# National Register of Historic Places listings in Blair County, Pennsylvania

This is a list of the National Register of Historic Places listings in Blair County, Pennsylvania.
This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Blair County, Pennsylvania, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in a map.
There are 28 properties and districts listed on the National Register in the county. Two sites are further designated as National Historic Landmarks and another is designated a National Historic Site.
This National Park Service list is complete through NPS recent listings posted March 7, 2025.
Download coordinates as:
* KML
* GPX (all coordinates)
* GPX (primary coordinates)
* GPX (secondary coordinates)

## Current listings

| | Name on the Register | Image | Date listed | Location | Municipality | Description |
| 1 | Allegheny Furnace | Allegheny Furnace | September 6, 1991 (#91001131) | 3400 Crescent Road 40°29′32″N 78°24′26″W﻿ / ﻿40.4922°N 78.4072°W﻿ / 40.4922; -78.4072﻿ (Allegheny Furnace) | Altoona | |
| 2 | Allegheny Portage Railroad National Historic Site | Allegheny Portage Railroad National Historic Site More images | October 15, 1966 (#66000648) | U.S. Route 22 40°27′15″N 78°32′25″W﻿ / ﻿40.4542°N 78.5403°W﻿ / 40.4542; -78.5403﻿ (Allegheny Portage Railroad National Historic Site) | Allegheny Township | Extends into Conemaugh and Cresson Townships in Cambria County |
| 3 | Altoona Armory | Altoona Armory | May 9, 1991 (#91000507) | 327 Frankstown Road 40°28′53″N 78°23′50″W﻿ / ﻿40.4814°N 78.3972°W﻿ / 40.4814; -78.3972﻿ (Altoona Armory) | Logan Township | |
| 4 | Baker Mansion | Baker Mansion | June 5, 1975 (#75001619) | 3500 Baker Boulevard 40°29′26″N 78°24′30″W﻿ / ﻿40.4906°N 78.4083°W﻿ / 40.4906; -78.4083﻿ (Baker Mansion) | Altoona | |
| 5 | Birmingham Bridge | Birmingham Bridge | March 20, 1990 (#90000400) | Over the Juniata River, north of Birmingham off Pennsylvania Route 350 40°38′56″N 78°11′57″W﻿ / ﻿40.6489°N 78.1992°W﻿ / 40.6489; -78.1992﻿ (Birmingham Bridge) | Tyrone Township | Extends into Warriors Mark Township in Huntingdon County |
| 6 | Blair County Courthouse | Blair County Courthouse More images | June 17, 1976 (#76001606) | 423 Allegheny Street 40°25′49″N 78°23′33″W﻿ / ﻿40.4303°N 78.3925°W﻿ / 40.4303; -78.3925﻿ (Blair County Courthouse) | Hollidaysburg | |
| 7 | Broad Avenue Historic District | Broad Avenue Historic District | July 25, 2002 (#02000806) | Roughly along Broad Avenue, from 23rd to 31st Streets 40°30′08″N 78°24′46″W﻿ / ﻿40.5022°N 78.4128°W﻿ / 40.5022; -78.4128﻿ (Broad Avenue Historic District) | Altoona | |
| 8 | Central Trust Company Buildings | Central Trust Company Buildings | November 1, 1984 (#84000271) | 1210–1218 11th Avenue 40°30′55″N 78°24′06″W﻿ / ﻿40.5152°N 78.4017°W﻿ / 40.5152; -78.4017﻿ (Central Trust Company Buildings) | Altoona | |
| 9 | Chimney Rocks | Upload image | May 14, 2021 (#100006540) | Chimney Rocks Park (Chimney Rocks Rd.) 40°25′04″N 78°23′19″W﻿ / ﻿40.4178°N 78.3887°W﻿ / 40.4178; -78.3887﻿ (Chimney Rocks) | Hollidaysburg | |
| 10 | Downtown Altoona Historic District | Downtown Altoona Historic District More images | July 24, 1992 (#92000946) | Roughly bounded by 11th Avenue, 11th Street, 15th Avenue and 13th Street, also 700–1000 Lexington and 900–1000 Howard Avenues 40°30′59″N 78°24′08″W﻿ / ﻿40.516389°N 78.402222°W﻿ / 40.516389; -78.402222﻿ (Downtown Altoona Historic District) | Altoona | Second set of boundaries represents a boundary increase of August 20, 2004 |
| 11 | Etna Furnace | Etna Furnace More images | April 11, 1973 (#73001593) | North of Williamsburg: roughly the area south and east of the bend of the Frankstown Branch Juniata River at Mount Etna 40°31′34″N 78°11′11″W﻿ / ﻿40.526111°N 78.186389°W﻿ / 40.526111; -78.186389﻿ (Etna Furnace) | Catharine Township | Specific boundaries represent a boundary increase of September 6, 1991 |
| 12 | Fort Roberdeau | Fort Roberdeau | May 29, 1974 (#74001753) | West of Culp off U.S. Route 220 40°34′57″N 78°16′26″W﻿ / ﻿40.5825°N 78.273889°W﻿ / 40.5825; -78.273889﻿ (Fort Roberdeau) | Tyrone Township | |
| 13 | Highland Hall | Highland Hall | September 13, 1978 (#78002351) | 517 Walnut Street 40°25′55″N 78°23′32″W﻿ / ﻿40.431944°N 78.392222°W﻿ / 40.431944; -78.392222﻿ (Highland Hall) | Hollidaysburg | |
| 14 | Hollidaysburg Historic District | Hollidaysburg Historic District | December 26, 1985 (#85003158) | Roughly bounded by Spruce, Bella, Blair, and Juniata Streets 40°25′48″N 78°23′29″W﻿ / ﻿40.43°N 78.391389°W﻿ / 40.43; -78.391389﻿ (Hollidaysburg Historic District) | Hollidaysburg | |
| 15 | Horseshoe Curve | Horseshoe Curve More images | November 13, 1966 (#66000647) | 5 miles (8 km) west of Altoona on the Blair County Veterans Memorial Highway (SR 4008) 40°29′52″N 78°29′03″W﻿ / ﻿40.497639°N 78.484167°W﻿ / 40.497639; -78.484167﻿ (Horseshoe Curve) | Logan Township | |
| 16 | Jacob Isett House and Store | Jacob Isett House and Store | March 28, 1997 (#97000290) | Legislative Route 1013, 0.3 miles (0.5 km) south of junction with Legislative Route 1015 40°36′16″N 78°12′25″W﻿ / ﻿40.604444°N 78.206944°W﻿ / 40.604444; -78.206944﻿ (Jacob Isett House and Store) | Tyrone Township | |
| 17 | D.S. Keith Junior High School | D.S. Keith Junior High School | December 11, 2011 (#11000922) | 1318 19th Avenue 40°31′11″N 78°24′32″W﻿ / ﻿40.519615°N 78.408785°W﻿ / 40.519615; -78.408785﻿ (D.S. Keith Junior High School) | Altoona | Part of the Educational Resources of Pennsylvania MPS |
| 18 | Knickerbocker Historic District | Knickerbocker Historic District | February 20, 2002 (#02000064) | 4th, 5th and 6th Avenues, Burgoon Road, 40th and 41st Streets 40°29′11″N 78°24′50″W﻿ / ﻿40.486389°N 78.413889°W﻿ / 40.486389; -78.413889﻿ (Knickerbocker Historic District) | Altoona | |
| 19 | Leap-the-Dips | Leap-the-Dips More images | March 15, 1991 (#91000229) | 700 Park Avenue, Lakemont Park 40°28′15″N 78°23′48″W﻿ / ﻿40.470833°N 78.396667°W﻿ / 40.470833; -78.396667﻿ (Leap-the-Dips) | Altoona | |
| 20 | Llyswen Historic District | Llyswen Historic District More images | July 25, 2002 (#02000807) | Coleridge, Logan, Aldrich bounded by Mill Run and Ward 40°28′59″N 78°24′25″W﻿ / ﻿40.483056°N 78.406944°W﻿ / 40.483056; -78.406944﻿ (Llyswen Historic District) | Altoona | |
| 21 | Mishler Theatre | Mishler Theatre More images | April 11, 1973 (#73001592) | 1208 12th Avenue 40°30′59″N 78°24′07″W﻿ / ﻿40.516389°N 78.401944°W﻿ / 40.516389; -78.401944﻿ (Mishler Theatre) | Altoona | |
| 22 | J.L. Noble School | J.L. Noble School | July 11, 1996 (#96000712) | 209 12th Avenue, Juniata 40°32′16″N 78°23′35″W﻿ / ﻿40.537778°N 78.393056°W﻿ / 40.537778; -78.393056﻿ (J.L. Noble School) | Altoona | |
| 23 | Penn Alto Hotel | Penn Alto Hotel | May 5, 1989 (#89000350) | 12th Street and 13th Avenue 40°31′01″N 78°24′09″W﻿ / ﻿40.516944°N 78.4025°W﻿ / 40.516944; -78.4025﻿ (Penn Alto Hotel) | Altoona | |
| 24 | Roaring Spring Historic District | Roaring Spring Historic District | March 3, 1995 (#95000133) | Roughly bounded by Barley, Lower, Walnut, Roosevelt, California, Hickory, Fairview, Sugar and North Main Streets 40°20′05″N 78°23′56″W﻿ / ﻿40.334722°N 78.398889°W﻿ / 40.334722; -78.398889﻿ (Roaring Spring Historic District) | Roaring Spring | |
| 25 | Daniel Royer House | Daniel Royer House More images | November 3, 1975 (#75001620) | 5 miles (8.0 km) southwest of Williamsburg on Pennsylvania Route 866 40°25′25″N 78°16′13″W﻿ / ﻿40.423611°N 78.270278°W﻿ / 40.423611; -78.270278﻿ (Daniel Royer House) | Woodbury Township | |
| 26 | St. John's Evangelical Lutheran Church | St. John's Evangelical Lutheran Church | September 18, 1978 (#78002350) | Sinking Valley on Old Water Street Road Northeast of Culp 40°35′39″N 78°15′01″W﻿ / ﻿40.594167°N 78.250278°W﻿ / 40.594167; -78.250278﻿ (St. John's Evangelical Lutheran Church) | Tyrone Township | |
| 27 | Tyrone Armory | Tyrone Armory | December 22, 1989 (#89002083) | 956 South Logan Avenue 40°40′11″N 78°14′25″W﻿ / ﻿40.669722°N 78.240278°W﻿ / 40.669722; -78.240278﻿ (Tyrone Armory) | Tyrone | |
| 28 | Tyrone Borough Historic District | Tyrone Borough Historic District | January 21, 1993 (#92001823) | Roughly bounded by West 14th Street, Logan Avenue, Bald Eagle Avenue, the Little Juniata River, West 8th Street and Jefferson Avenue 40°40′19″N 78°14′26″W﻿ / ﻿40.671944°N 78.240556°W﻿ / 40.671944; -78.240556﻿ (Tyrone Borough Historic District) | Tyrone | |
| 29 | Williamsburg Historic District | Williamsburg Historic District More images | May 12, 1995 (#95000518) | Approximately 30 square blocks centered around Second and High Streets 40°27′39″N 78°12′14″W﻿ / ﻿40.460833°N 78.203889°W﻿ / 40.460833; -78.203889﻿ (Williamsburg Historic District) | Williamsburg | |

## Former listings

| | Name on the Register | Image | Date listed | Date removed | Location | City or town | Description |
| 1 | Charles B. Dudley House | Upload image | May 11, 1976 (#76001605) | January 3, 2001 | 802 Lexington Avenue | Altoona | Demolished in late 1999. |