Get language and country from a browser in ASP.NET by Mads Kristensen I recently had the challenge of retrieving a country based on the browser language. It was used to pre-select a country in a drop down list so the user didn’t have to. I knew it wasn’t going to be 100% accurate but probably more like 80-90%. That’s because some people change the browser language instead of their native language and others use a non-ISO standard language. And last, some clients just don’t send language information. It wasn’t an option to use a database that mapped IP addresses to countries, so the country had to be resolved from the browser alone. Resolve the culture I decided to split the functionality up into two methods. The first one resolves the CultureInfo based on the browsers language. public static CultureInfo ResolveCulture() { string [] languages = HttpContext .Current.Request.UserLanguages; if (languages == null || languages.Length == 0 ) return nul