Greencastle, Pennsylvania Demographics & Population 2026
During the 2020–2024 ACS period, Greencastle, Pennsylvania had a total population of 4,222, the 335th largest borough in Pennsylvania, with a median household income of $77,419, which is about the same as the state average. The poverty rate is 6.9%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Greencastle Quick Facts
How Greencastle Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 4,237 | 4,222 | -0.4% |
| Median household income | $74,725 | $77,419 | +3.6% |
| Median home value | $255,200 | $264,500 | +3.6% |
How Greencastle Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 45 | National average: 61
Education
Educational Attainment (Adults 25+)
Greencastle Rankings in Pennsylvania
Explore Pennsylvania Rankings
Other Cities in Franklin County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Chambersburg | 22,319 | $56,576 | 15.3% | $215,000 |
| Waynesboro | 11,047 | $66,956 | 10.2% | $188,600 |
| Guilford | 3,919 | $123,962 | 1.6% | $278,100 |
| Wayne Heights | 3,293 | $83,700 | 4.5% | $250,100 |
| State Line | 3,111 | $85,913 | 7.8% | $289,800 |
| Fayetteville | 2,593 | $58,819 | 4.3% | $194,900 |
| Mercersburg | 1,725 | $66,114 | 10.4% | $210,700 |
| Mont Alto | 1,632 | $80,556 | 10.0% | $191,600 |
| Scotland | 1,492 | $70,096 | 14.9% | $214,000 |
| Pen Mar | 1,171 | $117,825 | 1.1% | $270,300 |
Cities Similar to Greencastle
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Akron | 4,143 | $76,569 | $264,600 | 20.9% | 5.0% |
| Forty Fort | 4,252 | $74,432 | $173,000 | 28.6% | 11.6% |
| Aldan | 4,259 | $74,514 | $234,800 | 28.7% | 8.9% |
| Plains | 4,153 | $74,150 | $155,100 | 30.2% | 17.4% |
| Sinking Spring | 4,281 | $82,500 | $283,200 | 34.1% | 7.8% |
Population Overview
Greencastle is a small community located in Pennsylvania, within Franklin County. The total population is 4,222. It ranks as the 335th most populous out of 1,991 Census-designated places in Pennsylvania.
Age Demographics
The median age in Greencastle is 43.6 years. This is 7% higher than the state median of 40.9 years.
Economy, Income & Housing
The median household income in Greencastle is $77,419. This is about the same as the state median of $77,971. It is also 4% lower than the national median of $80,734. The poverty rate stands at 6.9%. This is 41% lower than the state poverty rate of 11.7%. The unemployment rate is 3.0%. This is 43% lower than the state rate of 5.3%. The median home value is $264,500. Housing costs are 4% higher than the state median of $254,500. The home-value-to-income ratio is 3.4x. 62.1% of occupied housing units are owner-occupied. This homeownership rate is 11% lower than the state average of 69.3%.
Race & Ethnicity
Greencastle has a predominantly White (non-Hispanic) population, comprising 91.4% of all residents. Black or African American residents account for 2.1%. The Black or African American population (2.1%) is well below the state average of 10.3%. The Hispanic or Latino population (1.3%) is well below the state average of 8.7%.
Education
33.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 5% lower than the state rate of 35.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.0%. Notably, 18.7% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Greencastle, Pennsylvania is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Pennsylvania state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,991 Census-designated places in Pennsylvania. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
Free data download: Get all Pennsylvania city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of Greencastle, Pennsylvania?
Greencastle, Pennsylvania has a population of 4,222 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Greencastle, PA?
The median household income in Greencastle is $77,419, which is 4% lower than the national median of $80,734.
What is the poverty rate in Greencastle, PA?
The poverty rate in Greencastle is 6.9%. This means approximately 290 residents live below the federal poverty line.
What is the racial makeup of Greencastle, Pennsylvania?
Greencastle's population is 91.4% White, 2.1% Black, 1.3% Hispanic/Latino, and 2.0% Asian.
What is the median home value in Greencastle, PA?
The median home value in Greencastle is $264,500. The home-value-to-income ratio is 3.4x.
How educated is Greencastle, Pennsylvania?
33.5% of adults (25+) in Greencastle hold a bachelor's degree or higher, and 18.7% hold a graduate or professional degree.