Because EAs tend to be so young (modal age 25), the median age of EAs in the 25-34 age group appears to be around 28, compared to around 30 for the general US population. Similarly, the median age within the 35-44 age group appears to be around 38, compared to 40. Since marriage rate increases so sharply with age for people 25-34 with at least a bachelor’s degree, this makes a sizable difference in the expected marriage rate.
I have two observations from the 2018 EA survey demographic data:
80% of EAs are atheist/agnostic/non-religious and 3% are Buddhist, compared to 15-20% and 1% in the US population. These categories have lower marriage rates than the general population.
Because EAs tend to be so young (modal age 25), the median age of EAs in the 25-34 age group appears to be around 28, compared to around 30 for the general US population. Similarly, the median age within the 35-44 age group appears to be around 38, compared to 40. Since marriage rate increases so sharply with age for people 25-34 with at least a bachelor’s degree, this makes a sizable difference in the expected marriage rate.