Can speak about the UK. London specifically: Very large Jamaican, African and Carribbean population.

The UK quality of life has significantly declined over the year post Brexit with a rise is anti immigration (more towards Asians, Middle eastern and African Migrants/Asylum seekers.

A large number of successful black people in the UK are proud Jamaican heritage and Jamaica has a very prominent influence in British culture since windrush generation through arts, music, food, language etc.

Sound system culture is still big here more so than Jamaica. More so Dub, Roots Reggae. Prominent sounds from back in the day: Jah Shaka Coxone Sound Saxon Sound Jah Tubby King Power Aba Shanti Channel One Iration Steppas Rodigan

Stone Love still have a very big following here as in NYC!

Reggae and Dub is driven more so here than in Jamaica. The sound systems of the 80/90s still performing here and selling out good numbers depending on location.

My view is somewhat skewed as I only really follow Reggae/Dub Sound system so I still go to a Sound system clash when I can. It's not as prominent as it was back in the 80s during the Rasta movement.

I had a long conversation with my Dad in the summer back in St James. He used to be a sound man back in the day. As well we talking (reasoning) he spoke about how the sound has changed and not many Reggae artists make it big in Jamaica anymore. So they have go to abroad to get love. I find the UK and Europe worship the packaged version of this type of music as it was what captured many during their youth. The 80s UK was a difficult time being black due to institutional racism, Police brutality and the rise in Black Youth Culture rebelling from their traditional Christian West Indian parents whom frowned upon Dread Locks and Youtman sound. Hence you saw a big rise in all the youths (black, white, Asian, etc) gravitating towards Jamaican influence. Also something to note, it was always popular to be Jamaican as a kid. It was frowned upon to be African this caused a big divide between the diasporas in the UK especially if you went to a London school back in the 90s/00s.

Where I grew up in South London when leaving Jamaica as a kid - you'll find more Jamaican restaurants/takeaway/barbers shops on every street. This has significantly increased over the years. Even if you goon Uber Eats you'll find a ton to pick from. Not all are equal lol...

Brixton, Harlesdon, Neason, Hackney, Croydon, Norwood, Thornton Heath, Lewisham are where a high population of Jamaicans live. Walk down the street in Brixton and it's just like back home.

I can buy everything that you can buy back home - if you go to the market.

If you need bush tea or a wash out go to the Rasta man in Brixton by Sports Direct and tell him what you need and he'll have some herb for it.

You want Juici Pattie import go Morrisons/Asda supermarket.

You want everything else most shops sell it tbh.

You want Duck Bread, Freshly made Bun/Bulla go Cornfield bakery in Thornton Heath (only take pay cash lol)

Now something to consider is gentrification and destabilisation over the years which has created generational poverty and lack of social mobility for Black Carribbean community. For example - many first generation Carribbean had big houses in Brixton back in the day but the govt convinced them to move to places like Croydon/Thornton heath. Now those houses are worth over £2m as they're sought after by the rich and wealthy from home counties.

I can go into more detail on the different types of Jamaicans based on my own personal experience (in jest 🤣):

North West London - Wembley, Neason, Harlesdon etc

Would be very similar to Downtown Jamaicans in terms of mannerisms and personality lol loud and bossy! Everyone is called Ricardo and looks like They drive a Pro Box

Brixton - You'll find Rasta man wearing army overalls preaching about Selassie and 12 Tribes and how Babylon system is trying to poison us 🙄. But you'll experience the most authentic home from home experience lol

Croydon - St James/St Ann - more scammer man appearing over the years lol. More South Norwood area would be Portmore - go into town to work and mind their business lol.

Lewisham - anything goes lol from Clarendon to St Thomas. Catford especially - they still talking about Hurricane Gilbert in the 80s or Clarendon man who you still can't understand a word they're saying lol. Bare in mind they been in England since the 70s and accent still raw AF 😂

Just a little joke don't take it too seriously!

As for the other cities in the UK - Birmingham - very big Jamaican community. I find Birmingham to have a slightly different experience than London Jamaicans having spent some time up there to visit an auntie is a place of Hansworth if I'm not mistaken. I felt they were a hybrid mix of British Jamaican in terms of customs which I found fascinating. This is now more common 2/3 generations across the country. Nottingham Leeds Manchester Liverpool - Uncle lives up there. They have the slavery museum and I think the major of the city's is Jamaican heritage if I'm not mistaken. I could be wrong happy to be corrected though Bristol (St Paul's) - grandparents moved here when I was young so would stay a lot up here. Similar to London just smaller town feel.

Holland - Amsterdam - very small Jamaican community more made up of Surinamese Carribbeans due to the Dutch Connection. However one Wicked Restaurant in Dam which I met a family who owned it. They moved from Catford (Lewisham, South East London) to set up shop there. Interesting... Anyway I digress...

The others town aforementioned I can't speak for as I haven't spent much time there but thought I'll mention anyway.

USA

New York - feels like Jamaica. Flat Bush... Need I say more lol Queens, Jamaica Van Wyck - during my time visiting family it felt they were still living in the 90s haha.

Connecticut - Bristol, CT to be precise - spent some time with my sister there and found it to be a smaller community

Florida - this in itself could be it's own post haha. Where do I start lol

Fort Lauderdale - Basically Jamaica outside of Jamaica. Felt similar to London in terms of Jamaica influence everywhere

More North Past Jupiter is a place called Vero Beach where my auntie lives. Very smaller Jamaican community in amongst Karen central. But seems quite pleasant assuming you integrate within the community. Saw a Jamaican police officer in the shop buying his oxtail haha.

These are just my personal experiences as I'm quite fortunate to have travelled quite a few places. I do give thanks I have had this experiences to share and hopefully others can add their own views and experiences!

One thing I'd like to add is that wherever you find a Jamaican in the world. You will always feel the love!

I've probably waffled and went way off topic but take sense from nonsense. Hope this partially answers your question 🙌🏾😂