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Smith County, TX (shown in white) has 921.47 mi² of land area and 28.25 mi² of water resources. The county is bordered by:
The county's elevations range from a low of 259.2' to a high of 629.9', with a weighted average of 446.6' above sea level.
Temperatures range from average lows around 35.6°F to average highs around 95.3°F. A year-round daily temperature averages 66.5°F. Average annual precipation is 48". With these temperatures and precipation, the majority of the county scores as an 8B 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 Smith County is 250,130 with 94,782 households. These households are spread across 11 unique municipalties (not all shown).