Monmouth County, New Jersey

Founding: 1683
Parent county: Unorganized territory
Namesake: Monmouthshire, Wales
Seat: Freehold (1714–)
Land area: 469 square miles
Population (2020): 643,615
Population (historic): 16,918 (1790); 32,909 (1840); 46,195 (1870); 82,057 (1900); 147,209 (1930)
Periods of population growth: pre-1790–1840; 1850–2020
Subdivisions: Two cities; 35 boroughs; one village; 21 CDPs; 15 townships
Pre-1940 residences (estimated): 36,438 (13.9%)
Pre-1940 housing survival rate: 62.6%
Pre-1860 housing survival rate (1940): 33.9%

Farm housing in disrepair (1950): 6.3%

Nonfarm housing in disrepair (1950): 4.7%

Average farmhouse value (1930): $3,829
Average outbuilding value (1930): $3,102
Average farmhouse size (1940): 6.9 rooms
Number of farms (1920): 2,445
Average farm size (1920): 54 acres
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Freehold

 
Namesake: Freehold Township
Founding: 1714 (founding); 1801 (post office); 1869 (incorporation)
Population (2020): 12,538
Population (historic): 2,432 (1880); 2,934 (1900); 6,894 (1930)
Periods of population growth: pre-1880–1970; 1980–2020
Pre-1940 residences (estimated): 920 (20.9%)
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Outstanding Buildings

1. North American Phalanx (c. 1845/1847). Phalanx Road, at Lovett Road. Colt's Neck. Italianate. Razed.
2. Ryall House (c. 1875). 53 State Route 537. Colt's Neck. Second Empire.
3. William Covenhoven House (1752–1753). 150 West Main Street. Freehold.
4. William Holmes House (1754). 6874 Longstreet Road. Holmdel.
5. Robert Cooke Medical Office (c. 1823). 67 McCampbell Road. Holmdel. Federal.
6. Joshua Holmes House (1874). 184 State Route 34. Holmdel. Italianate.
7. Archibald Cobb House (1872). 275 Englishtown–Freehold Road. Manalapan. Italianate.
8. Old Brick Reformed Church (1869). 490 Newman Springs Road. Marlboro. Gothic Revival.
9. MacLeod–Rice House (1894/1901/1915). 900 Leonardville Road. Middletown. Classical Revival.
10. All Saints Memorial Episcopal Church (1864). 202 Navesink Avenue. Middletown. Gothic Revival.
11. All Saints Rectory (1865). 202 Navesink Avenue. Middletown. Gothic Revival.
12. Brinley–MacGregor House (c. 1780/1830). 407 Monmouth Road. Ocean. Greek Revival.
13. Burtis House (c. 1855). 116 Allentown–Davis Station Road. Upper Freehold. Italianate.
14. Merino Hill / Samuel Wright Farm (c. 1735/1765/1810/1890). 678 State Route 524. Upper Freehold. Federal/Italianate.
15. Farm (1766). 3 Wygant Road. Upper Freehold.

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