Addison Township is a township in Somerset County, Pennsylvania, home to about 1,059 people across 61 square miles. Its ZIP codes are 15411 and 15540, and parts of 15424 are in Addison Township too.
Homes sold for a median of $245 per square foot across 2 ZIP codes in the three months ending August 2026, and 0 of 2 were seller’s markets.
All in Addison Township
Mostly Addison Township; also Elk Lick and Upper Turkeyfoot
Mostly Confluence; part is in Addison Township
Each card is that ZIP code’s whole market, including any part outside Addison Township. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Addison Township’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Pittsburgh International Airport (PIT)69 miles away |
|---|---|
| Closer regional airport | Morgantown Municipal Airport Walter L. (Bill) Hart Field (MGW)34 miles away |
| Nearest city of 250,000+ | Pittsburgh, PA58 miles away |
| Nearest city of 1 million+ | Philadelphia, PA221 miles away |
Straight-line distances from the center of Addison Township; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Addison Township had 931 residents in the 2020 census, down 9% since 2000.
It’s the 1717th largest of 2,568 towns in Pennsylvania by population.
Somerset County grew from 49,461 residents in 1900 to 74,129 in 2020.
Somerset County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 84°F in summer, and winter lows average 19°F. About 47.2 inches of rain and melted snow fall in a typical year, with about 61 inches of snow.
Source: NOAA 1991–2020 climate normals, Confluence 1 Sw Dam, PA weather station (4 miles away).
18,678 jobs at 1,647 businesses in Somerset County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Grocery stores (1 nearby)
Pharmacies (1 nearby)
Museums
Counts are within about 5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
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Shares ZIP codes with Henry Clay, Confluence, Lower Turkeyfoot, Elk Lick, Addison Borough, Ursina and Upper Turkeyfoot.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.