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Perry County, IL (shown in white) has 441.93 mi² of land area and 5.1 mi² of water resources. The county is bordered by:
The county's elevations range from a low of 380.6' to a high of 580.7', with a weighted average of 460.7' above sea level.
Temperatures range from average lows around 22°F to average highs around 88.1°F. A year-round daily temperature averages 56.3°F. Average annual precipation is 48.9". With these temperatures and precipation, the majority of the county scores as an 6B 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 Perry County is 20,619 with 7,872 households. These households are spread across 6 unique municipalties (not all shown).
