Here’s the breakdown for the most populous states, which would cover most people in the US. This also includes the most restrictive states in terms of gun laws like NY and CA, so most will be more permissive than this.
California: Prohibits carrying a loaded firearm in a vehicle unless it is in a locked container or the trunk. Concealed carry permit holders must adhere to these rules.
Texas: Allows permit holders to carry a loaded firearm in their vehicle.
Florida: Allows permit holders to carry a loaded firearm in their vehicle.
New York: Generally restrictive. In New York City, it is prohibited to have a loaded firearm in a vehicle. In other parts of the state, a permit is required, and rules can be strict.
Pennsylvania: Allows permit holders to carry a loaded firearm in their vehicle.
Illinois: Allows permit holders to carry a loaded firearm in their vehicle.
Ohio: Allows permit holders to carry a loaded firearm in their vehicle.
Georgia: Allows permit holders to carry a loaded firearm in their vehicle.
North Carolina: Allows permit holders to carry a loaded firearm in their vehicle.
Michigan: Allows permit holders to carry a loaded firearm in their vehicle.
It really doesn’t vary that much by state.
You can check all 50 individually from page 1 of this document - https://handgunlaw.us/documents/USRVCarCarry-1.pdf
Here’s the breakdown for the most populous states, which would cover most people in the US. This also includes the most restrictive states in terms of gun laws like NY and CA, so most will be more permissive than this.
California: Prohibits carrying a loaded firearm in a vehicle unless it is in a locked container or the trunk. Concealed carry permit holders must adhere to these rules.
Texas: Allows permit holders to carry a loaded firearm in their vehicle.
Florida: Allows permit holders to carry a loaded firearm in their vehicle.
New York: Generally restrictive. In New York City, it is prohibited to have a loaded firearm in a vehicle. In other parts of the state, a permit is required, and rules can be strict.
Pennsylvania: Allows permit holders to carry a loaded firearm in their vehicle.
Illinois: Allows permit holders to carry a loaded firearm in their vehicle.
Ohio: Allows permit holders to carry a loaded firearm in their vehicle.
Georgia: Allows permit holders to carry a loaded firearm in their vehicle.
North Carolina: Allows permit holders to carry a loaded firearm in their vehicle.
Michigan: Allows permit holders to carry a loaded firearm in their vehicle.
Good to know actually. Appreciate the breakdown.