About Mundelein, Illinois
Mundelein, Illinois is a village in Lake County that is approximately 35 miles northwest of Chicago. The first known settler was Peter Shaddle, who built a cabin on what is now the grounds of St. Mary of the Lake Seminary in 1835. Shortly after, tradesmen from England came to the area and became farmers naming the new community Mechanics Grove after the life they left behind. They built schools and churches and expanded the settlement to the Diamond Lake area. During this expansion, John Holcomb purchased a great deal of land in the area and became very involved in the rapid development. In his honor, the unincorporated community changed it's name to "Holcomb." In February of 1909, the Holcomb area incorporated under the name as "Rockefeller." In July, 1909 the village changed it's name again to Area. In 1924, the area changed it's name to "Mundelein" in honor of Archbishop (soon to be Cardinal) George Mundelein.
Mundelein spans 9.99 square miles with 9.59 square miles being land and 0.41 square miles being water. Per the 2020 census, the population of Mundelein was 31,560.
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