Lebanon County, Pennsylvania

Founding: 1813
Parent counties: Dauphin and Lancaster
Namesake: The city of Lebanon
Seat: Lebanon (1813–)
Land area: 362 square miles
Population (2020): 143,257
Population (historic): 16,988 (1820); 31,831 (1860); 38,476 (1880); 53,827 (1900); 67,103 (1930)
Periods of population growth: pre-1820–2020
Subdivisions: One city; seven boroughs; 14 CDPs; 18 townships
National Register listings: 31
Pre-1940 residences (estimated): 14,004 (24.3%)
Pre-1940 housing survival rate: 75.2%
Pre-1860 housing survival rate (1940): 43.7%

Farm housing in disrepair (1950): 7.5%

Nonfarm housing in disrepair (1950): 3.4%
Average farmhouse value (1930): $1,823
Average outbuilding value (1930): $1,968

Average farmhouse size (1940): 7.3 rooms
Number of farms (1920): 2,372
Average farm size (1920): 60.1 acres
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Lebanon

 
Namesake: The country of Lebanon
Founding: 1753 (platting as Steitztown); 1792 (post office); 1821 (incorporation)
Population (2020): 26,814
Population (historic): 960 (1790); 1,860 (1840); 6,727 (1870); 17,628 (1900); 25,561 (1930)
Periods of population growth: pre-1790–1800; 1810–1960; 2000–2020
Pre-1940 residences (estimated): 4,615 (42.3%)
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Outstanding Buildings

1. *Alden / Robert Alden House (1881). 1012 Alden Way. Cornwall. Tudor Revival.
2. John Uhrich House (c. 1875). 10463 Jonestown Road. East Hanover. Second Empire.
3. Albright Evangelical Church (1860). 233 Albright Road. Heidelberg. Greek Revival.
4. *Alexander Schaeffer Farm (c. 1736/1771). 213 South Carpenter Street. Heidelberg.
5. George Mase Farm. 1810 Prescott Road. Heidelberg.
6. House (c. 1860). 322 Schaeffer Road. Heidelberg.
7. *Tulpehocken Manor / Ley–Urich Farm (1769/1883). 648 West Lincoln Avenue. Jackson. Second Empire.
8. Samuel Long Farm (c. 1870). 16 Bethany Road. Mill Creek. Italianate.
9. *Heinrich Zeller House (1745). 10 North Fort Zeller's Road. Mill Creek.
10. *Millbach Miller's House (1752). 102 South Millbach Road. Mill Creek.
11. *Bindnagle Lutheran Church (1803). 801 Gravel Hill Road. North Londonderry. Federal.
12. Bachman Farm (c. 1870). 925 Horseshoe Pike. South Annville. Italianate/Gothic Revival.
13. *John Bachman House (1813). 81 Mount Wilson Road. South Annville. Federal.
14. Henry Royer Farm (1888). 1401 Prescott Road. South Lebanon. Second Empire.
15. James Kelly Farm (c. 1791). 7050 Colebrook Road. South Londonderry.