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Norfolk County, MA (shown in white) has 396.1 mi² of land area and 48.25 mi² of water resources. The county is bordered by:
The county's elevations range from a low of 0' to a high of 597.1', with a weighted average of 176.2' above sea level.
Temperatures range from average lows around 20.7°F to average highs around 84.9°F. A year-round daily temperature averages 51.4°F. Average annual precipation is 50.6". With these temperatures and precipation, the majority of the county scores as an 6B 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 Norfolk County is 735,618 with 282,251 households. These households are spread across 19 unique municipalties (not all shown).