Marianna is a borough in Washington County, Pennsylvania, home to about 585 people across 2.0 square miles. It has no ZIP code of its own: it’s part of 15345.
Homes sold for a median of $57 per square foot in the three months ending August 2026, a buyer’s market.
Mostly West Bethlehem; part is in Marianna
Each card is that ZIP code’s whole market, including any part outside Marianna. 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)32 miles away |
|---|---|
| Nearest city of 250,000+ | Pittsburgh, PA29 miles away |
| Nearest city of 1 million+ | Philadelphia, PA263 miles away |
Straight-line distances from the center of Marianna; 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.
Marianna had 399 residents in the 2020 census, down 36% since 2000.
It’s the 2085th largest of 2,568 towns in Pennsylvania by population.
Washington County grew from 92,181 residents in 1900 to 209,349 in 2020.
Washington 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 19°F. About 43 inches of rain and melted snow fall in a typical year, with about 30 inches of snow.
Source: NOAA 1991–2020 climate normals, Waynesburg 1 E, PA weather station (10 miles away).
84,410 jobs at 5,340 businesses in Washington 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.
Libraries
Counts are within about 1 mile 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 West Bethlehem, Amwell and Morgan.
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.