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Austin County, TX (shown in white) has 646.5 mi² of land area and 9.88 mi² of water resources. The county is bordered by:
The county's elevations range from a low of 75.5' to a high of 459.3', with a weighted average of 236.5' above sea level.
Temperatures range from average lows around 39.9°F to average highs around 96.7°F. A year-round daily temperature averages 69.2°F. Average annual precipation is 45.6". With these temperatures and precipation, the majority of the county scores as an 9A 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 Austin County is 32,439 with 12,477 households. These households are spread across 8 unique municipalties (not all shown).