Somerset County, New Jersey

Founding: 1688
Parent county: Middlesex

Namesake: Somerset, England
Seat: Millstone (1688–1784); Somerville (1784–)

Land area: 302 square miles

Population (2020): 345,361

Population (historic): 12,296 (1790); 17,455 (1840); 23,510 (1870); 32,948 (1900); 65,132 (1930)

Periods of population growth: pre-1790–1830; 1840–2020

Subdivisions: 12 boroughs; nine townships

Pre-1940 residences (estimated): 12,606 (10%)
Pre-1940 housing survival rate: 71.3%
Pre-1860 housing survival rate (1940): 40.9%

Farm housing in disrepair (1950): 3.4%

Nonfarm housing in disrepair (1950): 2.5%

Average farmhouse value (1930): $4,857
Average outbuilding value (1930): $4,038
Average farmhouse size (1940): 7.2 rooms
Number of farms (1920): 1,454
Average farm size (1920): 77.7 acres
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Somerville

Namesake: The Somerville family, which owned the city site

Founding: circa 1755 (founding); 1827 (post office); 1863 (incorporation)

Population (2020): 12,346

Population (historic): 2,236 (1870); 3,861 (1890); 5,060 (1910); 8,255 (1930)

Periods of population growth: pre-1870–1970; 1990s; 2010s
Pre-1940 residences (estimated): 1,370 (26.1%)
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Outstanding Buildings

1. Jacobus Vanderveer House (c. 1775). 3055 River Road. Bedminster.
2. Van Dorn Mill (1842–1843). 287 Childs Road. Bernards.
3. Compton House (1764/1858). 3155 Valley Road. Bernards.
4. Jacob Ten Eyck Farm (c. 1730/1792). 234 Vanderveer Avenue. Branchburg.
5. Philip Van Horne House (c. 1750). 941 East Main Street. Bridgewater.
6. Tulipwood / Stephen Williams House (1892). 1165 Hamilton Street. Franklin. Shingle.
7. Rockingham / Higgins–Berrien–Cruser House (c. 1710/1760/1802). 84 Laurel Avenue. Franklin.
8. Benjamin Hageman Farm (1861). 209 South Middlebush Road. Franklin. Italianate.
9. John Wyckoff House (c. 1730). 215 South Middlebush Road. Franklin.
10. Van Liew–Suydam House (c. 1780/1875). 310 South Middlebush Road. Franklin. Italianate.
11. Abraham Cortelyou House (c. 1855). 465 Amwell Road. Hillsborough. Italianate.
12. House (c. 1880). 1304 Orchard Drive. Hillsborough. Stick.
13. John Veghte House (c. 1875). 735 River Road. Hillsborough. Second Empire.
14. Maplewood / John Voorhees Farm (c. 1845). Burnt Hill Road, north of Rock Brook. Montgomery. Greek Revival. Razed.
15. John Whitlock House (c. 1835). 308 Beden's Brook Road. Montgomery. Federal.
16. Dirck Gulick House (1752). 506 Belle Mead–Blawenburg Road. Montgomery.
17. Voorhees House (c. 1840). 172 Georgetown–Franklin Pike. Montgomery. Greek Revival.
18. Laurence Vanderveer House (1866). 150 Millstone River Road. Montgomery. Italianate.
19. Peter Vanderveer Farm (1860–1862). 212 Millstone River Road. Montgomery. Italianate.
20. Garret Wyckoff House (c. 1803/1870). 618 Millstone River Road. Montgomery. Italianate.
21. Rynear Staats Farm (c. 1845). 696 Millstone River Road. Montgomery. Italianate.
22. John Vermeule House (c. 1787). 223 Rock Avenue. North Plainfield.
23. Ford House (c. 1760/1830). 1 Reinman Road. Warren.

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