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Ottawa County, OK (shown in white) has 470.82 mi² of land area and 13.79 mi² of water resources. The county is bordered by:
The county's elevations range from a low of 738.2' to a high of 1,158.1', with a weighted average of 841' above sea level.
Temperatures range from average lows around 23.4°F to average highs around 90.9°F. A year-round daily temperature averages 57.9°F. Average annual precipation is 49.8". With these temperatures and precipation, the majority of the county scores as an 6B 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 Ottawa County is 30,518 with 11,958 households. These households are spread across 10 unique municipalties (not all shown).