Zip code 97018 in Columbia City, Oregon, is classified as a "Low Diversity" community with a "White Majority" as of 2022. The area has a population of 643 and a median income of $65,067. From 2013 to 2022, Columbia City maintained its status as a "Low Diversity" area with a strong "White Majority." However, subtle shifts in racial composition occurred. The White population decreased from 94% in 2013 to 86% in 2022. The Hispanic population increased from 2% in 2013 to 4% in 2022, with a peak of 13% in 2018. The population identifying as two or more races increased from 2% in 2013 to 5% in 2022. Asian and Black populations both increased slightly, reaching 2% each by 2022.

The median income in Columbia City fluctuated significantly over the decade. From 2013 to 2019, it remained relatively stable, ranging from about $60,000 to $70,000. In 2020 and 2021, there was a sharp increase to $84,310 and $90,108, respectively. However, in 2022, there was a significant drop to $65,067, closer to pre-2020 levels. These economic shifts do not appear to correlate strongly with the gradual demographic changes. The population trends have been relatively stable, fluctuating between 598 and 708 residents over the decade, with no clear correlation to income or racial composition changes.

Columbia City's slow diversification aligns with broader national trends of increasing diversity in suburban and rural areas, although the pace of change is slower than in many other parts of the country. The income volatility, especially the sharp rise and fall in 2020-2022, is unusual and may reflect unique local economic conditions or data anomalies. It would be valuable to compare this trend with other similar-sized communities in Oregon to determine if this is a localized phenomenon or part of a broader regional trend.