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Washington County, TX (shown in white) has 604.19 mi² of land area and 17.56 mi² of water resources. The county is bordered by:
The county's elevations range from a low of 144.4' to a high of 557.7', with a weighted average of 309.6' above sea level.
Temperatures range from average lows around 36.8°F to average highs around 97.7°F. A year-round daily temperature averages 68.3°F. Average annual precipation is 43.9". 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 Washington County is 37,849 with 14,741 households. These households are spread across 2 unique municipalties (not all shown).