In 2020, Arnold, MO had a population of 21.1k people with a median age of 40.3 and a median household income of $64,678. Between 2019 and 2020 the population of Arnold, MO declined from 21,146 to 21,144, a −0.00946% decrease and its median household income declined from $66,670 to $64,678, a −2.99% decrease.
The 5 largest ethnic groups in Arnold, MO are White (Non-Hispanic) (92.2%), Two+ (Non-Hispanic) (5.28%), White (Hispanic) (1.64%), Asian (Non-Hispanic) (0.35%), and Black or African American (Non-Hispanic) (0.284%).
None of the households in Arnold, MO reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
97.9% of the residents in Arnold, MO are U.S. citizens.
The largest universities in N/A are ITT Technical Institute-Arnold (101 degrees awarded in 2015).
In 2020, the median property value in Arnold, MO was $165,700, and the homeownership rate was 74.3%.
Most people in Arnold, MO drove alone to work, and the average commute time was 29.6 minutes. The average car ownership in Arnold, MO was 2 cars per household.