Black Creek, WI has a population of 1,404 and is the 13,087th largest city in the United States. The population density is 1,412 per sq mi which is 1515% higher than the Wisconsin average and 1459% higher than the national average. The median age in Black Creek is 32 which is approximately 17% lower than the Wisconsin average of 39. In Black Creek, 57% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 89% of Black Creek residents were born in Wisconsin, 10% were born out of state, 1% were born outside of the United States and 0% were foreign born.