The zip code 66864 in Neosho Rapids, Kansas, is classified as a "Low Diversity" community as of 2022. The population is predominantly white, with 92% identifying as such. The current median income is $76,046, indicating a substantial increase over the past decade. The community has a population of 491 in 2022, experiencing minor fluctuations in its demographic composition over the years.

Throughout the period from 2013 to 2022, Neosho Rapids has maintained its "Low Diversity" status. The white population has consistently remained above 90%, with only slight variations. Minor shifts in racial composition include an increase in the Hispanic population from 2% in 2013 to a peak of 5% in 2017 and 2019, before declining to 1% in 2022. The population identifying as two or more races increased from 1% in 2013 to 5% in 2022, suggesting a slight trend towards increased racial mixing. A small Native American population (0-1%) appeared in the data from 2018 onwards.

The median income in Neosho Rapids has shown a significant upward trend, increasing from $51,060 in 2013 to $76,046 in 2022. This represents a 49% increase over a decade. The income growth appears to have accelerated particularly from 2018 onwards, coinciding with the slight increase in racial diversity, particularly the growth in the multi-racial population. Population figures have remained relatively stable, fluctuating between 476 and 510 over the decade.