does it have any twin town?
Yes, Jórvík
York
 it announced the first 'temporal twinning' with Jórvík, the Viking city on the site of York from 866 to 1066.
when did york city become new york city UNANSWERABLE where did the name york come from? The word "York"  is derived from the Brittonic name, a combination of "yew-tree" what services does it provide for the public? A police force, Statutory emergency fire and rescue service,  Yorkshire Ambulance Service
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York [SEP] Twin towns – sister cities
On 22 October 2014, it announced the first 'temporal twinning' with Jórvík, the Viking city on the site of York from 866 to 1066.