Zip code 60112 in Cortland, Illinois, is classified as a "White Majority" community with moderate diversity as of 2022. The white population comprises 67% of the total, with Hispanic and Black populations representing significant minorities at 18% and 10% respectively. The area has a population of 819 people and a median income of $73,248, which is slightly above the national median.

Over the past decade, Cortland has transitioned from a "Low Diversity" community to one with "Moderate Diversity". In 2013, the area was characterized by a "White Majority" at 76%, with minimal representation from other groups. By 2022, the white population decreased to 67%, while other racial groups, particularly Hispanic and Black populations, increased their representation.

The Hispanic population has remained relatively stable, fluctuating between 16-22% over the years, while the Black population has shown a consistent increase from 3% in 2013 to 10% in 2022. This trend indicates a slow but steady diversification of the community, potentially categorizing it as a "Transitional Community". The emergence of a significant "Two or More Races" category (5% in 2022) further supports the notion of increasing diversity and cultural blending within the community.