Overview

Lake County, IN (shown in white) has 498.88 mi² of land area and 127.75 mi² of water resources. The county is bordered by:

• Cook County, IL
• Jasper County, IN
• Kankakee County, IL
• Newton County, IN
• Porter County, IN
• Will County, IL

The county's elevations range from a low of 577.4' to a high of 797.2', with a weighted average of 642' above sea level.

Temperatures range from average lows around 16.8°F to average highs around 83°F. A year-round daily temperature averages 50.1°F. Average annual precipation is 43.5". With these temperatures and precipation, the majority of the county scores as an 5B 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 Lake County is 506,283 with 197,787 households. These households are spread across 22 unique municipalties (not all shown).