Jamesburg, New Jersey

Jamesburg population, 2020 to 2024

Jamesburg added 135 residents from July 2020 to July 2024, a change of +2.4%. In the latest year it moved by +79. Among 194 New Jersey places of 5,000 or more, that growth ranks 65th; the median place changed by +1.8%. The median place of 5,000+ in New Jersey has 11,231 people, so Jamesburg is 52% of it.

Jamesburg covers 0.88 square miles of land, for 6,669 people per square mile of land. The median New Jersey place of 5,000+ has 4,474, so Jamesburg is denser than the typical town.

What county Jamesburg is in

All of Jamesburg's residents live in Middlesex County, which had 890,119 residents in 2024. Jamesburg holds 0.7% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Jamesburg

1 ZIP Code Tabulation Area (ZCTA) overlaps Jamesburg by at least 10% of the ZCTA's or the borough's land: 08831. 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 Jamesburg is

The Census internal point of Jamesburg is at 40.349000, -74.440200. Trenton, the capital, is 18.8 miles WSW in a straight line. The nearest larger place is Spotswood, NJ (8,306 people), 4.0 miles away. The nearest city of 100,000 or more is Elizabeth, NJ, 25.5 miles away.

Daylight in Jamesburg

At 40.35° N, Jamesburg gets about 15 h 03 min of daylight around the June solstice and 9 h 18 min around the December solstice, a swing of 5 h 46 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Jamesburg

The eight nearest incorporated places of 1,000+ in New Jersey, measured between internal points. The closest is Helmetta, 2.2 miles away, with 2,504 people.