Eureka, Missouri

Eureka population, 2020 to 2024

Eureka added 1,501 residents from July 2020 to July 2024, a change of +12.7%. In the latest year it moved by +141. Among 135 Missouri places of 5,000 or more, that growth ranks 10th; the median place changed by +1.2%. The median place of 5,000+ in Missouri has 12,239 people, so Eureka is 1.1 times that size.

Eureka covers 11.16 square miles of land and 0.17 of water, for 1,190 people per square mile of land. The median Missouri place of 5,000+ has 1,448, so Eureka is less dense than the typical town.

The 2 counties Eureka spans

Eureka crosses county lines. The Census county-part estimates split its 13,277 residents as follows; St. Louis County holds 99.4% of them. The shaded shapes are on the map above; dots mark the eight nearest places.

ZIP codes in Eureka

2 ZIP Code Tabulation Areas (ZCTAs) overlap Eureka by at least 10% of the ZCTA's or the city's land: 63025, 63069. 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 Eureka is

The Census internal point of Eureka is at 38.498500, -90.645400. Jefferson City, the capital, is 82.7 miles W in a straight line. The nearest larger place is Wildwood, MO (35,082 people), 5.6 miles away. The nearest city of 100,000 or more is St. Louis, MO, 23.6 miles away.

Daylight in Eureka

At 38.50° N, Eureka gets about 14 h 51 min of daylight around the June solstice and 9 h 29 min around the December solstice, a swing of 5 h 23 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Eureka

The eight nearest incorporated places of 1,000+ in Missouri, measured between internal points. The closest is Wildwood, 5.6 miles away, with 35,082 people.