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Mount Gretna, PA Profile: Facts & Data

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Mount Gretna, Pennsylvania - Basic Facts

The Borough of Mount Gretna had a population of 203 as of July 1, 2025.

The primary coordinate point for Mount Gretna is located at latitude 40.2476 and longitude -76.4694 in Lebanon County. The formal boundaries for the Borough of Mount Gretna encompass a land area of 0.14 sq. miles and a water area of 0 sq. miles. Lebanon County is in the Eastern time zone (GMT -5).

The Borough of Mount Gretna has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.


Jump to... (On This Page!)
  1. Mount Gretna 2025 Demographic Data
  2. Growth Rates for Mount Gretna (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Pennsylvania Research Tools (Easy Tools & Current Data)
  3. Pennsylvania Data Comparison Tool - 2025 Demographics
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Mount Gretna, PA Data & Demographics (As of July 1, 2025)

POPULATION

Total Population 203 (100%)
Population in Households 203 (100.0%)
Population in Families 135 (66.5%)
Population in Group Quarters1 0
Population Density 1,410
Diversity Index2 19
 
 

INCOME

Median Household Income $84,906
Average Household Income $118,716
% of Income for Mortgage4 24%
Per Capita Income $61,990
Wealth Index5 133
Socioeconomic Status Index6 Moderate (63.2)
 

HOUSING

Total HU (Housing Units) 202 (100%)
Owner Occupied HU 103 (51.0%)
Renter Occupied HU 3 ( 1.5%)
Vacant Housing Units 96 (47.5%)
Median Home Value $324,359
Average Home Value $312,718
Housing Affordability Index3 92
 

HOUSEHOLDS

Total Households 106
Average Household Size 1.92
Family Households 47
Average Family Size 3.00
NOTES
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
  6. The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR

 2020-2025 2025-2030
Population 0.97% -0.40%
Households -0.36% -0.19%
Families   7.98%
Median Household Income   0.97%
Per Capita Income   0.69%
Owner Occupied HU   -0.79%

Mount Gretna, PA - Peer Comparisons by Rank and Percentile

The table below compares Mount Gretna to the other 2,002 incorporated cities, towns and CDPs in Pennsylvania by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 1722 14th
Population Density # 940 53rd
Median Household Income # 503 75th
Housing Affordability Index # 659 33rd
Per Capita Income # 106 95th
Diversity Index # 1077 46th

Additional comparisons and rankings can be made with a VERY EASY TO USE Pennsylvania Census Data Comparison Tool.

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