Overview

Decatur County, IN (shown in white) has 372.57 mi² of land area and 0.76 mi² of water resources. The county is bordered by:

• Bartholomew County, IN
• Franklin County, IN
• Jennings County, IN
• Ripley County, IN
• Rush County, IN
• Shelby County, IN

The county's elevations range from a low of 698.8' to a high of 1,099.1', with a weighted average of 893.9' above sea level.

Temperatures range from average lows around 21.7°F to average highs around 84.5°F. A year-round daily temperature averages 53.9°F. Average annual precipation is 48.8". With these temperatures and precipation, the majority of the county scores as an 6A using the USDA Plant Hardiness Zone Map (the standard by which gardeners and growers can determine which perennial plants are most likely to thrive in a location).

The estimated population of Decatur County is 26,643 with 10,545 households. These households are spread across 14 unique municipalties (not all shown).