Weldon Spring, Missouri

Weldon Spring population, 2020 to 2024

Weldon Spring lost 29 residents from July 2020 to July 2024, a change of -0.5%. In the latest year it moved by +22. Among 135 Missouri places of 5,000 or more, that growth ranks 93rd; the median place changed by +1.2%. The median place of 5,000+ in Missouri has 12,239 people, so Weldon Spring is 43% of it.

Weldon Spring covers 7.65 square miles of land and 0.13 of water, for 693 people per square mile of land. The median Missouri place of 5,000+ has 1,448, so Weldon Spring is less dense than the typical town.

What county Weldon Spring is in

All of Weldon Spring's residents live in St. Charles County, which had 423,726 residents in 2024. Weldon Spring holds 1.3% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Weldon Spring

1 ZIP Code Tabulation Area (ZCTA) overlaps Weldon Spring by at least 10% of the ZCTA's or the city's land: 63304. 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 Weldon Spring is

The Census internal point of Weldon Spring is at 38.709400, -90.652500. Jefferson City, the capital, is 82.5 miles W in a straight line. The nearest larger place is Cottleville, MO (6,378 people), 2.9 miles away. The nearest city of 100,000 or more is St. Louis, MO, 22.6 miles away.

Daylight in Weldon Spring

At 38.71° N, Weldon Spring gets about 14 h 53 min of daylight around the June solstice and 9 h 27 min around the December solstice, a swing of 5 h 25 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Weldon Spring

The eight nearest incorporated places of 1,000+ in Missouri, measured between internal points. The closest is Cottleville, 2.9 miles away, with 6,378 people.