Arnold, Missouri

Arnold, Missouri
Arnold Water Tower from I-55 North (color is sky blue since Nov 2015)
Arnold Water Tower from I-55 North
(color is sky blue since Nov 2015)
Location within Jefferson County and Missouri
Location within Jefferson County and Missouri
Map
Interactive map of Arnold
Coordinates: 38°25′47″N 90°22′24″W / 38.42972°N 90.37333°W / 38.42972; -90.37333
CountryUnited States
StateMissouri
CountyJefferson
Government
 • TypeMayor-Administrator-Council[1]
 • MayorRon Counts[2]
 • AdministratorBryan Richison[3]
Area
 • Total
11.53 sq mi (29.86 km2)
 • Land11.53 sq mi (29.85 km2)
 • Water0.00 sq mi (0.01 km2)
Elevation522 ft (159 m)
Population
 (2020)
 • Total
20,858
 • Density1,809.80/sq mi (698.79/km2)
Time zoneUTC-6 (Central (CST))
 • Summer (DST)UTC-5 (CDT)
ZIP code
63010
Area code636
FIPS code29-01972[6]
GNIS ID2393991[5]
Websitearnoldmo.org

Arnold is a city in northeastern Jefferson County, Missouri, situated near the confluence of the Meramec and Mississippi rivers. A suburb of St. Louis, the city lies within the Greater St. Louis metropolitan statistical area. The population was 20,858 at the 2020 United States census, which makes it the most populous community in the county.

  1. ^ "Forms of Government for Missouri Municipalities" (PDF). Missouri Municipal League. p. 18. Retrieved September 4, 2024.
  2. ^ "Mayor". The City of Arnold, Missouri. Retrieved September 4, 2024.
  3. ^ "Administrator". The City of Arnold, Missouri. Retrieved September 4, 2024.
  4. ^ "ArcGIS REST Services Directory". United States Census Bureau. Retrieved August 28, 2022.
  5. ^ a b U.S. Geological Survey Geographic Names Information System: Arnold, Missouri
  6. ^ "U.S. Census website". United States Census Bureau. Retrieved January 31, 2008.