Allison Park, PA Profile: Facts & Data

The primary coordinate point for Allison Park is located at latitude 40.5595 and longitude -79.9587 in Allegheny County. The formal boundaries for the Allison Park Census Designated Place encompass a land area of 13.83 sq. miles and a water area of 0 sq. miles. Allegheny County is in the Eastern time zone (GMT -5).

The Allison Park Census Designated Place has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

A Census Designated Place (CDP) is a statistical counterpart to a self-governing (incorporated) place such as a city, town, or village. A CDP is not a legal entity and has no governmental functions.

Allison Park, PA Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	21,776 (100%)
Population in Households	21,137 (97.1%)
Population in Families	17,421 (80.0%)
Population in Group Quarters¹	639 ( 2.9%)
Population Density	1,571
Diversity Index²	22


INCOME
Median Household Income	$117,472
Average Household Income	$157,598
% of Income for Mortgage⁴	21%
Per Capita Income	$64,018
Wealth Index⁵	172
Socioeconomic Status Index⁶	High (66.6)

HOUSING
Total HU (Housing Units)	9,355 (100%)
Owner Occupied HU	7,130 (76.2%)
Renter Occupied HU	1,673 (17.9%)
Vacant Housing Units	552 ( 5.9%)
Median Home Value	$391,078
Average Home Value	$452,732
Housing Affordability Index³	104

HOUSEHOLDS
Total Households	8,803
Average Household Size	2.40
Family Households	5,932
Average Family Size	3.00

NOTES

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.
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.
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.
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).
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.
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.

Allison Park, PA - Peer Comparisons by Rank and Percentile

The table below compares Allison Park 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.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	-0.08%	-0.10%
Households	-0.08%	-0.03%
Families		0.30%
Median Household Income		3.00%
Per Capita Income		2.18%
Owner Occupied HU		0.15%

Variable Description	Rank	Percentile
Total Population	# 28	99th
Population Density	# 876	56th
Median Household Income	# 127	94th
Housing Affordability Index	# 958	48th
Per Capita Income	# 91	96th
Diversity Index	# 921	54th

Allison Park, PA Profile: Facts & Data

Allison Park, Pennsylvania - Basic Facts

Allison Park, PA Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Allison Park, PA - Peer Comparisons by Rank and Percentile

Allison Park, PA - Most Popular Things to Do

Use HTL Address Research for a Pennsylvania Address and get...

Quick & Easy Ways to...

Pennsylvania Census Data Comparison Tool

Allegheny County