In 2023, Arnold, MO had a population of 20.9k people with a median age of 39.9 and a median household income of $75,194. Between 2022 and 2023 the population of Arnold, MO grew from 20,840 to 20,884, a 0.211% increase and its median household income grew from $72,317 to $75,194, a 3.98% increase.
The 5 largest ethnic groups in Arnold, MO are White (Non-Hispanic) (90%), Two+ (Non-Hispanic) (6.22%), Two+ (Hispanic) (1.14%), Asian (Non-Hispanic) (1.04%), and White (Hispanic) (0.934%).
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.
97.5% 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 2023, the median property value in Arnold, MO was $209,700, and the homeownership rate was 79.6%.
Most people in Arnold, MO drove alone to work, and the average commute time was 27.5 minutes. The average car ownership in Arnold, MO was 2 cars per household.