Subscribe to our YouTube channel, Facebook group, Instagram and Twitter X. Collin County is one of the fastest growing regions in the country with an estimated population of 1,149,101 with a growth rate of 2.52% in the past year. Collin County Magazine shares your Local North Texas News and Success Stories and supports local business in @collincountydfw – Not operated by by the County – Go to CollinCountyTX.gov for official county business