The zip code 21673 in Trappe, Maryland, is categorized as a "Low Diversity" community with a "White Majority" as of 2022. The population is 81% white, with a median income of $78,127. Trappe had a population of 2,975 in 2022 and has experienced some demographic shifts over the past decade while maintaining its predominantly white character.

Throughout the 2013-2022 period, Trappe has consistently maintained a "White Majority" status, with the white population never falling below 74% of the total. The Black population has decreased from 16% in 2013 to 10% in 2022. The Hispanic population has grown from 2% in 2013 to 7% in 2022, indicating a trend towards a more "Transitional Community" in terms of Hispanic representation. Other racial groups, including Asians and those identifying as two or more races, have maintained relatively stable, low percentages throughout the decade.

The median income in Trappe has fluctuated over the years but shows an overall upward trend. In 2013, the median income was $74,811. It peaked in 2017 at $83,027. As of 2022, it stands at $78,127. This represents a modest increase of about 4.4% over the decade, slightly outpacing inflation. The population has decreased from 3,442 in 2013 to 2,975 in 2022, a decline of about 13.6%.