South Glastonbury Flag

South Glastonbury

County Seat:
No
Area (mi²):
17.492
State:
Montana

South Glastonbury is a CDPlocated in Park County, Montana. South Glastonbury has a 2026 population of 324. South Glastonbury is currently growing at a rate of 6.93% annually but its population has decreased by -14.51% since the most recent census, which recorded a population of 379 in 2020.

The median household income in South Glastonbury is $68,516 with a poverty rate of 9.71%.The median age in South Glastonbury is 76.2 years: 82.2 years for males, and 75 years for females. For every 100 females there are 63.6 males.

324
Total Population
19
Density (mi²)
21 6.93%
Growth

South Glastonbury Population

South Glastonbury Population

Year↓
Population
Growth
Annual Change
2026324216.93%
2025303207.07%
2023263-13-4.71%
2022276-117-29.77%
2021393143.69%
2020379349.86%
2019345-6-1.71%
20183513210.03%
20173195018.59%
2016269-15-5.28%
2015284-122-30.05%
201440614756.76%
2013259-81-23.82%
2012340-58-14.57%
201139800%

Median Age

Overall:76.2 years
Female:75 years
Male:82.2 years

South Glastonbury Adults

There are 175 adults, (141 of whom are seniors) in South Glastonbury.

Sex Ratio

Female: 107 (61.1%)
Male: 68 (38.9%)

Demographics

The racial composition of South Glastonbury includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population↓
Percentage (of total)
White175100%
Race
Population↓
Percentage (of total)
White175100%

South Glastonbury Marital Status

Economics and Income Statistics

South Glastonbury's average per capita income is $35,833. Household income levels show a median of $68,516. The poverty rate stands at 9.71%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median↓
Mean
Families$109,688$90,266
Married Families$109,688-
Households$68,516$86,044
Non Families$67,969$83,880

$35,833

Average Income

$68,516

Median Household Income

9.71%

Poverty Rate

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)