The zip code 75422 in Campbell, Texas, is classified as a "Low Diversity" area as of 2022. The population is 88% white, with a median income of $57,030 and a total population of 3,109 residents. This area has maintained its low diversity status over the past decade, with the white population consistently above 80%. Minor fluctuations in demographics have occurred, including a slight decrease in the white population from 2013 to 2016 (82% to 80%), followed by an increase to 88% in 2017. From 2018 to 2022, the white population has remained stable at 86-88%.

The Hispanic population showed some growth from 10% in 2013 to 11% in 2019, but declined to 5% in 2022. The Black population has remained consistently low, currently at 1%. There has been a slight increase in the "Two or More Races" category, from 0% in earlier years to 3% in 2022. The median income in the area has fluctuated over the past decade, remaining relatively stable between $54,000 and $57,000 from 2013 to 2019, with a significant increase in 2020 and 2021 to $66,964 and $71,341 respectively, before declining back to $57,030 in 2022.

The population has grown modestly but consistently, increasing from 2,560 in 2013 to 3,109 in 2022, representing a growth of about 21% over a decade. This growth rate exceeds the average U.S. growth rate, indicating that the area is attracting new residents despite its low diversity. The median income has generally remained below the Texas state median income, suggesting this zip code represents a relatively lower-income area within the state.