The following is a list of the longest possible values for Cities, States/Provinces, Countries, Phone Numbers, etc. If you know something to be incorrect, please update the wiki.

These values are useful when determining the required length field for your database.

FirstName: 35 (http://stackoverflow.com/questions/128099/what-is-the-longest-human-name-you-can-expect)

LastName: 21 (http://thelongestlistofthelongeststuffatthelongestdomainnameatlonglast.com/long42.html)

City: 58 (http://www.thailandlife.com/ericshackle/placename.html)

State: 30 - guess

Zip: 10 -guess

Phone: 17 -guess

country: 74 (http://thelongestlistofthelongeststuffatthelongestdomainnameatlonglast.com/long161.html)

What is the Maximum And Minimum Value for Latitude and Longitude?

Maximum value of Latitude is 90 degrees (at the poles)

Minimum value of Latitude is 0 degrees (at the Equator)

Maximum value of Longitude is 180 degrees ( eastward from Greenwitch)

Minimum value of Longitude is -180 degrees ( westward from Greenwitch)