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Castle: Season Six Ratings

Castle TV show ratingsThe ratings for Castle have been coming down over the last couple seasons. Will they keep falling? Could the show end up being cancelled or is it almost sure to be renewed because of syndication profits? Stay tuned!

On Castle, Rick (Nathan Fillion) and Kate’s (Stana Katic) relationship continues to evolve while they continue to solve crimes. The show also features the talents of Susan Sullivan, Molly Quinn, Jon Huertas, Tamala Jones, Seamus Dever, and Penny Johnson Jerald.

The ratings are typically the best indication of a show’s likelihood of staying on the air. The higher the ratings (particularly the 18-49 demo), the better the chances for survival. This chart will be updated as new ratings data becomes available — usually the next day, around 11:30am EST/8:30am PST. Refresh to see the latest.

How are your shows doing? Check the season rankings: ABC | CBS | The CW |FOX | NBC

5/8 update: Castle has been renewed for a seventh season.

5/13 update: You can see the rest of the latest night’s ratings in context.

Note: If you’re not seeing the updated chart, please try reloading the page or view it here.

For comparisons: The fifth season of Castle averaged a 2.0 rating in the 18-49 demographic with 10.18 million total viewers.

Note: These are the final national numbers (unless noted with an “*”). These are different from the fast affiliate numbers which are just estimates of the actual ratings and are reported on by most other outlets. The final nationals are typically released within 24 hours of the programming or, in the case of weekends and holidays, a couple days later.

What do you think? Do you still like the Castle TV series? Do you think it should be cancelled or be renewed for a seventh season?

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{ 183 comments… read them below or add one }

Susan May 6, 2015 at 10:11 pm

Please don’t let Castle be canceled. Let Beckett get pregnant and let the shows continue on. I love his mother and daughter, they give a lot to the show also. Everyone in the show is great. Please continue on with this show.


Frosty May 5, 2015 at 4:09 pm

CASTLE is the best show on TV!! Please don’t cancel tis terrific show.


CORAZON May 1, 2015 at 12:24 pm

is the series Castle being cancelled….i love that show … is the only series i watch on TV….bring it back please…..cora


susan April 30, 2015 at 12:01 pm

I Love to watch Castle it’s the best series ever, I watch the reruns but I like it better now. this is the only series I watch, one of the few shows that have interesting murders mixed with a bit of comedy you could cancel any show that you want but NOT CASTLE


connie April 28, 2015 at 5:45 pm

i love Castle so much I even watch it on tnt – old reruns. I don’t care I just totally LOVE castle! it it’s cancelled I will be much more upset than if Greg’s is cancelled.


jo Ann April 22, 2015 at 6:44 am

Agree time for Castle and Bones to go!


Steve Huish April 22, 2015 at 9:04 am

Castle is still a lovely series and has been very well written. However, the thrill of ‘will they or wont they’ has gine I am afraid. The story lines are still very well thought out but sadly no writing can replace that excitement. Therefore, unless sonething radical happens I can see the series slowly being withdrawn because the ratings have gone down and sadly will continue to go down.


Lesa April 6, 2015 at 7:45 pm

They need to keep Castle going.It is a great show so please do not canceal castle.


Evelyn March 31, 2015 at 6:35 pm

It looks lime my two favorite shows are being canceled. It makes not really care if I even have a TV. I am so hoping that Castle and Bones will be saved.


mike S March 30, 2015 at 9:28 pm

Best series still on television, after 7 seasons not to many series can make that claim


Stephen Huish January 30, 2015 at 6:49 am

Castle is just a wonderful series full of clever detective stories and a wonderfully evolving romance mixed with very good screen writing.
I live in London UK and can’t keep my hands off the dvd box set. This is the best detective duo since Moonlighting in the 80’s and best here since Bergerac.

Please please never stop making them as there so entertaining. The only series I would say is on a par in the UK with Castle is Sherlok.

All the best
Steve Huish


Livus48 January 22, 2015 at 12:55 pm

Still the best show on TV ,keep it on,and continue to be amazed


jet January 22, 2015 at 4:52 pm

very good program worth keeping


S.Orms February 14, 2015 at 6:26 pm

I totally agree with you. Only show I make a point of watching!


Judy January 22, 2015 at 11:48 am

Please leave Castle on!!!! One of the few shows that have interesting murders mixed with a bit of comedy – and no 4letter words being bleeped out or naked sex scenes!!!! Please leave us something decent to watch! I never miss it!!


Anonymous December 2, 2014 at 2:06 pm

Keep it going !!! Never miss Castle


Anonymous April 16, 2015 at 7:00 am

Love This Show! It’s the Only show my husband and I will watch together!


Holly Dodzian April 16, 2015 at 3:20 pm

I love Castle too. The ONLY show I look forward to on TV. My husband and I will watch it together. Please do not cancel this show. Thank you.


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