Schools marked the occasion on Friday with a host of events also taking place across town on Saturday.
Here is our first collection of local photos for you to admire.
More will follow on Sunday.
More will follow on Sunday.
5. Party people
Thanks to Throston Primary School for sending us these fantastic pictures from their Coronation party. Photo: Other 3rd party
6. Watt a suit
Hartlepool disc jockey Les Watts shows his patriotic side in Hartlepool town centre on Saturday. Photo: Frank Reid
7. Glittering scene
Pupils wear crowns during their party at Throston Primary School. Photo: Other 3rd Party
8. Shelia Dodds and John Teal go head to head as they celebrate the coronation of King Charles . Picture by FRANK REID
Sheila Dodds and John Teal go head to head as they celebrate the coronation of King Charles III in Trentbrooke Avenue. Photo: Frank Reid
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