Irwin, PA 15642 ZIP Code Profile

Related Place Profiles:
Irwin, PA | North Irwin, PA

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ZIP Code 15642: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Irwin, PA 15642

Acceptable Alternative
N Huntingdon, PA 15642
No Huntingdon, PA 15642
North Huntingdon, PA 15642
North Irwin, PA 15642

  • ZIP Code Type: STANDARD
  • County: Westmoreland County
  • Centroid: Latitude 40.329, Longitude -79.721
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

ZIP Code 15642 has segments in 2 Counties (Allegheny, Westmoreland).

  • Businesses Addresses: 1,099
  • PO Box Addresses: 150
  • Residential Addresses: 19,316
    • Multi-Family Addresses: 794
    • Single Family Addresses: 18,522

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


15642 ZIP Code Map

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Irwin, PA 15642 Data & Demographics (As of July 1, 2017)


Total Population 44,808
Daytime Population: Workers 13,181
Daytime Population: Residents 21,217
Total Daytime Population (TDP) 34,398
Ratio TDP/Total Population1 0.77
Population in Households 44,720
Population in Familes 37,913
Population in Group Qrtrs 88
Population Density2 981
Diversity Index3 8


Median Household Income $69,269
Average Household Income $85,743
Per Capita Income $35,004


Total Housing Units 19,349 (100%)
Owner Occupied HU 14,784 (76.4%)
Renter Occupied HU 3,486 (18.0%)
Vacant Housing Units 1,079 ( 5.6%)
Median Home Value $173,281
Average Home Value $207,718


Total Households 18,270
Average Household Size 2.45
Family Households 12,958
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 race 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.


2010-2017 2017-2022
Population 0.03% -0.13%
Households 0.04% -0.12%
Families -0.04% -0.17%
Median Household Income   2.54%
Per Capita Income   2.62%

Irwin, PA 15642 - Peer Comparisons by Rank and Percentile

The table below compares 15642 to the other 1,663 ZIP Codes in Pennsylvania by rank and percentile using July 1, 2017 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 # 31 98th
Population Density # 471 72nd
Diversity Index # 1047 37th
Median Household Income # 258 85th
Per Capita Income # 281 83rd

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

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