505

Output grew 7.1 percent in the latest year and 55.0 percent over five, which is the trend line a lender will read behind any single year figure.

US Bureau of Economic Analysis, Regional, table CAGDP2, CAGDP2, through 2024.

Nantucket County

Employment by industry in Nantucket County

  • Covered employment, annual average8,560
  • Establishments reporting1,318
  • Average annual pay$78,799
  • Average weekly wage$1,515
  • Accommodation and food services, employment1,727
  • Accommodation and food services, average annual pay$59,699
  • Construction, employment1,126
  • Construction, average annual pay$95,440
  • Retail trade, employment1,066
  • Retail trade, average annual pay$65,240
  • Administrative and support and waste management services, employment936
  • Administrative and support and waste management services, average annual pay$84,620
  • Arts, entertainment and recreation, employment640
  • Health care and social assistance, employment568
Private sector employment and pay by industry, Nantucket County
SectorEmploymentEstablishmentsAverage annual pay
Accommodation and food services1,727116$59,699
Construction1,126424$95,440
Retail trade1,066164$65,240
Administrative and support and waste management services936140$84,620
Arts, entertainment and recreation64039$69,518
Health care and social assistance56838$89,282
Other services, except public administration29180$72,171
Real estate and rental and leasing22889$90,875

Accommodation and food services is the largest private sector at 1,727 jobs, 20.2 percent of covered employment.

US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.

Nantucket County

How many businesses are in Nantucket County?

  • Establishments, all industries1,317
  • Employment at those establishments5,626
  • Annual payroll$540.9 m
  • Establishments per 1,000 residents90.9

These are counts of establishments physically operating in the county, not listings, so they are the supply side a feasibility study measures demand against. County Business Patterns counts private establishments with paid employees in March 2023, while the Quarterly Census of Employment and Wages above counts every unemployment-insured employer, public ones included, as a 2024 annual average, so the two establishment and employment counts differ.

US Census Bureau, County Business Patterns, 2023.

Nantucket County

Building permits in Nantucket County

  • Housing units authorized by permit, 2024262
  • Declared construction value permitted$253.5 m
  • Single family units authorized218
  • Multifamily units authorized44
  • Multifamily share of units16.8 percent
  • Average declared value per unit$967,619
  • Units authorized per 1,000 households49.9

Single-family homes are 83.2 percent of units authorized, so the pipeline is predominantly single-family.

US Census Bureau, Building Permits Survey, 2024 annual.

Nantucket County

SBA loans in Nantucket County (7(a) and 504)

  • 7(a) approvals recorded42
  • 7(a) gross approval dollars$17.3 m
  • Average 7(a) approval$410,974
  • Median 7(a) approval$100,000
  • 10th percentile approval$40,000
  • 90th percentile approval$1,302,180
  • Largest single approval$3,240,000
  • Jobs reported supported, 7(a)220
  • Jobs per approval5.2
  • Distinct 7(a) lenders active12
  • Distinct industries receiving approvals27
  • Median 7(a) term120 months
  • Share of loans on real estate terms, 240 months or longer7.1 percent
  • Loans on real estate terms3
  • Loans on working capital terms, 120 months or shorter39
  • Franchise loans0
  • Franchise share of approvals0.0 percent
  • Leading industry by approval countFinish Carpentry Contractors (7)
  • Most active lenderThe Cape Cod Five Cents Savings Bank (13)
  • 504 approvals recorded31
  • 504 gross approval dollars$19.7 m
  • Average 504 approval$634,258
  • Median 504 approval$435,000
  • Distinct CDCs active5
  • 504 jobs per approval3.1
  • 504 jobs per million dollars approved4.9
  • Most active CDCBay Colony Development Corporation (9)
  • Combined SBA approval dollars, 7(a) FY2020 to FY2026 and 504 FY2010 to FY2026$36.9 m

The average approval of $410,974 sits well above the median of $100,000, pulled up by a few larger deals, so the median is the better guide to what a typical borrower here gets. Only 7.1 percent of approvals run on real estate terms, so SBA credit here is mostly working capital and equipment rather than property acquisition.

US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30. US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.

Nantucket County

SBA loan default and charge-off rates in Nantucket County

Do SBA loans in Nantucket County get paid back?

  • Loans with a final outcome recorded5
  • Paid in full4
  • Charged off1
  • Status: Exempt from disclosure31
  • Status: Paid in full4
  • Status: Committed, not yet disbursed2
  • Status: Cancelled4
  • Status: Charged off1

Only 5 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.

Compare against the national and state SBA charge-off rates, computed the same way over resolved loans only.

US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.

Nantucket County

SBA lending by place in Nantucket County

  • Borrower cities with recorded lending2
  • Nantucket, approvals41
  • Vero Beach, approvals1
SBA 7(a) approvals by borrower city, loans with a project in Nantucket County, FY2020 to FY2026
Borrower cityApprovalsGross approval dollars
Nantucket41$17,160,900
Vero Beach1$100,000

Nantucket accounts for 41 approvals against 1 in Vero Beach. County level figures average over that gap, which is why a site decision is made at the submarket rather than the county.

US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.

Nantucket County

How large is Nantucket County?

  • Land area45 sq mi
  • Rank by land area among Massachusetts counties14th of 14
  • Width, east to west16.4 mi
  • Height, north to south10.6 mi
  • Geographies sharing a boundary0
  • Residents per square mile of land322
  • Establishments per square mile29.27

US Census Bureau county boundary geometry, TIGER, adjacency computed from shared boundary vertices, TIGER county boundaries. US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year. US Census Bureau, County Business Patterns, 2023.

Nantucket County

Flood risk in Nantucket County

  • Communities in the county in the NFIP Community Status Book1
  • Of those, participating in the NFIP1
  • NFIP participation rate100.0 percent
  • Communities carrying a CRS class0
  • Radon levels in Nantucket County, EPA zone predicted average indoor radon screening level from 2 to 4 pCi/LZone 2

The EPA places Nantucket County in radon zone 2, a predicted average indoor radon screening level from 2 to 4 pCi/L. The zone is a screening prediction for the county and does not substitute for a test at an address. 100.0 percent of the county's listed communities participate in the National Flood Insurance Program, per Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.

Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26. US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001.

Coverage

What this page does not hold.

Traffic counts, 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 →

Feasibility studies

When a Nantucket County site needs a document a lender will accept.

The same data layer behind this page is the one the studies are written from. A study for a Nantucket County site starts with the figures you are reading, carrying the same source and period into the credit file.

  • Population, American Community Survey 2020-202414,483
  • Households5,252
  • Average household size2.76
  • Median household income$139,688
  • Median age42.4

How a feasibility study works →

Common questions

Nantucket County questions, answered from the record.

How many people live in Nantucket County, Massachusetts?

The Census Bureau estimates 14,670 residents on July 1, 2024 (US Census Bureau, Population Estimates Program, Vintage 2024). The American Community Survey 2020-2024 five-year estimate is 14,483, in 5,252 households, ranking 14th of 14 Massachusetts counties. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.

Is Nantucket County's population growing?

The population has grown 2.95 percent since the 2020 census base of 14,250, to 14,670 on July 1, 2024. In 2024 there were 162 births against 100 deaths, with net migration of 73. Source: US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.

What is the median household income in Nantucket County?

$139,688. The median owner-occupied home is valued at $1,593,800, which is 11.4 times income, and median gross rent is $2,213 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.

How many businesses are in Nantucket County?

1,317 establishments, employing 5,626 people with an annual payroll of $540.9 m. These are establishments physically operating in the county, not listings. Source: US Census Bureau, County Business Patterns, 2023.

What is employment by industry in Nantucket County?

Accommodation and food services is the largest private sector at 1,727 jobs, 20.2 percent of covered employment. Covered employment averages 8,560 jobs at an average annual pay of $78,799, or $1,515 a week. Source: US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.

How much SBA lending happens in Nantucket County?

42 7(a) approvals totaling $17.3 m since FY2020, across 12 lenders, with a median approval of $100,000, plus 31 504 approvals worth $19.7 m since FY2010. These are approvals recorded in the release, not loans disbursed.

How many building permits were issued in Nantucket County?

262 housing units were authorized by permit in 2024, with a declared construction value of $253.5 m. Multifamily was 16.8 percent of units. Source: US Census Bureau, Building Permits Survey, 2024 annual.

What is the radon zone for Nantucket County?

Zone 2, a predicted average indoor radon screening level from 2 to 4 pCi/L. Source: US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001.

Where do people moving to Nantucket County come from?

The largest single origin is Suffolk County, with 31 households. Arriving households report an average income of $529,257 against $172,359 for those leaving. Source: US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.

Are traffic counts available for Nantucket County on this page?

No. Annual average daily traffic resolves in the platform rather than in this dataset, so no AADT figure is printed here. It is a gap we know about rather than a figure we estimated.

Is zoning published for Nantucket County?

No. Nothing on this page presents parcel level zoning, and where a statutory framework applies it is marked as the statewide frame, to be confirmed locally.

Nantucket County

Cities and places in Nantucket.

3 Census places lie wholly or partly in Nantucket County. All 3 carry enough published place level data for a page of their own and are linked.

Census places in Nantucket County, by population, with SBA 7(a) approvals to borrowers in each place for projects in Nantucket County
PlaceTypePopulationSBA 7(a) approvals, projects in this countyLies in
NantucketCDP10,01741Wholly in this county
MadaketCDP377None recordedWholly in this county
SiasconsetCDP204None recordedWholly in this county

A further 1 of the county's 42 SBA 7(a) approvals are to borrowers in cities that match no Census place in Nantucket County, the largest being Vero Beach (1). Those are postal cities, unincorporated areas and cities outside the county, so no place row claims them; they are counted in the county total above.

Nearby

Sharing a boundary with Nantucket.

No county-equivalent shares a land boundary with Nantucket County.

All Massachusetts county pages →

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