Cornwall is home to 4,623 people in Pennsylvania. At a median age of 56.8, this is an older place than the country as a whole. Median rent is $3,023 a month. That puts it in the top 6% of US cities for household income. That is roughly 38% ahead of the Pennsylvania median. The foreign-born share is 2%.
At a glance
Wealthier
median household income $107,583, above the US median
US median: $82,259
Older
median age 56.8
US median: 38.9
More educated
47% hold a bachelor's degree
US average: 36%
Less affordable
home values up 33%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Cornwall
What changed most since 1990
Median age39.1 → 56.8(+17.7 years)US over the same years: +6.0 years
White share97.2% → 92.7%(−4.5 pts)US over the same years: −17.8 pts
Adults with a bachelor's degree21.5% → 46.7%(+25.3 pts)US over the same years: +15.3 pts
Cornwall's population equals 3.2% of Lebanon County's. Its number of residents living in poverty equals 0.7% of the county's. Its number of households without a car equals 1.2% of the county's.
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)13.5%(53)
US avg: 26.4%
Gulf War (1990s)12.2%(48)
US avg: 24.3%
Vietnam era49%(193)
US avg: 33.1%
Korean War17%(67)
US avg: 4.5%
World War II1.5%(6)
US avg: 1%
Share of the 394 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
Cornwall, decade by decade
Cornwall 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
3,231
$95,753
$220,806
21.5%
6.9
2000
3,486
$108,480
$251,571
36.1%
6.4
2010
4,112
$99,077
$307,710
35.2%
8.9
2020
4,604
$103,914
$279,617
34.7%
16.5
2024
4,623
$107,583
$333,700
46.7%
17.3
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.
