Union County, New Jersey

 

Founding: 1857
Parent county: Essex

Namesake: A traditional name
Seat: Elizabeth (1857–)

Land area: 103 square miles

Population (2020): 575,345

Population (historic): 27,780 (1860); 55,571 (1880); 99,353 (1900); 305,209 (1930)

Periods of population growth: pre-1860–1970; 1990–2020

Subdivisions: Five cities; seven boroughs; one town; eight townships

National Register listings: 70

Pre-1940 residences (estimated): 51,678 (25.4%)
Pre-1940 housing survival rate: 56.9%
Pre-1860 housing survival rate (1940): 30.1%

Farm housing in disrepair (1950): 5.1%

Nonfarm housing in disrepair (1950): 2.4%

Average farmhouse value (1930): $4,743
Average outbuilding value (1930): $9,829
Average farmhouse size (1940): 6.6 rooms
Number of farms (1920): 390
Average farm size (1920): 26.5 acres
_________________________________________________________________________________

Elizabeth

Namesake: The Elizabethtown Tract

Founding: 1664 (founding as Elizabethtown); 1740 (incorporation); 1776 (post office)

Population (2020): 137,298

Population (historic): 2,977 (1810); 4,184 (1840); 20,832 (1870); 52,130 (1900); 114,589 (1930)

Periods of population growth: pre-1810–1820; 1830–1930; 1940s; 1960s; 1980–2020
Pre-1940 residences (estimated): 12,527 (28.8%)
_________________________________________________________________________________



View and filter the data. Or see a larger map.
_________________________________________________________________________________

Outstanding Buildings

1. *Smith–Hartshorne–Bowne House (c. 1740/1800/1860). 136 Oak Ridge Road. Clark. Federal.
2. *Andrew Littel House (c. 1760/1830). 31 Horseshoe Road. New Providence.
3. *William Robinson House (c. 1690). 593 Madison Hill Road. Clark.
4. *Hutchings House (c. 1741). 126 Morris Avenue. Springfield. Georgian.
5. *Liberty Hall / William Livingston Estate (1772–1773/1789/1870s). 1003 Morris Avenue. Union. Georgian/Italianate.