~65% in the Global South. Point-Topic, the most reliable source, found 913M fixed lines at the end of Q3 2017. By now (April 2, 2018,) fixed lines are over 940M. I don't know any way to be as precise for wireless-only. For Q3 2017, I find about 1B regular data users without a home wired connection. I'm estimating ~500M wireless only "connections" to compare with the landline figures (Follow links or charts at end.) Update 1/10to reflect a higher estimate for Indonesia.

25% have English as a primary language, per the chart below. 75% do not. Chinese is 19%; Spanish is 8%; almost 25% speak languages outside the top 10. Google translation is almost but not quite good enough to bridge that. 

I haven't found a reliable figure for the number of wireless-only data users in mobile, so I made a rough estimate. In the developed world, there are often more than two "users" per landline connection. (Facebook user numbers are my main source.)  The world is addicted to mobile. Some families have many users. To have a mobile data only figure to compare with the landline totals, I estimated ~500M "Connections." 

The data is very weak, so I'm using low estimates. Even the number of mobile users is not reliable. The Ericsson figure of 900M in Africa is based on SIM cards and carriers exaggerations. As many as half may be second SIMs, expired, etc. The conclusion holds; this is a wildly different Internet than even five or ten years ago. 

India has more Facebook users than the U.S. and the gap is getting wider. Almost all the growth is in Africa, Asia, and Latin America. The Amazons, Facebooks, and Googles know this well. So do all the equipment vendors.  But most content creators, startups, and others don't realize the U.S. is now less than 15% of the Internet. The "Internet Governance" crowd fights hard to keep the old guard and allies in charge. 

The skin color, ethnicity, and income are as you would expect. 

Some data

 

Top Ten Languages Used in the Web - December 31, 2017 ( Number of Internet Users by Language )
TOP TEN LANGUAGES IN THE INTERNET	World Population for this Language (2018 Estimate)	Internet Users by Language	Internet Penetration (% Population)	Internet Users Growth (2000 - 2018)	Internet Users % of World Total (Participation)
English	1,462,008,909	1,052,764,386	72.0 %	647.9 %	25.3 %
Chinese	1,452,593,223	804,634,814	55.4 %	2,390.9 %	19.4 %
Spanish	515,759,912	337,892,295	65.5 %	1,758.5 %	8.1 %
Arabic	435,636,462	219,041,264	50.3 %	8,616.0 %	5.3 %
Portuguese	286,455,543	169,157,589	59.1 %	2,132.8 %	4.1 %
Indonesian / Malaysian	299,271,514	168,755,091	56.4 %	2,845.1 %	4.1 %
French	127,185,332	118,626,672	93.3 %	152.0 %	2.9 %
Japanese	143,964,709	109,552,842	76.1 %	3,434.0 %	2.7 %
Russian	405,644,599	108,014,564	26.6 %	800.2 %	2.8 %
German	94,943,848	84,700,419	89.2 %	207.8 %	2.2 %
TOP 10 LANGUAGES	5,135,270,101	3,206,613,856	62.4 %	1,091 %	77.1 %
Rest of the Languages	2,499,488,327	950,318,284	38.0 %	935 %	22.9 %
WORLD TOTAL	7,634,758,428	4,156,932,140	54.4 %	1,051 %	100.0 %
From: https://www.internetworldstats.com/stats7.htm Since there is no definitve primary source, these numbers should be considered estimates. Some of the 75% who are not primary English speakers do understand English.