St. Henry, Ohio

St. Henry population, 2020 to 2024

St. Henry added 6 residents from July 2020 to July 2024, a change of +0.2%. In the latest year it moved by +6.

St. Henry covers 1.73 square miles of land and 0.05 of water, for 1,508 people per square mile of land. The median Ohio place of 5,000+ has 2,000, so St. Henry is less dense than the typical town.

What county St. Henry is in

All of St. Henry's residents live in Mercer County, which had 42,648 residents in 2024. St. Henry holds 6.1% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in St. Henry

1 ZIP Code Tabulation Area (ZCTA) overlaps St. Henry by at least 10% of the ZCTA's or the village's land: 45883. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a village that annexed land after 2020 may reach into ZIP codes not listed here.

Where St. Henry is

The Census internal point of St. Henry is at 40.420300, -84.631500. Columbus, the capital, is 91.7 miles ESE in a straight line. The nearest larger place is Coldwater, OH (4,729 people), 4.3 miles away. The nearest city of 100,000 or more is Dayton, OH, 49.5 miles away.

Daylight in St. Henry

At 40.42° N, St. Henry gets about 15 h 04 min of daylight around the June solstice and 9 h 17 min around the December solstice, a swing of 5 h 47 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near St. Henry

The eight nearest incorporated places of 1,000+ in Ohio, measured between internal points. The closest is Coldwater, 4.3 miles away, with 4,729 people.