Mount Gretna is a city of 208 people in Pennsylvania. At a median age of 63.8, this is an older place than the country as a whole. 65% of adults hold a bachelor's degree, against 36% nationally. 87% of homes are owner-occupied. That puts it in the top 5% of US cities for household income. That is roughly 46% ahead of the Pennsylvania median.
At a glance
Wealthier
median household income $113,500, above the US median
US median: $82,259
Older
median age 63.8
US median: 38.9
More educated
65% hold a bachelor's degree
US average: 36%
Less affordable
home values up 34%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Mount Gretna
What changed most since 1990
Median age40.9 → 63.8(+22.9 years)US over the same years: +6.0 years
Population301 → 208(−31%)US over the same years: +35%
White share99.0% → 91.8%(−7.2 pts)US over the same years: −17.8 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)14.3%(2)
US avg: 26.4%
Gulf War (1990s)14.3%(2)
US avg: 24.3%
Vietnam era71.4%(10)
US avg: 33.1%
Korean War0%(0)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 14 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Mount Gretna, decade by decade
Mount Gretna population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
301
$99,003
$321,609
45.5%
2.5
2000
242
$114,613
$288,186
47.8%
2.0
2010
196
$127,416
$415,459
41.9%
2.5
2020
193
$165,520
$350,037
48.3%
15.0
2024
208
$113,500
$384,900
64.8%
19.1
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
