Arnold
A city in Jefferson County, Missouri — population 21,145 as of 2020.
This Afternoon
74°F
Drizzle Likely65% precip
Tonight
67°F
Drizzle Likely63% precip
Sunday
81°F
Slight Chance Drizzle then Partly Sunny19% precip
Sunday Night
66°F
Mostly Clear4% precip
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Arnold by the numbers
Population
21,145Population figure, 2020
Households & income
- Area
- 11.52 sq mi (29.85 km²), 0 sq mi water
- Median age
- 39.7
- Households
- 8,394
- Persons per household
- 2.5
- Median household income
- $78,370
- Median house value
- $220,000
Municipal office
- Office
- FINANCE DIRECTOR
- Address
- 2101 JEFFCO BLVD, ARNOLD, MO 63010