Watchung, New Jersey

Watchung population, 2020 to 2024

Watchung added 163 residents from July 2020 to July 2024, a change of +2.5%. In the latest year it moved by +109. Among 194 New Jersey places of 5,000 or more, that growth ranks 62nd; the median place changed by +1.8%. The median place of 5,000+ in New Jersey has 11,231 people, so Watchung is 59% of it.

Watchung covers 6.02 square miles of land and 0.03 of water, for 1,097 people per square mile of land. The median New Jersey place of 5,000+ has 4,474, so Watchung is less dense than the typical town.

What county Watchung is in

All of Watchung's residents live in Somerset County, which had 357,467 residents in 2024. Watchung holds 1.8% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Watchung

1 ZIP Code Tabulation Area (ZCTA) overlaps Watchung by at least 10% of the ZCTA's or the borough's land: 07069. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a borough that annexed land after 2020 may reach into ZIP codes not listed here.

Where Watchung is

The Census internal point of Watchung is at 40.642800, -74.436200. Trenton, the capital, is 33.6 miles SSW in a straight line. The nearest larger place is North Plainfield, NJ (23,072 people), 1.5 miles away. The nearest city of 100,000 or more is Elizabeth, NJ, 12.8 miles away.

Daylight in Watchung

At 40.64° N, Watchung gets about 15 h 05 min of daylight around the June solstice and 9 h 16 min around the December solstice, a swing of 5 h 50 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Watchung

The eight nearest incorporated places of 1,000+ in New Jersey, measured between internal points. The closest is North Plainfield, 1.5 miles away, with 23,072 people.