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Grimes County, TX (shown in white) has 787.47 mi² of land area and 14.14 mi² of water resources. The county is bordered by:
The county's elevations range from a low of 147.6' to a high of 449.5', with a weighted average of 298.6' above sea level.
Temperatures range from average lows around 36.2°F to average highs around 97.2°F. A year-round daily temperature averages 68.1°F. Average annual precipation is 47.9". 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 Grimes County is 33,362 with 11,690 households. These households are spread across 9 unique municipalties (not all shown).