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Blue Earth County, MN (shown in white) has 747.84 mi² of land area and 17.75 mi² of water resources. The county is bordered by:
The county's elevations range from a low of 761.1' to a high of 1,151.6', with a weighted average of 1,001.3' above sea level.
Temperatures range from average lows around 6.3°F to average highs around 85°F. A year-round daily temperature averages 46°F. Average annual precipation is 34.9". With these temperatures and precipation, the majority of the county scores as an 4B 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 Blue Earth County is 70,938 with 28,039 households. These households are spread across 12 unique municipalties (not all shown).