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Rockcastle County, KY (shown in white) has 316.57 mi² of land area and 1.53 mi² of water resources. The county is bordered by:
The county's elevations range from a low of 820.2' to a high of 1,601', with a weighted average of 1,152.4' above sea level.
Temperatures range from average lows around 24.1°F to average highs around 84.9°F. A year-round daily temperature averages 55.7°F. Average annual precipation is 54.6". 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 Rockcastle County is 16,433 with 6,712 households. These households are spread across 3 unique municipalties (not all shown).