Butler County, Ohio

Founding: 1803
Parent county: Hamilton

Namesake: Richard Butler, Continental Army officer
Seat: Hamilton (1803–)

Land area: 467 square miles

Population (2020): 390,357

Population (historic): 11,150 (1810); 30,789 (1850); 42,579 (1880); 56,870 (1900); 114,084 (1930)

Periods of population growth:  pre-1810–2020

Subdivisions: Seven cities; five villages; eight CDPs; 13 townships

National Register listings: 95

Pre-1940 residences (estimated): 19,566 (13.2%)
Pre-1940 housing survival rate: 51.4%
Pre-1860 housing survival rate (1940): 29.1%

Farm housing in disrepair (1950): 4.9%

Nonfarm housing in disrepair (1950): 5.3%
Average farmhouse value (1930): $2,790
Average outbuilding value (1930): $2,131

Average farmhouse size (1940): 6.2 rooms
Number of farms (1920): 2,534
Average farm size (1920): 85.5 acres
Sources of settlement: Germany, Pennsylvania, New Jersey, Maryland, and Ireland
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Hamilton

Namesake: Fort Hamilton, which once occupied the city's site

Founding: 1803 (platting); 1804 (post office); 1810 (incorporation)

Population (2020): 63,399

Population (historic): 660 (1820); 3,210 (1850); 12,122 (1880); 23,914 (1900); 52,176 (1930)

Periods of population growth: pre-1820–1930; 1940–1960; 2000–2020
Pre-1940 residences (estimated): 9,139 (32.2%)
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Outstanding Buildings

1. *Joseph Hough Farm (1818/1836). 6089 Gray Road. Fairfield. Federal.
2. *John Gray House (1843). 6211 Gray Road. Fairfield. Greek Revival.
3. *Benjamin Fitzrandolph House (1840–1844). 5467 Liberty–Fairfield Road. Fairfield. Greek Revival.
4. *School Number Three (c. 1900). 7793 Morris Road. Fairfield. Romanesque.
5. *Shoemaker House (c. 1885). 3710 Port Union Road. Fairfield. Queen Anne. Razed.
6. *Edward Urmston House (c. 1880). 3800 Princeton Road. Fairfield. Eastlake.
7. *Conrad Windisch House (c. 1875). 2395 Resor Road. Fairfield. Italianate.
8. *School Number One (1877). 638 Ross Road. Fairfield. Italianate.
9. *Elisha Morgan House (c. 1825/1855). 6181 Ross Road. Fairfield.
10. *Gottlieb Mulhauser House (c. 1920). 9310 Seward Road. Fairfield. Prairie. Razed.
11. *Cornelius Lane Farm (c. 1865). 451 Cochran Road. Hanover. Gothic Revival.
12. *Matthew Hueston Farm (1813). 1106 Four Mile Creek Road. Hanover. Federal.
13. Bennington McVicker Farm (1812). 3422 Hamilton–Richmond Road. Hanover.
14. *Robert Beckett Farm (1836). 2019 Stillwell–Beckett Road. Hanover. Greek Revival.
15. *Samuel Hughes House (c. 1855/1889). 5894 Hamilton–Lebanon Road. Lemon. Italianate/Eastlake.
16. Aaron Longstreet House (c. 1855). 6737 Hamilton–Middletown Road. Lemon. Greek Revival/Italianate.
17. *Abraham Harding House (1875). 3551 South Main Street. Lemon. Italianate.
18. *Joseph Stewart Farm (c. 1825). 5601 Butler–Warren County Line Road. Liberty.
19. *Simeon Rosencrans House (c. 1870). 5110 Hamilton–Mason Road. Liberty. Italianate. Razed.
20. *Philip Hughes House (c. 1855). Hamilton–Middletown Road. Liberty. Italianate. Razed.
21. *Elliott Farm (c. 1875). 5850 Millikin Road. Liberty. Italianate.
22. *Hughes School (1887). 5994 Princeton Road. Liberty. Italianate.
23. *Cornelius Murphy House (1846). 6481 Princeton–Glendale Road. Liberty. Greek Revival.
24. *William Webster House (1823). 5173 Yankee Road. Liberty. Federal. Razed.
25. *Peter Schrock House (c. 1865). 814 Carriage Lane. Madison. Italianate.
26. *Peter Kennel House (1837). 5773 Elk Creek Road. Madison. Greek Revival.
27. *Jacob Emrick House (c. 1855). 1021 Middletown–Eaton Road. Madison. Greek Revival/Italianate.
28. *Jacob Banker House (1850). 6152 Middletown–Germantown Road. Madison. Greek Revival.
29. *Paul Sorg House (1904–1905). 8256 Thomas Road. Madison. Shingle.
30. *Frederick Augspurger Farm (c. 1870). 1856 Wayne–Madison Road. Madison. Italianate.
31. *Christian Augspurger Farm (1874). 2070 Woodsdale Road. Madison. Italianate.
32. *Henry Deuscher Farm (1870). 2420 Woodsdale Road. Madison. Italianate.
33. Benjamin Williams House (c. 1855). 6890 Baker Road. Milford. Greek Revival.
34. *William Cooley House (c. 1815). 4185 Hamilton–Richmond Road. Milford. Razed.
35. Morton Irwin Farm (c. 1830). 5700 Hamilton–Richmond Road. Milford.
36. *Lane Mill (1848). Wallace Road and Lane's Mill Road. Milford. Razed.
37. *Daniel Unzicker House (1831). 2975 Oxford–Middletown Road. Milford.
38. John Sohn Farm (c. 1870). 3550 Oxford–Middletown Road. Milford. Italianate.
39. *Daniel Kyger Log House (1803). Shollenbarger Road, north of Lane's Mill Road. Milford. Razed.
40. Evan Evans Farm (1831). 3905 Chapel Road. Morgan.
41. *John Evans Farm (c. 1890). 4445 Cincinnati–Brookville Road. Morgan. Eastlake/Italianate.
42. *John Vaughan Farm (1816). 3756 Hamilton–New London Road. Morgan.
43. *George Yeager Farm (c. 1820). 8940 Howard Road. Morgan.
44. *Andrew Jones Farm (c. 1875). 3301 Millville–Shandon Road. Morgan. Italianate.
45. Evan Morris Farm (c. 1855). 4363 Morgan–Ross Road. Morgan. Greek Revival.
46. Youmans Farm (1818). 3971 New Haven Road. Morgan. Federal.
47. Farm (c. 1820). New Haven Road, north of Hamilton County line. Morgan.
48. *George Jones Farm (c. 1865). 6760 Okeana–Drewersburg Road. Morgan. Razed.
49. *Aaron Austin Farm (1841). 5526 Morning Sun Road. Oxford. Federal.
50. *Henry Orne Lodge (1833). 5349 Coulter Lane. Oxford. Gothic Revival.
51. Farm (c. 1880). 4009 Oxford–Reilly Road. Oxford. Italianate.
52. *Zachariah DeWitt Log House (c. 1805). Oxford–Trenton Road, north of Four Mile Creek. Oxford.
53. *Joseph Morris Farm (1832). 6924 Brown Road. Oxford.
54. Joseph Conkling Farm (c. 1820). 5433 McCoy Road. Reily.
55. *Albin Shaw Farm (1804). 3357 Cincinnati–Brookville Road. Ross.
56. *Cummins Butterfield House (c. 1860). 4352 Cincinnati–Brookville Road. Ross. Gothic Revival.
57. *Brown Farm (1831). 4521 Hamilton–Cleves Road. Ross. Federal.
58. John Ellis Farm (1827). 3702 Morgan–Ross Road. Ross. Federal.
59. *William Cochran Farm (1875). Ross–Millville Road, south of Broshear Drive. Ross. Italianate. Razed.
60. Farm (c. 1895). 3161 Busenbark Road. St. Clair. Queen Anne.
61. *House (c. 1880). 2320 Treiber Road. St. Clair. Italianate.
62. *James Conrey House (1840). 9797 Cincinnati–Columbus Road. Union. Greek Revival.
63. *Christian Moerlein Farm (1928). 4260 Port Union Road. Union. Classical Revival. Razed.
64. *Barnabus Hoel House (c. 1825). 5768 Port Union Road. Union. Razed.
65. *William Shepherd House (c. 1880). 1 Shepherd Lane. Union. Italianate.
66. John Withrow House (c. 1880). 4162 Tolbert Road. Wayne. Italianate.
67. *Christian Augspurger Farm (1847–1848). 5158 Trenton–Oxford Road. Wayne. Greek Revival.
68. *Burns Wilson Farm (c. 1850). 4343 Wayne's Trace Road. Wayne. Greek Revival/Italianate.
69. John Long Farm (c. 1845). 3838 West Elkton Road. Wayne. Greek Revival.
70. *William Mack Farm (c. 1880). 4440 West Elkton Road. Wayne. Italianate.
71. Robert Withrow House (c. 1840). 4130 Withrow Road. Wayne.