Median Household Income
$78,370 ± $6,883
Median Home Value
$220,000 ± $8,959
Median Gross Rent
$1,112 ± $60/mo
Per Capita Income
$37,598
Poverty Rate
8.2%
Unemployment Rate
2.8%
Homeownership Rate
79.8%
Bachelor's Degree or Higher
25.4%
Median Age
39.7
Average Commute
25 min
Households
8,394
Veterans
1,046
Population Over Time
Arnold shrank 0.3% from 2014 to 2024.
2014
21,020
2016
21,196
2018
21,107
2020
21,144
2022
20,840
2024
20,956
Population by Race & Ethnicity
White
88.9%
Hispanic or Latino
2.6%
Black or African American
0.2%
Asian
1.8%
Nearby Cities in Missouri
Source: U.S. Census Bureau, American Community Survey, ACS 2020-2024. Estimates carry a margin of error (shown as ±) inherent to ACS's sample-based methodology.