County · Vermont

Grand Isle County, Vermont

Grand Isle County, Vermont. Grand Isle County had 7,511 residents in 2025 by the Census Bureau's estimate, up 3.0% since 2020, faster than Vermont (+0.2%). It holds 7 places (1 city, village or borough, 5 towns and townships and 1 census-designated) and 2 census tracts. GEOID 50013.

Grand Isle County is one of the 3 counties of the Burlington-South Burlington, VT metropolitan statistical area (the Census Bureau's July 2023 delineation).

Residents, July 2025 estimate

7,511

Census Bureau estimate (no margin published)
2020 Census count: 7,293 · ACS 2020-2024: 7,450

Median household income

$97,396

±$12,241 (90% margin)
Vermont: $81,203

Median home value

$394,100

±$24,617 (90% margin)
Vermont: $316,600

Median gross rent

$1,425

±$121 (90% margin)
Vermont: $1,234

How many people live in Grand Isle County, and is it growing?

The 2020 Census counted 7,293 residents in Grand Isle County. The Census Bureau estimates 7,511 for July 1, 2025, up 3.0% since 2020, faster than Vermont (+0.2%). The 2020-2024 American Community Survey puts the population at 7,450 over 82 square miles of land.

  • July 2020→2021 +148 (7,425)
  • 2021→2022 +75 (7,500)
  • 2022→2023 −8 (7,492)
  • 2023→2024 +14 (7,506)
  • 2024→2025 +5 (7,511)
Grand Isle County in Vermont. Boundaries: Census Bureau 2024.
Counts, ACS 2020-2024 5-year estimates, with the change from 2015-2019
MeasureGrand Isle CountyVermontChange since 2015-2019
Total population7,450647,106+428
Households3,140±155273,416no clear change
Average household size2.37±0.122.28no clear change
Housing units5,326±21339,042+36

Grand Isle County's population since 2000

From 6,901 in 2000 to 7,511 in 2025: up 8.8%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.

  • 2000 Census 6,901
  • 2005 (estimate) 7,282
  • 2010 Census 6,970
  • 2015 (estimate) 6,873
  • 2020 Census 7,293
  • 2025 (estimate) 7,511

Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov

What cities and towns are in Grand Isle County?

Grand Isle County holds 7 places: 1 city, village or borough (an incorporated place), 5 towns and townships (county subdivisions with their own government) and 1 census-designated place. The largest is Alburgh with 2,147 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.

Places in Grand Isle County, ACS 2020-2024 5-year estimates. Ring: estimate with a coefficient of variation over 40%.
Alburghtown2,1061,832±231$76,429$268,30011.4%100%
Grand Isletown2,0862,192±243$100,846$398,6006.8%100%
South Herotown1,6741,586±197$127,434$558,3003.5%100%
North Herotown9391,263±195$102,143$451,4007.3%100%
Alburgh villagevillage571486±126$60,000$189,90014.5%100%
Isle La Mottetown488577±148$82,500$269,30014.9%100%
South Hero CDPGEOID 5066925CDP225219±70$98,654$475,0006.4%100%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov

Who lives in Grand Isle County?

The median resident of Grand Isle County is 48.9 years old; 16.9% are under 18 and 23.6% are 65 or older. The largest group is non-Hispanic white residents at 90.2%, then non-Hispanic residents of two or more races at 5.0%. 3.9% of residents were born outside the United States.

Age, origin and education, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
MeasureGrand Isle CountyVermontChange since 2015-2019
Median age48.9±0.543.1no clear change
Under 18 years16.9%±0.1 pts17.9%–
65 years and over23.6%±0.4 pts21.4%–
Hispanic or Latino (any race)2.2%2.6%+0.2 pts
White alone, not Hispanic90.2%±0.8 pts89.9%−2.6 pts
Black or African American alone, not Hispanic0.3%±0.3 pts1.1%–
Asian alone, not Hispanic0.3%±0.2 pts1.8%–
American Indian and Alaska Native alone, not Hispanic1.3%±0.6 pts0.1%–
Native Hawaiian and Other Pacific Islander alone, not Hispanic0.0%±0.3 pts0.0%–
Two or more races, not Hispanic5.0%±0.9 pts4.1%–
Some other race alone, not Hispanic0.6%±0.5 pts0.4%–
Born outside the United States3.9%±1.0 pts4.3%no clear change
Speak a language other than English at home (age 5+)4.2%±1.3 pts5.5%–
Civilian veterans (age 18+)6.9%±1.2 pts6.2%–
With a disability13.6%±1.8 pts14.4%–
No health insurance coverage3.4%±1.2 pts3.9%no clear change
High school graduate or higher (age 25+)95.8%±1.1 pts94.9%–
Bachelor's degree or higher (age 25+)44.0%±4.0 pts43.8%no clear change
Graduate or professional degree (age 25+)17.9%±2.5 pts18.6%–
Moved from another state in the past year3.3%±1.4 pts4.3%–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov

What do households in Grand Isle County earn?

Half of Grand Isle County's 3,140 households earn less than $97,396 a year (±$12,241), against $81,203 in Vermont. In 2015-2019 it was $88,102 in 2024 dollars; the margins of error cannot tell the two periods apart. 7.9% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
MeasureGrand Isle CountyVermontChange since 2015-2019
Median household income$97,396±$12,241$81,203no clear change
Mean household income$130,172±$8,881$107,852–
Per capita income$56,447±$3,535$46,500+$7,502
People below the poverty line7.9%±1.8 pts10.1%no clear change
Children under 18 below the poverty line10.8%±4.5 pts10.8%no clear change
Households receiving SNAP9.0%±2.1 pts10.6%–
Households with a broadband subscription92.5%±2.2 pts89.7%–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What does housing cost in Grand Isle County?

Owners occupy 89.9% of Grand Isle County's occupied homes and renters 10.1%. The median owner-occupied home is valued at $394,100 by its owner (±$24,617). The median renter pays $1,425 a month including utilities, and 40.7% of renters pay 35% or more of their income on rent.

Housing, ACS 2020-2024 5-year estimates
MeasureGrand Isle CountyVermontChange since 2015-2019
Median home value (owner-occupied)$394,100±$24,617$316,600+$55,905
Median gross rent$1,425±$121$1,234+$198
Renters paying 35% or more of income on rent40.7%±12.1 pts38.3%no clear change
Median monthly owner costs, with a mortgage$2,128±$103$1,907–
Owner-occupied homes89.9%±2.5 pts73.2%+5.9 pts
Housing units5,326±21339,042+36
Homeowner vacancy rate0.9%±0.9 pts0.7%–
Rental vacancy rate2.8%±4.3 pts3.0%–
Single-family detached homes81.9%±3.0 pts67.3%–
Mobile homes13.1%±2.7 pts5.9%–
Built 2020 or later1.0%±0.6 pts0.9%–
Built 1939 or earlier19.2%±2.7 pts24.4%–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov

How many new homes is Grand Isle County building?

Builders took permits for 23 new housing units across Grand Isle County in 2025 (21 single-family), 3.1 per 1,000 residents.

  • 2019 25 units
  • 2020 17 units
  • 2021 20 units
  • 2022 22 units
  • 2023 25 units
  • 2024 22 units
  • 2025 23 units

Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey

How do people in Grand Isle County get to work?

73.1% of Grand Isle County's workers drive alone and 17.9% work from home. The average trip to work takes 31.0 minutes. The unemployment rate in 2020-2024 averaged 3.1%.

Work and commuting, ACS 2020-2024 5-year estimates
MeasureGrand Isle CountyVermontChange since 2015-2019
In the labor force (age 16+)63.1%±2.0 pts64.6%–
Unemployment rate3.1%±1.5 pts3.6%no clear change
Drove alone to work73.1%±3.7 pts68.5%–
Carpooled5.6%±1.4 pts7.7%–
Public transportation0.0%±0.7 pts0.8%–
Walked1.9%±1.0 pts4.4%–
Worked from home17.9%±3.3 pts16.9%+9.3 pts
Mean travel time to work31.0 min±1.623.5 min−2.4 min

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What are Grand Isle County's census tracts?

Grand Isle County is divided into 2 census tracts. Among those with a reliable estimate, median household income runs from $82,500 (Tract 201) to $111,563 (Tract 202).

Census tracts of Grand Isle County, ACS 2020-2024 5-year estimates; sort by any column
Tract 20150013020100Alburgh (12%)3,5333,672±216$82,500$327,100$1,47510.5%
Tract 20250013020200South Hero (7%)3,7603,778±216$111,563$444,100$1,4115.4%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov

How does Grand Isle County compare with Vermont's other counties?

Grand Isle County's rank among Vermont's counties with a reliable estimate (1 = highest)
MeasureRank
Population13th of 14
Growth 2020-20251st of 14
Residents per square mile2nd of 14
Median household income1st of 14
Median home value2nd of 14
Median gross rent2nd of 14
Poverty rate13th of 14
Bachelor's degree or higher4th of 14
Median age2nd of 14

Every county in Vermont

Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections

Not on this page: crime, weather and schools for Grand Isle County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.