Middletown, Delaware

Middletown population, 2020 to 2024

Middletown added 2,294 residents from July 2020 to July 2024, a change of +9.8%. In the latest year it moved by +498. Among 11 Delaware places of 5,000 or more, that growth ranks 5th; the median place changed by +3.3%. The median place of 5,000+ in Delaware has 13,326 people, so Middletown is 1.9 times that size.

Middletown covers 13.50 square miles of land and 0.13 of water, for 1,903 people per square mile of land. The median Delaware place of 5,000+ has 1,762, so Middletown is close to the typical town.

What county Middletown is in

All of Middletown's residents live in New Castle County, which had 588,093 residents in 2024. Middletown holds 4.4% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Middletown

1 ZIP Code Tabulation Area (ZCTA) overlaps Middletown by at least 10% of the ZCTA's or the town's land: 19709. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a town that annexed land after 2020 may reach into ZIP codes not listed here.

Where Middletown is

The Census internal point of Middletown is at 39.443400, -75.717500. Dover, the capital, is 22.5 miles SSE in a straight line. The nearest larger place is Newark, DE (30,506 people), 16.3 miles away. The nearest city of 100,000 or more is Baltimore, MD, 48.7 miles away.

Daylight in Middletown

At 39.44° N, Middletown gets about 14 h 57 min of daylight around the June solstice and 9 h 23 min around the December solstice, a swing of 5 h 34 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Middletown

The eight nearest incorporated places of 1,000+ in Delaware, measured between internal points. The closest is Townsend, 2.8 miles away, with 2,941 people.