| Place | Helena (historical) |
| County | Pettis |
| State | Missouri |
| Country | United States of America |
| Continent | North America |
| Time Zone | (UTC-4 to -12, +10, +11), Summer (DST), (UTC-4 to -10[d]) |
| Currency | USA Doller (USD) |
| Dialing Code | +1 |
| Date format | MM/DD/YYYY |
| Driving side | Right side |
| Internet cTLD | .us .gov .mil .edu |
| Language | American English |
| Time difference | minutes |
| Latitude | 0 |
| Longitude | 0 |
Helena (historical) is located in the county of Pettis of the state of Missouri, United States of America. The latitude 0 and longitude 0 are the decimal geocoordinate of the Helena (historical).
Most of the Helena (historical) people speak American English. They also use American English for writing system and they use at schools and education institution. Helena (historical) people use American English language for communication.
The vehicle driving side in Helena (historical) is right, all vehicles should take right side during driving. Helena (historical) people are using its national currency which is United States doller and its internationl currency code is USD. Helena (historical) phones and mobiles can be accesed by adding the united states country dialing code +1 from abroad. Helena (historical) people are following the yyyy/mm/dd date format in day-to-day life. Helena (historical) domain name extension( cTLD) is .us .