Collection of jQuery Location Plugins
jQuery Location Picker
jQuery Store Locator Plugin
This jQuery plugin takes advantage of Google Maps API version 3 to create an easy to implement store locator. No back-end programming is required, you just need to feed it KML, XML, or JSON data with all the location information.
An advanced jQuery plugin that wraps the Google Maps API's Geocoding and Places Autocomplete services. You simply provide an input that lets you search for locations with a nice autocomplete dropdown. Optionally add a container to show an interactive map and a form that will be populated with the address details.
jQuery Address Picker Plugin is autocomplete filled by google map geocoder suggestions. Map displays selected address, even while you navigate in autocomplete suggestions. Latitude and longitude fields are just for information. You can also adjust marker position on the map.
Read How to use address picker plugin
jqIpLocation is a jQuery Plugin that returns the location of an IP address in JSON format. You can get country, country code, city name, region name, latitude and longitude information about IP address location.