Hudson County, New Jersey

Founding: 1840
Parent county: Bergen

Namesake: The Hudson River
Seat: Jersey City (1840–)

Land area: 46 square miles

Population (2020): 724,854

Population (historic): 9,483 (1840); 62,717 (1860); 187,944 (1880); 386,048 (1900); 690,730 (1930)

Periods of population growth: pre-1840–1930; 1990–2020

Subdivisions: Four cities; one borough; five towns; two townships

National Register listings: 65

Pre-1940 residences (estimated): 99,813 (35.9%)
Pre-1940 housing survival rate: 51.5%
Pre-1860 housing survival rate (1940): 16.8%

Housing in disrepair (1950): 4.4%

Average farmhouse value (1930): $4,774
Average outbuilding value (1930): $4,105
Number of farms (1920): 98
Average farm size (1920): 5.9 acres
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Jersey City

Namesake: The state of New Jersey

Founding: 1807 (post office); 1820 (incorporation)

Population (2020): 292,449

Population (historic): 3,072 (1840); 29,226 (1860); 120,722 (1880); 206,433 (1900); 316,715 (1930)

Periods of population growth: pre-1840–1930; 1980–2020
Pre-1940 residences (estimated): 42,528 (37.9%)
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Outstanding Buildings

1. *Van Wagenen House (c. 1750/1842/1860). 298 Academy Street. Jersey City. Italianate/Greek Revival.