This economic growth does not appear to correlate strongly with demographic changes, given the persistent lack of diversity. The improving economic conditions might attract a more diverse population in the future if the trend continues. Population figures have fluctuated over the decade, dropping from 60 in 2010 to a low of 42 in 2017, before rebounding to 63 in 2022. This recent population growth coincides with the period of highest median income.

Seltzer's lack of racial diversity is atypical for many urban and suburban areas in the United States, which have generally been trending towards greater diversity over the past decade. The recent economic growth in Seltzer, particularly the sharp increase in median income between 2019 and 2021, is notable. This could make the area increasingly attractive to potential residents and possibly lead to greater diversity in the future.

The small population and geographic size (0.07 square miles) of Seltzer make it particularly sensitive to minor demographic or economic changes. The recent appearance of residents identifying as two or more races, while a small percentage, represents a potentially significant shift for such a small community. While Seltzer remains a "Low Diversity" community, its recent economic growth and the slight increase in racial diversity could potentially signal the beginning of broader demographic changes. Any significant shifts in diversity are likely to be gradual and occur over an extended period.