Grass Lake is a city located in Michigan. With a 2020 population of 1,155, it is the 338th largest city in Michigan and the 9739th largest city in the United States. Grass Lake is currently growing at a rate of 0.09% annually but its population has decreased by -1.53% since the most recent census, which recorded a population of 1,173 in 2010. Grass Lake reached it's highest population of 1,171 in 2010. Spanning over 1 miles, Grass Lake has a population density of 1,229 people per square mile.
The average household income in Grass Lake is $76,536 with a poverty rate of 3.36%. The median rental costs in recent years comes to $798 per month, and the median house value is $149,600. The median age in Grass Lake is 34.8 years, 31.8 years for males, and 39.2 years for females. For every 100 females there are 106.9 males.