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ZIP Code 15642 has segments in 2 Counties (Allegheny, Westmoreland).
The 15642 ZIP Code is centered1 in Westmoreland County at latitude 40.329 and longitude -79.721 (Panoramio Photos). It is a standard type ZIP Code. Westmoreland County is in the Eastern Time Zone (UTC -5 hours) and observes daylight savings time.
The population in ZIP Code Tabulation Area (ZCTA) 15642 was 44,880 with 17,964 housing units; a land area land area of 47.23 sq. miles; a water area of 0.02 sq. miles; and a population density of 950.32 people per sq. mile for Census 2000. Demographic Profile
Irwin, PA 15642 Map (Marker is ZIP Code Centroid)
Local Search, 15642 ZIP Code| Distance & Driving Directions
Nearby Cities, Towns & Census Designated Places
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Scab Hill, PA
(< 0.1 mile) Shawtown, PA (< 0.1 mile) North Irwin, PA (< 0.1 mile) Jacktown, PA (< 0.1 mile) Hahntown, PA (< 0.1 mile) |
Fairmount, PA
(< 0.1 mile) Circleville, PA (< 0.1 mile) Browntown, PA (< 0.1 mile) Cereal, PA (1.4 miles S) Barners Hill, PA (1.4 miles NW) |
Nearby Neighborhoods, Subdivisions & Other Small Populated Places
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Byerly, PA
(2.4 miles WNW) Edna Number Two, PA (3.1 miles SE) Yohoghany, PA (3.6 miles SW) Fulton, PA (3.9 miles S) Edna Number One, PA (4.1 miles ESE) |
Stewart, PA
(4.3 miles NW) Coulter, PA (4.7 miles WSW) Taylor, PA (5.5 miles NW) Fite Station, PA (6.3 miles WNW) Basforth Acres, PA (7.7 miles E) |
ZIP Codes - Key Concepts
- ZIP Codes are categories for grouping mailing addresses and are not exact geographic regions.
- The centroid of a ZIP Code may be in one County and the associated city/town in another.
- In rural areas, a single ZIP Code may be used for cities and towns in several different Counties.
- ZIP Code "areas" can overlap, be subsets of each other, or be artificial constructs with no geographic area.
- ZIP Codes are only loosely tied to cities.
1 Keeping the above key concepts in mind, what we informally refer to as the "center" of a ZIP Code is most often actually the centroid of a polygon.
