Arnold, Missouri
Arnold is a city in Jefferson County, Missouri, with an estimated population of 21,059 in 2023. It sits at 38.4260, -90.3693 in the America/Chicago time zone.
| Field | Value |
|---|---|
| Place name | Arnold |
| Type | city |
| State | Missouri (MO) |
| County | Jefferson County |
| Population (2023 est.) | 21,059 |
| Land area | 11.53 sq mi (29.86 km²) |
| Coordinates | 38.4260, -90.3693 |
| Time zone | America/Chicago |
| ZIP codes | 63010 |
ZIP codes and area codes for Arnold
Arnold covers 1 ZIP code: 63010. Browse all ZIP codes in Missouri for the full list.
Where is Arnold?
Arnold is located in Missouri, in Jefferson County. The coordinates above can be pasted directly into any map service. The nearest indexed places are listed below, which is a useful check when two states share a place name.
Nearby places
Green Park 11 km · MOSunset Hills 12 km · MOLakeshire 13 km · MOFenton 13 km · MOColumbia 14 km · ILGrantwood Village 14 km · MOCrestwood 15 km · MOValmeyer 15 km · IL
Other places in Jefferson County
Festus 13,443De Soto 6,493Pevely 6,064Herculaneum 5,245Crystal City 4,717Hillsboro 3,502Byrnes Mill 3,185Olympian Village 715Lake Tekakwitha 235
Frequently asked questions
What county is Arnold, MO in?
Arnold is in Jefferson County, Missouri.
What is the population of Arnold, MO?
The 2023 Census Bureau estimate is 21,059.
What time zone is Arnold in?
Arnold is in the America/Chicago time zone.