Blair County Map, Pennsylvania

Blair County Map Collection
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Blair County, Pennsylvania

Blair County is right in the middle of Pennsylvania, surrounded by the Allegheny Mountains. Altoona is the main city, which grew up as a major railroad town. These days, it’s home to the Railroaders Memorial Museum and the famous Horseshoe Curve.
Outdoorsy types love it here. There’s hiking in Canoe Creek State Park and boating on Raystown Lake. Fall’s gorgeous, with the mountain slopes bursting into reds and golds.
Tyrone is another cool little town to explore. But Hollidaysburg is the county seat. Visitors should check out the Baker Mansion in Altoona as it’s a piece of 19th-century life. The area has deep roots in iron-making too.
Category | Details |
---|---|
County Name | Blair County |
County Seat | Hollidaysburg |
Population | Approximately 123,000 |
Cities, Towns, and Communities | Altoona, Hollidaysburg, Tyrone, Bellwood, Duncansville, Williamsburg |
Interstates and Highways | Interstate 99, U.S. Highway 22, U.S. Highway 220, State Highway 764 |
FIPS Code | 42-013 |
Total Area (Land and Water) | 527 square miles (526 sq mi land, 1 sq mi water) |
Adjacent Counties (and Direction) | Centre County (North), Huntingdon County (East), Bedford County (South), Cambria County (West), Clearfield County (Northwest) |
Time Zone | Eastern Time Zone (EST) |
State | Pennsylvania |
Coordinates | 40°28’N, 78°20’W |
Etymology | Named after John Blair, an early prominent citizen |
Major Landmarks | Horseshoe Curve National Historic Landmark, Altoona Railroaders Memorial Museum, Canoe Creek State Park |
Website | Blair County Website |
PHYSICAL MAP
Blair County Topographic Map
Blair County is all about elevation. Long mountain ridges slice through it from northeast to southwest. Valleys lie between, carving narrow paths through the hills. The western part flattens slightly, but the rest is steep and folded. This is one of Pennsylvania’s most rugged-looking counties.

TRANSPORTATION MAP
Blair County Road Map
Blair County’s roads often follow the land. Major highways cut through valleys, while others bend around steep hills. You’ll notice a network of routes centered near Altoona. For a better look at those twists and turns, our zoom tool in our road map below makes it easy.

SATELLITE IMAGERY
Blair County Satellite Map
From above, you’ll mostly see green in Blair County. Forested ridges dominate the view. Altoona breaks that pattern, spreading out in lighter gray tones. Rail lines, rivers, and narrow roads thread through the valleys. The contrast between built and wild is sharp here.

OUTLINE MAP
Blair County Blank Map
Blair County has an uneven, vertical shape. It stretches longer north to south. There isn’t much for straight lines on the border. It hugs ridges and valleys most of the way.

Neighboring Counties
Here are the 5 neighboring counties of Blair County: