The zip code 98580 in South Creek, Washington, is categorized as a "Low Diversity" community with a "White Majority" as of 2022. The area has a population of 11,676 and a median income of $83,206, indicating a relatively affluent suburban or rural setting.

Over the past decade, South Creek has maintained its status as a "Low Diversity" community with a "White Majority." However, there are indications of a gradual shift towards becoming a "Transitional Community". The white population has decreased from 92% in 2013 to 79% in 2022. There has been an increase in the Hispanic population from 1% in 2013 to 8% in 2022, and those identifying as two or more races have increased from 3% in 2013 to 7% in 2022. Other minority groups, such as Black and Asian populations, have also seen slight increases, though they remain small portions of the overall demographic.

The median income in South Creek has fluctuated over the years but shows an overall upward trend. In 2013, the median income was $78,864. It reached a low point of $69,748 in 2016. By 2021, it peaked at $96,631 before settling at $83,206 in 2022. This economic trajectory correlates with the demographic shifts. The period of lowest income (2016) coincides with the beginning of more noticeable demographic changes. As the community became slightly more diverse, median income generally increased, suggesting that the influx of new residents may have brought economic benefits.