It is estimated that nearly 800,000 children will be reported each year in the U.S; 40,000 children go missing each year in Brazil; 50,500 in Canada; 39,000 in France; 100,000 in Germany; and 45,000 in Mexico. An estimated 230,000 children go missing in the U.K. each year, or one child every 5 minutes.[3]
https://www.factretriever.com/missing-people-facts
Two boys abducted in Missouri were found in a St. Louis suburb last Friday, in the home of a pizza shop employee. One had been missing for less than a week, the other for more than four years. News reports cited a statistic that 800,000 children disappear every year—or about 2,000 a day.
http://www.slate.com/articles/news_and_politics/explainer/2007/01/800000_missing_kids_really.html
Teenage runaways are overwhelmingly female: 71 per cent of missing 13- to 17-year-olds are girls. With adults, it is different. Men predominate, with 73 per cent of all disappeared people over the age of 24 being male. Adult missing cases are also far less likely to be resolved quickly, or at all.
http://www.independent.co.uk/news/uk/home-news/the-missing-each-year-275000-britons-disappear-1801010.html
Of the 900,000 people reported missing each year in the U.S., 50,000 are over the age of 18. Half of missing adults are white, 30% are African American, and 20% are Latino.[2] Half of the 800,000 missing-juvenile cases reported each year are runaways.
https://www.factretriever.com/missing-people-facts
Missing People, the charity that helps both the disappeared and those left behind, told us that 250,000 missing persons reports each year – more than 30,000 higher than any previous total – is probably an underestimate; others put the total nearer 275,000.
http://www.independent.co.uk/news/uk/home-news/the-missing-each-year-275000-britons-disappear-1801010.html
Some disappear for decades, and sources, including some inside the police, say the number of people in Britain who have been missing from family, friends and usual haunts for more than a year is at least 16,000 and could be as many as 20,000.
http://www.independent.co.uk/news/uk/home-news/the-missing-each-year-275000-britons-disappear-1801010.html
4,432,880 people globally went missing, never to return, in past 20 years. In the summer of 2005, an elderly woman with dementia left her residence in Medicine Hat, Alberta. No one knows why she left, or where she thought she was going.
https://www.sott.net/article/265419-4432880-people-globally-went-missing-never-to-return-in-past-20-years
As of December 31, 2012, NCIC contained 87,217 active missing person records. Juveniles under the age of 18 account for 32,225 (36.9 %) of the records and 15,141 (17.4 %) were for juveniles between the ages of 18 and 20.*. During 2012, 661,593 missing person records were entered into NCIC, a decrease of 2.5 % from the 678,860 records entered in 2011.
https://www.fbi.gov/about-us/cjis/ncic/ncic-missing-person-and-unidentified-person-statistics-for-2012
These statistics also conceal another: globally, 607 people go missing every single day, without a trace. Over a year, this totals 221,644 missing individuals; over twenty years, this totals 4,432,880 - more than the population of New Zealand, or almost the entire population of Ireland (2011 statistics).
https://www.sott.net/article/265419-4432880-people-globally-went-missing-never-to-return-in-past-20-years
When the categories get conflated, the statistics can become confusing. Take the number 800,000: It's true that 797,500 people under 18 were reported missing in a one-year period, according to a 2002 study.
http://www.slate.com/articles/news_and_politics/explainer/2007/01/800000_missing_kids_really.html
how many people go missing each year
900,000 people reported missing each year in the United States. There are 900,000 people reported missing each year in the United States.