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Municipal Boundaries

Overview

Jefferson County, WA (shown in white) has 1,803.73 mi² of land area and 384.17 mi² of water resources. The county is bordered by:


The county's elevations range from a low of 0' to a high of 7,752.6', with a weighted average of 1,864.5' above sea level.

Temperatures range from average lows around 32.3°F to average highs around 75.1°F. A year-round daily temperature averages 50°F. Average annual precipation is 106.9". With these temperatures and precipation, the majority of the county scores as an 8B 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 Jefferson County is 34,142 with 16,296 households. These households are spread across 6 unique municipalties (not all shown).