This will block any country IP that you want. It's as easy to setup and use.

jack111111

Country and Continent Blocker

David Merinas

miguel.arroyo

WP Maltor

This plugin blocks traffic from malicious IP and Tor Network

karlkiesinger

This plugin “hides” Your WordPress site from traffic that is coming from any Country (you do not select). 
We give you three options now 
1. https://ipstack.com this is a free service but if you have more then 1,000 requests per month you can find out the best plan for your web site. 
2. https://ipgeolocation.io this is a free service for Non-Commercial Usage. but if you have more then 30,000 requests per month / 1,000 Daily Limit you can find out the best plan for your web site. 
3. https://ipapi.com this is a free service but if you have more then 1,000 requests per month you can find out the best plan for your web site.
If you need help, go to http://globalwebplugin.com. As well if it does not work for you. 
Tell us please
When a IPs Country is detected the plugin will act in one of these ways that you have pick:
<ul>
<li>
Blank page
</li>
<li>
Redirection
</li>
<li>
404 Error Page
</li>
<li>
Default pic
</li>
</ul>
<h3>3rd Party service</h3>
https://ipstack.com this is a free service but if you have more then 1,000 requests per month you can find out the best plan for your web site. 
https://ipgeolocation.io this is a free service for Non-Commercial Usage. but if you have more then 30,000 requests per month / 1,000 Daily Limit you can find out the best plan for your web site. 
https://ipapi.com this is a free service but if you have more then 1,000 requests per month you can find out the best plan for your web site.
If this plugin take off and become too much for the service, we will do it in house on are web servers.

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