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Harnett County, NC (shown in white) has 594.93 mi² of land area and 6.29 mi² of water resources. The county is bordered by:
The county's elevations range from a low of 98.4' to a high of 469.2', with a weighted average of 246.7' above sea level.
Temperatures range from average lows around 29.9°F to average highs around 91°F. A year-round daily temperature averages 61.5°F. Average annual precipation is 49.4". With these temperatures and precipation, the majority of the county scores as an 8A 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 Harnett County is 144,920 with 52,305 households. These households are spread across 10 unique municipalties (not all shown).