The proximity to major hospitals and a high concentration of private medical facilities has drawn many health care professionals into the areas, as well as police officers, lawyers, and small business owners, particularly in the fields of construction and food services.

Based on data from the 2010 United States Census, the population of the combined Allerton-Pelham Gardens neighborhood was 28,903, an increase of 393 (1.4%) from the 28,510 counted in 2000.

Smaller numbers of Irish-Americans and German-Americans have also made this largely Catholic community home since significant development began in the 1920s, with a construction boom in the 1950s.

[12] In 2018, an estimated 21% of Pelham Gardens and Morris Park residents lived in poverty, compared to 25% in all of the Bronx and 20% in all of New York City.

Based on this calculation, as of 2018[update], Pelham Gardens and Morris Park are considered high-income relative to the rest of the city and not gentrifying.

[14] Pelham Gardens is served by the New York City Fire Department (FDNY)'s Engine Co. 97 at 1454 Astor Avenue.

[9]: 14 The concentration of fine particulate matter, the deadliest type of air pollutant, in Pelham Gardens and Morris Park is 0.0074 milligrams per cubic metre (7.4×10−9 oz/cu ft), less than the city average.

[9]: 13  In Pelham Gardens and Morris Park, 32% of residents are obese, 14% are diabetic, and 31% have high blood pressure—compared to the citywide averages of 24%, 11%, and 28% respectively.

[19] Pelham Gardens and Morris Park generally have a lower rate of college-educated residents than the rest of the city as of 2018[update].

[9]: 6  The percentage of Pelham Gardens and Morris Park students excelling in math rose from 32% in 2000 to 48% in 2011, though reading achievement remained constant at 37% during the same time period.

[20] Pelham Gardens and Morris Park's rate of elementary school student absenteeism is slightly higher than the rest of New York City.

[9]: 6 [10]: 24 (PDF p. 55)  Additionally, 74% of high school students in Pelham Gardens and Morris Park graduate on time, about the same as the citywide average of 75%.