Armstrong is a township in Indiana County, Pennsylvania, home to about 2,753 people across 38 square miles. Its ZIP code is 15774, and parts of 15701 are in Armstrong too.
Homes sold for a median of $167 per square foot in the three months ending August 2026, a seller’s market.
Mostly Armstrong; also Plumcreek and South Bend
Mostly Indiana Borough; part is in Armstrong
Each card is that ZIP code’s whole market, including any part outside Armstrong. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | Pittsburgh International Airport (PIT)52 miles away |
|---|---|
| Closer regional airport | Arnold Palmer Regional Airport (LBE)26 miles away |
| Nearest city of 250,000+ | Pittsburgh, PA40 miles away |
| Nearest city of 1 million+ | Philadelphia, PA221 miles away |
Straight-line distances from the center of Armstrong; 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.
Armstrong had 2,761 residents in the 2020 census, down 11% since 2000.
It’s the 968th largest of 2,568 towns in Pennsylvania by population.
Indiana County grew from 42,556 residents in 1900 to 83,246 in 2020.
Indiana County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 83°F in summer, and winter lows average 18°F. About 47.8 inches of rain and melted snow fall in a typical year, with about 46 inches of snow.
Source: NOAA 1991–2020 climate normals, Indiana 3 Se, PA weather station (8 miles away).
23,938 jobs at 1,774 businesses in Indiana County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
3 doctors and other health care providers list an office in Armstrong.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 1 |
|---|---|
| Physical and occupational therapists | 1 |
| Chiropractors | 1 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (1 nearby)
Grocery stores (2 nearby)
Pharmacies (1 nearby)
Libraries
Museums
Theaters and performance venues
Counts are within about 4 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 White, Indiana Borough, Rayne, Plumcreek, Center Township (Indiana County), Brush Valley, South Bend, Washington Township (Indiana County), Cherryhill, Young Township (Indiana County) and Shelocta.
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.