Newcastle, Oklahoma

Newcastle population, 2020 to 2024

Newcastle added 3,507 residents from July 2020 to July 2024, a change of +31.4%. In the latest year it moved by +692. Among 75 Oklahoma places of 5,000 or more, that growth ranks 1st; the median place changed by +2.2%. The median place of 5,000+ in Oklahoma has 12,358 people, so Newcastle is 1.2 times that size.

Newcastle covers 60.06 square miles of land and 1.15 of water, for 244 people per square mile of land. The median Oklahoma place of 5,000+ has 896, so Newcastle is less dense than the typical town.

What county Newcastle is in

All of Newcastle's residents live in McClain County, which had 48,434 residents in 2024. Newcastle holds 30.3% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Newcastle

2 ZIP Code Tabulation Areas (ZCTAs) overlap Newcastle by at least 10% of the ZCTA's or the city's land: 73065, 73072. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Newcastle is

The Census internal point of Newcastle is at 35.242400, -97.595300. Oklahoma City, the capital, is 18.0 miles NNE in a straight line. The nearest larger place is Moore, OK (63,845 people), 9.0 miles away. The nearest city of 100,000 or more is Norman, OK, 14.1 miles away.

Daylight in Newcastle

At 35.24° N, Newcastle gets about 14 h 32 min of daylight around the June solstice and 9 h 47 min around the December solstice, a swing of 4 h 45 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Newcastle

The eight nearest incorporated places of 1,000+ in Oklahoma, measured between internal points. The closest is Blanchard, 7.4 miles away, with 9,869 people.