concatenation of strings when entering city, state and zip code

[f0rumh4x]

I have written my code, but can't seem to figure out why it doesn't enter the while loop and start asking for Input. Any insight would be greatly appreciated. Just need a direction to go in.

#include <iostream>
#include <string>
using namespace std;

int main()
{
	//declare variables
	string cityName = "";
	string stateName = "";
	string zipCode = "";
	string fullAddress = "";
	string loopValue = "";

	cout << "Enter -1 to end or press enter to key in a date: ";
	getline(cin, loopValue);

	while (loopValue != "-1");
	{
		cout << "Enter city: ";
		getline(cin, cityName);

		cout << "Enter state: ";
		getline(cin, stateName);

		cout << "Enter zip code: ";
		getline(cin, zipCode);

		fullAddress = cityName + ", " + stateName + "  " + zipCode;
		cout << fullAddress << endl;

		cout << "Enter -1 to end or press enter to key in a date: ";
		getline(cin, loopValue);
	}

	cin.get();
	return 0;
} //end of main function