Home to 31 incorporated municipalities, including growing cities, charming towns, thriving businesses and thousands of acres of prime agricultural land. As Colorado’s third largest county, Weld County covers 3,987 square miles in the northern part of the state and is larger than the size of Rhode Island, Delaware and the District of Columbia combined. The climate is dry and generally mild with warm summers, mild winters and a growing season of approximately 138 days. The land surface is fairly level in the east, with rolling prairies and low hills near the western border. Elevations in the county range from 4,400 to 5,000 feet. The South Platte River and its tributaries, the Cache la Poudre, the Big Thompson, the Little Thompson, the St. Vrain, and other smaller streams, flow into Weld County from the south and west, leaving the county on the east. With available services, location, resources and livability, Weld County offers unbounded opportunity for families to live, work and play. We have one more important ingredient as well: A positive attitude toward growth. For information regarding Weld County demographics, please click here and look under the Helpful Information section. We love being here, and we’d love having you here too!