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Castro County, TX (shown in white) has 894.44 mi² of land area and 4.85 mi² of water resources. The county is bordered by:
The county's elevations range from a low of 3,467.8' to a high of 4,019', with a weighted average of 3,773' above sea level.
Temperatures range from average lows around 19.7°F to average highs around 92.2°F. A year-round daily temperature averages 57.1°F. Average annual precipation is 19.1". With these temperatures and precipation, the majority of the county scores as an 7A 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 Castro County is 7,263 with 2,543 households. These households are spread across 4 unique municipalties (not all shown).
