Marietta, Ohio

Marietta population, 2020 to 2024

Marietta lost 322 residents from July 2020 to July 2024, a change of -2.4%. In the latest year it moved by -45. Among 254 Ohio places of 5,000 or more, that growth ranks 241st; the median place changed by -0.4%. The median place of 5,000+ in Ohio has 13,905 people, so Marietta is 94% of it.

Marietta covers 8.43 square miles of land and 0.32 of water, for 1,547 people per square mile of land. The median Ohio place of 5,000+ has 2,000, so Marietta is less dense than the typical town.

What county Marietta is in

All of Marietta's residents live in Washington County, which had 58,332 residents in 2024. Marietta holds 22.4% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Marietta

1 ZIP Code Tabulation Area (ZCTA) overlaps Marietta by at least 10% of the ZCTA's or the city's land: 45750. 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 Marietta is

The Census internal point of Marietta is at 39.423200, -81.446400. Columbus, the capital, is 90.6 miles WNW in a straight line. The nearest larger place is Parkersburg, WV (28,834 people), 12.3 miles away. The nearest city of 100,000 or more is Columbus, OH, 90.5 miles away.

Daylight in Marietta

At 39.42° N, Marietta 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 Marietta

The eight nearest incorporated places of 1,000+ in Ohio, measured between internal points. The closest is Belpre, 12.6 miles away, with 6,588 people.