Franklin County, Ohio

Founding: 1803
Parent county: Ross

Namesake: Benjamin Franklin, Founding Father
Seats: Franklinton (1803–1824); Columbus (1824–)

Land area: 532 square miles

Population (2020): 1,323,807

Population (historic): 3,486 (1810); 42,909 (1850); 86,797 (1880); 164,460 (1900); 361,055 (1930)

Periods of population growth: pre-1810–2020

Subdivisions: 16 cities; 10 villages; five CDPs; 17 townships

National Register listings: 351

Pre-1940 residences (estimated): 60,679 (11.4%)
Pre-1940 housing survival rate: 53.1%
Pre-1860 housing survival rate (1940): 20.1%

Farm housing in disrepair (1950): 7.9%

Nonfarm housing in disrepair (1950): 5.2%

Average farmhouse value (1930): $2,531
Average outbuilding value (1930): $1,952
Average farmhouse size (1940): 6.4 rooms
Number of farms (1920): 3,778
Average farm size (1920): 70.2 acres
Sources of settlement: Pennsylvania, Virginia, Germany, Maryland, and Connecticut
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Columbus

Namesake: Christopher Columbus, Italian explorer

Founding: 1812 (platting); 1813 (post office); 1816 (incorporation)

Population (2020): 905,748

Population (historic): 2,435 (1830); 18,554 (1860); 51,647 (1880); 125,560 (1900); 290,564 (1930)

Periods of population growth: pre-1830–2020
Pre-1940 residences (estimated): 46,576 (12.1%)
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Outstanding Buildings

1. *Gideon Hart House (c. 1820). 636 Hempstead Road. Blendon.
2. *Ebenezer Washburn House (1833). 675 Sunbury Road. Blendon.
3. *Timothy Lee House (1824). 1100 Sunbury Road. Blendon. Greek Revival.
4. *John McDannald House (c. 1860). 5847 Sunbury Road. Blendon. Italianate. Razed.
5. *Calvin McDannald House (c. 1880). 5187 Westerville Road. Blendon. Italianate.
6. *John Huffman House (1823–1825). 1350 Dyer Road. Franklin. Razed.
7. *Christian Herr Farm (1890). 1451 Rathmell Road. Hamilton. Queen Anne.
8. *Washington Rees Farm (c. 1840/1870). 5001 Rees Road. Hamilton. Eclectic.
9. *Theodore Leithart House (c. 1876). 2650 Columbus Street. Jackson. Italianate.
10. *John Brown House (c. 1880). 1571 Dyer Road. Jackson. Italianate.
11. *John Breckinridge House (c. 1875). 4259 Jackson Pike. Jackson. Italianate.
12. *Ephraim Borror Farm (c. 1875). Jackson Pike, south of Hibbs Road. Jackson. Italianate. Razed.
13. *David Headley House (c. 1875). 6976 Clark State Road. Jefferson. Italianate.
14. *Isaac Souder House (1837). 6020 Havens Corners Road. Jefferson.
15. *Joshua Stevenson Farm (c. 1835). 5101 Bowen Road. Madison. Federal.
16. *Charles Pontius House (c. 1830). 7785 Braun Road. Madison.
17. *John Stevenson House (1859). 4901 Ebright Road. Madison. Italianate.
18. George Long Farm (c. 1845). 5411 Elder Road. Madison. Greek Revival.
19. *John Rager Farm (c. 1840/1910). 8020 Groveport Road. Madison.
20. *Seymour Farm (c. 1890). 6269 Lithopolis Road. Madison. Eastlake.
21. William Whaley Farm (c. 1825). 8677 Oregon Road. Madison.
22. *Howard Deen House (c. 1885). 1891 Sunbury Road. Mifflin. Italianate.
23. *Frederick Agler House (1824). 2621 Sunbury Road. Mifflin. Federal.
24. *Evan Jones House (c. 1880). 3240 Alton–Darby Creek Road. Norwich. Italianate.
25. *Wesley Chapel Methodist Church (1891). 3299 Dublin Road. Norwich. Gothic Revival.
26. *Henry McCracken House (c. 1840). 3983 Dublin Road. Norwich.
27. *Samuel Davis House (1816). 4264 Dublin Road. Norwich. Federal.
28. *St. James Lutheran Church (1871). 5660 Trabue Road. Norwich. Gothic Revival.
29. *John Kenny House (c. 1840). 3730 Kennybrook Lane. Perry. Federal.
30. *Zadok Vesey House (c. 1835). 5961 East Livingston Avenue. Truro. Greek Revival.
31. *Joseph Thompson House (c. 1885). 5051 Brand Road. Washington. Italianate. Razed.
32. *Asher Brand Farm (1867). 5281 Brand Road. Washington. Italianate.
33. *Benjamin Sells Farm (1837–1842). 4586 Hayden Run Road. Washington. Greek Revival.

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