St. Louis, Missouri

St. Louis population, 2020 to 2024

St. Louis lost 20,620 residents from July 2020 to July 2024, a change of -6.9%. In the latest year it moved by -3,077. Among 135 Missouri places of 5,000 or more, that growth ranks 134th; the median place changed by +1.2%. The median place of 5,000+ in Missouri has 12,239 people, so St. Louis is 22.9 times that size.

St. Louis covers 61.72 square miles of land and 4.45 of water, for 4,532 people per square mile of land. The median Missouri place of 5,000+ has 1,448, so St. Louis is denser than the typical town.

What county St. Louis is in

All of St. Louis's residents live in St. Louis city, which had 279,695 residents in 2024. St. Louis holds 100.0% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in St. Louis

21 ZIP Code Tabulation Areas (ZCTAs) overlap St. Louis by at least 10% of the ZCTA's or the city's land: 63101, 63102, 63103, 63104, 63106, 63107, 63108, 63109, 63110, 63111, 63112, 63113, 63115, 63116, 63118, 63120, 63137, 63139, 63143, 63147, 63155. 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 St. Louis is

The Census internal point of St. Louis is at 38.635700, -90.244600. Jefferson City, the capital, is 104.2 miles W in a straight line. The nearest larger place is Indianapolis, IN (891,484 people), 233.1 miles away. The nearest city of 100,000 or more is Springfield, IL, 86.1 miles away. The ground at the internal point is about 143 m (469 ft) above sea level.

Daylight in St. Louis

At 38.64° N, St. Louis gets about 14 h 52 min of daylight around the June solstice and 9 h 28 min around the December solstice, a swing of 5 h 24 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026. Month-by-month sunrise and sunset times are on the St. Louis daylight page.

Places near St. Louis

The eight nearest incorporated places of 1,000+ in Missouri, measured between internal points. The closest is Wellston, 3.8 miles away, with 1,590 people.