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Clatsop County, OR (shown in white) has 828.1 mi² of land area and 255.49 mi² of water resources. The county is bordered by:
The county's elevations range from a low of 0' to a high of 3,077.4', with a weighted average of 659.3' above sea level.
Temperatures range from average lows around 34.2°F to average highs around 72.4°F. A year-round daily temperature averages 51.1°F. Average annual precipation is 92.7". 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 Clatsop County is 41,556 with 17,749 households. These households are spread across 10 unique municipalties (not all shown).