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Municipal Boundaries

Overview

Marshall County, IA (shown in white) has 572.5 mi² of land area and 0.7 mi² of water resources. The county is bordered by:


The county's elevations range from a low of 833.3' to a high of 1,148.3', with a weighted average of 984.9' above sea level.

Temperatures range from average lows around 9.8°F to average highs around 84.2°F. A year-round daily temperature averages 47.9°F. Average annual precipation is 38.9". With these temperatures and precipation, the majority of the county scores as an 5A 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 Marshall County is 40,449 with 15,513 households. These households are spread across 14 unique municipalties (not all shown).