The FBI's National Crime Information Center contained 84,136 active missing person records, as of December 31, 2013. Of those, people under the age of 18 accounted for 33,849 (40%) records.
BuzzFeed News reached out to law enforcement officials about each missing persons case and all new available information provided is included in the profiles below.
Please share this post using the #FindAMissingPerson hashtag to create awareness for the thousands of missing persons in the United States and let's help the many families and friends find the information, or tip, that leads to a reunion.
1. Alabama: Theresa Benn, Talladega County
Age: 42
Height: 5'5"
Weight: 108 pounds
Hair: Blonde
Eyes: Unknown
Known Aliases: Theresa Andrews and Theresa Dulaney
Theresa was last seen on Oct. 19, 2014, on her way to Talladega Motor Speedway in Lincoln, Alabama, according to the Talladega County Sheriff's Office. Authorities are unsure whether or not she ever made it to the racetrack. Theresa was last seen wearing blue jeans, pink cowboy boots, a black tank top, and a rhinestone-covered belt.
If you have any information about Theresa please contact Matt Hill of the Lincoln Police Department at (205) 763-4063. You can remain anonymous if you wish.
Click here for more information on Theresa Benn.
For more information on missing persons in Alabama and to find out what you can do to help, click here.
2. Alaska: Brandon Lee Jividen, Rebecca Adams, and family, Kenai Peninsula Borough
The family of Brandon Lee Jividen and Rebecca Adams were last seen in late May, 2014, in Kenai, Alaska, according to Kenai Police Chief Gus Sandahl. Sandahl told BuzzFeed News that locating the family is of the police department's "highest priority" and additional searches could happen if more information becomes available. The family is comprised of Brandon, Rebecca, and Rebecca's two daughters, Michelle and Jaracca Hundley.
If you have any information about Brandon, Rebecca, or the children, please contact the Kenai Police Department at (907) 283-7879.
Click here for more information about Brandon, Rebecca, and her children.
For more information on other missing persons in Alaska and to find out what you can do to help, click here.
3. Arizona: Huong Nguyen, Maricopa County
5. California: Elizabeth Sullivan, San Diego County
6. Colorado: Ambreen Amjad, Weld County
Age: 53
Height: 5'5"
Weight: 110 pounds
Hair: Black
Eyes: Brown
Ambreen was last seen on March 14, 2014, at North Range Behavioral Healthcenter in Greeley, Colorado, where she was being treated.
If you have any information about Ambreen, please contact the Greeley Police Department at (970) 350-9605 or case manager Jerry Brown at (817) 240-9365.
Click here for more info about Ambreen Amjad.
For more information on other missing persons in Colorado and to find out what you can do to help, click here.
7. Connecticut: Samuel Foley, Middlesex County
8. Delaware: Nefertiri Trader, New Castle County
9. Florida: James Hawthorn, Palm Beach County
11. Hawaii: Chaseson Kaaihue, Honolulu County
12. Idaho: Stephanie Jo Barrera, Cassia County
13. Illinois: Chan Williams, Cook County
14. Indiana: Tiffanie Adams, Sullivan County
Age: 20
Height: 5'6"
Weight: 125 pounds
Hair: Brown
Eyes: Hazel
Tiffanie has been missing since November 7, 2014, Sullivan City Police told BuzzFeed News, when she left her father's house with the intention of going to her mother's one block away. She never showed up and her phone has since been shut off, along with no new Facebook posts. Tiffanie is approximately eight months pregnant.
If you have any information about Tiffanie, please contact the Sullivan County Sheriff’s Department at (812) 268-4308 or an anonymous tip line at (812) 268-0854.
Click here for more information about Tiffanie Sullivan.
For more information on other missing persons in Indiana and to find out what you can do to help, click here.
15. Iowa: Ben Roseland, Clinton County
Age Then: 19
Age Now: 25
Height: 5'11"
Weight: 175 pounds
Hair: Brown
Eyes: Blue
Ben was last seen on Feb. 9, 2008, according to Iowa Cold Cases, when he left a friend's house in Clinton, Iowa, and headed a few blocks to a local grocery store. He was last seen wearing a brown polo, blue jeans, camouflage overalls, and camouflage sneakers.
If you have any information about Ben, please contact the Clinton Police Department at (563) 243-1458 or send an email to info@benroseland.com.
Click here for more information on Ben Roseland.
For more information on other missing persons in Iowa and to find out what you can do to help, click here.
16. Kansas: Erica Jenista, Leavenworth County
17. Kentucky: Norma Jo Brown, Montgomery County
18. Louisiana: Tyler Domingue, St. Landry County
19. Maine: Geraldine Largay, Franklin County
Age Then: 66
Age Now: 68
Height: 5'4"
Weight: 115 pounds
Hair: Sandy blonde
Eyes: Brown
Geraldine was last heard from on July 22, 2013, when she texted her husband during her hiking venture of the Appalachian Trail, according to the Portland Press Herald. She had plans to meet him in Wyman Township, eight miles north of Poplar Ridge lean-to, where she spent the night, but never showed up.
If you have any information about Geraldine, please contact the Maine Warden Service at (207) 624-7076.
Click here for more information on Geraldine Largay.
For information on other missing persons in Maine and to find out what you can do to help, click here.
20. Maryland: Robert Branch, Baltimore City County
21. Massachusetts: Jancer Garcia, Essex County
22. Michigan: Chelsea Bruck, Monroe County
Age: 22
Height: 5'7"
Weight: 140 lbs
Hair: Blonde
Eyes: Green
Chelsea was last seen on October 26, 2014, at a Halloween party southwest of metro Detroit in rural Frenchtown Township, according to the Detroit Free Press. She has a small anchor tattoo behind her right ear. Chelsea's last known location can be seen on the map provided by Detroit Free Press.
If you have any information about Chelsea, please contact the Monroe County Sheriff's Department at (734) 240-7700.
Click here for more information on Chelsea Bruck.
For more information on other missing persons in Michigan and to find out what you can do to help, click here.
23. Minnesota: Maria Bilsborrow, Hennepin County
24. Mississippi: Nilda Lopez, Jackson County
25. Missouri: Jonny Slater, Jasper County
27. Nebraska: Jason Berglund, Buffalo County
Age: 18
Height: 5'9"
Weight: Unknown
Hair: Blond
Eyes: Blue
Jason left the University of Nebraska-Kearney on Oct. 22, 2014, according to Panhandle Post. His last known location was at an ATM (see above) in downtown Denver, Colorado. Police believe to have found his car at the Colorado Trailhead southeast of Bailey, Colorado, according to ABC 7.
If you have any formation about Jason, please contact the Park County Sheriff's Department at (719) 836-2494.
Click here for more information on Jason Berglund.
For information on other missing persons in Nebraska and to find out what you can do to help, click here.
28. Nevada: Zion Valdovinos, Clark County
30. New Jersey: Mila Kostadinova, Bergen County
Age: 18
Height: 5'2"
Weight: 90 pounds
Hair: Brown
Eyes: Hazel
Mila was last seen on June 2, 2014, in Cresskill, New Jersey, according to nj.com. She was wearing a gray sweatshirt, pajama pants, and brown Converse sneakers. She wasn't living at home at the time, but instead staying at a friend's house, according to her Twitter account.
If you have any information about Mila, please contact the Cresskill Boro Police Department at (201) 568-1400 or an anonymous tip line set up at (201) 226-5532.
Click here for more information on Mila Kostadinova.
For information on other missing persons in New Jersey and to find out what you can do to help.
31. New Mexico: Beverly Orantes-Perez, Santa Fe County
32. New York: Connor "Trapper" Trapatsos, Albany County
33. North Carolina: Charles Tobin, Wayne County
34. North Dakota: Florence Dumontet, Walsh County
35. Ohio: Amber Owens, Montgomery County
Age: 23
Height: 5'5"
Weight: 160 pounds
Hair: Black
Eyes: Brown
Amber was last seen in Dayton, Ohio, late on the evening of October 21, 2014, Montgomery County Police told BuzzFeed News. Her car was later found in the area. Amber has "Dominique" tattooed on the back of her neck and "Mrs. Mayes" on her right arm.
If you have any information about Amber, please contact Montgomery County Police's Detective Stelle at (937) 496-7768.
Click here for more information on Amber Owens.
For more information on other missing persons in Ohio and to find out what you can do to help, click here.
39. Rhode Island: Kimberly and Kelly Yates, Kent County
Ages Then: 4
Ages Now: 33
Hair: Blonde
Eyes: Blue/green
Kimberly and Kelly have been missing since Aug. 26, 1985, according to the National Center for Missing & Exploited Children. The girls were allegedly abducted by their mother, Elaine C. Yates. Kimberly's photo has been age-progressed to 28 years, and Kelly's to 24 years.
If you have any information about Kimberly and Kelly, please contact the Rhode Island State Police at (401) 444-1000.
Click here for more information on Kimberly and Kelly Yates.
For information on other missing persons in Rhode Island and to find out what you can do to help, click here.
40. South Carolina: Nicole Goodlett, Spartanburg County
Age: 28
Height: 5'6"
Weight: 130 pounds
Hair: Brown
Eyes: Brown
Nicole was last seen on February 20, 2014, in Spartanburg, South Carolina, according to the National Missing and Unidentified Persons System. She has multiple tattoos, including one on her leg, stomach, and ankle.
If you have any information about Nicole, please contact the Spartanburg Sheriff's Department at (864) 503-4500 or tip line at (888) 274-6372.
Click here for more information on Nicole Goodlett.
For more information on other missing persons in South Carolina and to find out what you can do to help, click here.
41. South Dakota: Lance and Ruby Blackhorn, Pine Ridge Reservation
Ages Then: 5
Ages Now: 7
Hair: Brown
Eyes: Brown
Lance and Ruby were last seen on June 11, 2013, in Wounded Knee, South Dakota, according to the National Center for Missing & Exploited Children. They could be in the company of their mother, possibly traveling to Montana.
If you have any information about Lance and Ruby please contact the Pine Ridge Sioux Tribal Police Department (605) 867-1463.
Click here for more information on Lance and Ruby Blackhorn.
For information on other missing persons in South Dakota and to find out what you can do to help, click here.
42. Tennessee: Dusten Toschlog, Sullivan County
Age: 38
Height: 6'0"
Weight: 200 pounds
Hair: Brown
Eyes: Blue
Dusten was last seen around 4 a.m. on March 5, 2014, in Kingsport, Tennessee, according to WCYB News. He could possibly be traveling in a 1994 brown Chevrolet Silverado, license plate number J3010D (shown above), and has family in the following states: Indiana, Arkansas, Florida, Texas, and Kentucky. He has made no contact with his family since leaving of his own free will, authorities say.
If you have any information about Dusten, please contact the Kingsport Police Department at (423) 245-3822.
Click here for more information on Dusten Toschlog.
For more information on other missing persons in Tennessee and to find out what you can do to help, click here.
44. Utah: Kayelyn Louder, Salt Lake County
Age: 30
Height: 5'5"
Weight: 125 pounds
Hair: Brown
Eyes: Brown
Kayelyn was last seen via security footage at her apartment complex on Sept. 27, 2014, in Salt Lake City, Utah, Murray City Police told BuzzFeed News. Police say she was wearing a tank top, shorts, and no shoes. Kayelyn left her wallet, phone, and pets at home.
If you have any information about Kayelyn, please contact the Murray City Police Department at (801) 264-2673
Click here for more information on Kayelyn Louder.
For more information on other missing persons in Utah and to find out what you can do to help, click here.
45. Vermont: Wayne LaRose, Addison County
46. Virginia: Zulma Pabon, Chesterfield County
47. Washington: Krishna Venkatesh, King County
48. West Virginia: William "Nick" Daniel, Raleigh County
50. Wyoming: Bethany Kenny-Klassy, Laramie County
Follow the #FindAMissingPerson hashtag on Twitter.
You can contact the authors of this post at austin.hunt@buzzfeed.com or @AustinHunt and weeddude@buzzfeed.com or @weeddude.