Zip code 85646 in Tubac, Arizona, is classified as a White Majority community with Moderate Diversity as of 2022. The white population comprises 64% of the total, while the Hispanic population accounts for 32%. The median income for 2022 was $55,522, with a population of 1,146 residents.

Tubac has undergone a gradual transition from a Low Diversity community towards Moderate Diversity over the past decade. In 2013, the area was characterized by a White Majority (79%) with a Hispanic minority (20%). By 2022, the White population decreased to 64%, while the Hispanic population increased to 32%. This shift indicates a trend towards a more diverse community composition, though it has not reached the threshold for High Diversity or Majority-Minority status. The emergence of a small Two or More Races category (4% in 2022) further supports this diversification trend.

The median income in Tubac has fluctuated over the past decade. From 2013 to 2019, there was a general upward trend, with median income rising from $41,826 to a peak of $67,303 in 2018. Since 2019, there has been a decline, with the 2022 median income at $55,522. The period of increasing diversity initially corresponded with rising median incomes, but the recent decline in median income despite continued diversification indicates that other factors are also influencing the local economy.