(CNN) At least 64 law enforcement officers have been shot and killed this year, the most in five years, according to the National Law Enforcement Officers Memorial Fund .

The 2016 shootings have spanned the nation, from California to Massachusetts.

They've exceeded the annual average of police shooting deaths over the past 10 years, 53. And this year's total is higher than the number of firearms-related police deaths in 2015. According to the fund, firearms were responsible for 41 of 123 officer fatalities in 2015, one of the safest years for officers on record.

The decade's highest total came in 2011, with 73 officers shot dead.

This year's shooting deaths include an officer on her first day on the job and a sheriff's corporal who was about to retire.

The most recent shootings happened in Americus, Georgia. An officer from Georgia Southwestern State University and a city officer were fatally shot as they checked a report of a domestic dispute at an apartment complex near the school, police said.

The total of 64 includes two incidents in which an officer was accidentally shot by another officer. Here's a look at all the officers shot and killed in the line of duty this year, as of December 13:

ALASKA

SGT. ALLEN BRANDT

Allen Brandt

Brandt, an 11-year veteran of the Fairbanks Police Department, was shot multiple times October 16 while responding to reports of gunfire. He was wearing body armor but was struck by bullets in a leg and shrapnel in an eye.

He died October 28 of complications experienced during surgery. After the shooting, the father of four had been well enough to speak at a community council meeting, saying he had predicted to his family he would be shot. The suspect, who fled in Brandt's patrol car, was arrested.

ARIZONA

OFFICER DAVID GLASSER

David Glasser

Glasser died a day later.

He and other officers had arrived outside the home in Phoenix's Laveen area. The caller's son was in a van when Glasser and his partner parked their squad car but got out of the van and shot Glasser, KTVK reported . Other officers returned fire, killing the gunman.

Glasser was survived by a wife and two children, KNXV reported.

OFFICER DARRIN REED

Officer Darrin Reed

Reed, 50, had responded to a call about a disturbance in the town of Show Low when a man shot him on November 10. The suspect was later killed in a standoff with police.

ARKANSAS

SHERIFF'S CPL. BILL COOPER

The 65-year-old Sebastian County sheriff's deputy was on the verge of retirement when he and other officers responded to a 911 call at a manufactured home August 10 in rural western Arkansas, between Greenwood and Midland.

The caller said a man had pulled a gun on his father. When deputies and officers arrived, the son, wearing body armor, fired a rifle repeatedly, killing Cooper and injuring another officer and a police dog, authorities said.

The gunman eventually surrendered and was arrested, police said.

CALIFORNIA

OFFICER JONATHAN DeGUZMAN

Jonathan DeGuzman

A fellow officer arrived and rushed DeGuzman to a hospital, where he died. His wounded colleague survived. Police arrested a 52-year-old man in connection with the shootings.

SGT. STEVE OWEN

Steve Owen

Owen, 53, of the Los Angeles County Sheriff's Department died October 5 after a suspect shot him while he was responding to a residential burglary.

Owen was a 29-year department veteran.

The suspect was apprehended.

OFFICER JOSE GILBERT VEGA

Jose Gilbert Vega

Vega, 63, was one of two Palm Springs officers shot and killed October 8 while responding to a domestic disturbance. The officers were trying to negotiate with a distraught man who was inside a residence when he fired through the closed front door, police saud.

The suspect was arrested after barricading himself in the house for 12 hours.

Vega was a 35-year veteran nearing retirement.

OFFICER LESLEY ZEREBNY

Lesley Zerebny

Zerebny had just returned to work from maternity leave.

SHERIFF'S DEPUTY JACK HOPKINS

Hopkins, of the Modoc County Sheriff's Office, was shot and killed October 19 while responding to a disturbance report. A suspect was arrested by other officers.

SGT. ROD LUCAS

Rod Lucas

Lucas, of the Fresno County Sheriff's Office, was accidentally shot dead in the chest during a chat with a detective about firearms on October 31, the sheriff said.

The shooting happened in a special investigations unit building. The detective and two other employees tried CPR and other attempts to save Lucas, but he died at a hospital.

SHERIFF'S DEPUTY DENNIS WALLACE

Dennis Wallace

Wallace had been calling in a stolen car to dispatch when he went silent. Officers found him dead from two close-range gunshots to the head.

A suspect was arrested after a manhunt.

COLORADO

SHERIFF'S DEPUTY DEREK GEER

Derek Geer

Geer, 40, of the Mesa County Sheriff's Office died February 8 after he was shot as he tried to detain a man in Grand Junction.

The deputy had responded to a report of a person walking past an office building with a handgun under his armpit, near railroad tracks south of the Interstate 70 business loop, police said. Geer saw someone matching the person's description and tried to stop him, even Tasering him, but the person shot Geer , police said. A suspect later was arrested.

Geer was an organ donor. In May, CNN published a story about a patient who received Geer's heart

SHERIFF'S CPL. NATE CARRIGAN

Nate Carrigan

Carrigan, 35, of the Park County Sheriff's Department, was fatally shot while he and two other deputies were trying to serve an eviction notice near Bailey on February 24

The gunman -- a man who was being evicted -- also shot the other two deputies, wounding them. The deputies returned fire and the man was killed, police said. Carrigan was a 13-year veteran in the department.

GEORGIA

MAJ. GREG BARNEY

Barney, of the Riverdale Police Department, was helping police in Clayton execute a drug-related warrant at an apartment when he was fatally shot on February 11, police said.

Barney was a 25-year veteran of the department and had a wife and two children, CNN affiliate WSB reported

US MARSHALS DEPUTY COMMANDER PATRICK CAROTHERS

Carothers, 53, was shot dead on the morning of November 18 in Long County, Georgia. He was trying to serve an arrest warrant for a fugitive, Dontrell Carter, when Carter shot Carothers, the US Justice Department said.

Carter also was shot; both men died at hospitals, the Justice Department said.

OFFICER JODY SMITH

Smith, who worked as a police officer at Georgia Southwestern State University, was shot as he and another officer checked a report of a domestic dispute at an apartment complex in Americus on December 7. Smith died the next day at a hospital.

The suspect was found dead of a self-inflicted gunshot wound, authorities said.

The other officer, who worked for the Americus Police Department, also died. The two officers were best friends.

OFFICER TIM SMITH

Tim Smith

The Eastman, Georgia, policeman was responding to a call about a suspicious person when he encountered a man who shot him and fled the scene. Smith died at an area hospital.

Smith died just two days before his 31st birthday.

He left behind a fiancee, two sons, a 5-month-old daughter and a stepson, his fiancee told CNN.

SHERIFF'S DEPUTY PATRICK SONDRON

Patrick Sondron

Peach County sheriff's deputies Sondron, 41, and Daryl Smallwood were called to a dispute between neighbors in central Georgia on November 6. The suspect opened fire at the deputies when they arrived. Sondron died at a local hospital.

SHERIFF'S DEPUTY DARYL SMALLWOOD

Smallwood, 39, was one of the two law enforcement officers shot on November 6.

OFFICER NICHOLAS RYAN SMARR

Nicholas Ryan Smarr

Smarr, 25, of the Americus Police Department, was shot and killed as he and another officer checked a report of a domestic dispute at an apartment complex in the southwest Georgia city December 7.

The other officer, who works at the nearby Georgia Southwestern State University, also died. The two officers were best friends.

INDIANA

SHERIFF'S DEPUTY CARL KOONTZ

Carl Koontz

Howard County sheriff's Deputy Carl A. Koontz, 27, was shot and killed March 20 in a shootout at a Russiaville trailer park while trying to serve a warrant for a man accused of failing to appear in court on charges of illegally possessing a syringe, police said.

One of Koontz's colleagues also was injured in the shooting. The shooter -- the man who was named in the warrant -- then fatally shot himself in the head, police said. Koontz, a former Marine, had nearly three years on the job.

IOWA

SGT. ANTHONY "TONY" BEMINIO

Beminio, of the Des Moines Police Department, was one of two central Iowa police officers shot while they sat in squad vehicles at intersections roughly 2 miles apart shortly after 1 a.m. on November 2, authorities said. A suspect was taken into custody.

OFFICER JUSTIN MARTIN

Martin, of the Urbandale Police Department, was one of two central Iowa police officers shot while they sat in squad vehicles at intersections roughly 2 miles apart shortly after 1 a.m. on November 2, authorities said. A suspect was taken into custody.

KANSAS

DETECTIVE BRAD LANCASTER

Brad Lancaster

The Kansas City, Kansas, detective was shot and killed May 9 while responding to a call of a suspicious person near a casino.

The gunman fled in the detective's vehicle and stole two more vehicles before being arrested, police said.

CAPT. ROBERT DAVID MELTON

The Kansas City, Kansas, officer was shot and killed on July 19 while chasing people who'd allegedly been involved in a drive-by shooting, police said.

Melton, 46, was his department's second officer to be shot dead in the line of duty after Lancaster (above).

LOUISIANA

SHERIFF'S DEPUTY DAVID F. MICHEL JR.

The Jefferson Parish sheriff's deputy was shot dead on June 22 during a confrontation with a man he had approached on the street, authorities said.

SHERIFF'S DEPUTY BRAD GARAFOLA

Sheriff's Deputy Brad Garafola

Garafola, 45, of the East Baton Rouge Parish Sheriff's Office, was one of three law enforcement officers shot dead -- and one of six shot in total -- on July 17 by Gavin Long in Baton Rouge, police said.

Long shot the officers after posting a YouTube video in which he spoke about recent protests and officer-involved shootings, and said that victims of bullying needed to resort to bloodshed.

OFFICER MATTHEW GERALD

Matthew Gerald

Gerald, 41, of the Baton Rogue Police Department, was one of three Louisiana law enforcement officers shot dead -- and one of six shot in total -- on July 17 by Gavin Long in Baton Rouge, police said.

(See entry for sheriff's Deputy Brad Garafola).

CPL. MONTRELL JACKSON

Montrell Jackson

(See entry for sheriff's Deputy Brad Garafola).

MARYLAND

SHERIFF'S DEPUTY PATRICK DAILEY

Dailey was called to a Panera Bread restaurant to investigate a man, but as Dailey talked to him the man shot him in the head, police said. The man fled toward nearby apartments, where he shot and killed Deputy Mark Logsdon (below), police said. Other deputies shot the gunman, who was pronounced dead at the scene.

SHERIFF'S DEPUTY MARK LOGSDON

OFFICER JACAI COLSON

Jacai Colson

Colson and other Prince George's County police officers were in a shootout with a gunman who'd ambushed them outside their police station when Colson was shot and killed by mistake by a fellow officer on March 13, police said.

Colson, a 28-year-old undercover narcotics detective, was in plain clothes when he drove up to the station to find the gunfight under way. An officer shot him when he left his car to confront the gunman, police said.

MASSACHUSETTS

OFFICER RONALD TARENTINO JR.

Ronald Tarentino Jr.

The 42-year-old Auburn police officer was making a traffic stop in the early morning of May 22 when an occupant of the car fatally shot him and fled, police said.

MICHIGAN

COURT BAILIFF RONALD KIENZLE

Kienzle, 63, was one of two court bailiffs shot and killed July 11 in a courthouse in Berrien County by an inmate who had grabbed a deputy's gun outside a holding cell, police said.

SUPERVISING COURT BAILIFF JOSEPH ZANGARO

Zangaro, 61, was shot and killed along with Kienzle (above) on July 11 in a courthouse in Berrien County by an inmate who had grabbed a deputy's gun outside a holding cell, police said.

SGT. KENNETH STEIL

The Detroit police's Steil was wounded by a carjacking suspect with a sawed-off shotgun during a foot pursuit. Steil was expected to recover but developed a blood clot in the hospital and died two weeks later on September 17.

OFFICER COLLIN ROSE

Officer Collin Rose

Rose, a 29-year-old officer with Wayne State University's police department in Detroit, was shot near campus while trying to stop someone on November 22. He died a day later at a hospital.

Rose was on a neighborhood patrol in an area that has recently seen a rash of auto crimes. He saw a subject on a bike approach the area, and he called for backup, police said. When the backup officer arrived, he found Rose with a gunshot wound to the head. The circumstances surrounding the shooting weren't immediately clear.

MISSISSIPPI

SPECIAL AGENT LEE TARTT

Lee Tartt

Tartt, 44, an agent with the Mississippi Bureau of Narcotics, was fatally shot on the morning of February 20 as he and other officers entered a home in Iuka, trying to end a six-hour standoff with a man inside, police said.

Police had been called there on a report of a domestic disturbance. Tartt was a 22-year veteran of law enforcement and had been with the Mississippi Bureau of Narcotics since 2000, CNN affiliate WREG in Memphis reported . He left a wife and two children.

MISSOURI

OFFICER BLAKE SNYDER

Snyder, 33, of the St. Louis police died October 6 while responding to a disturbance call . The officer walked up to a vehicle, and a suspect shot him once with a 9 mm pistol. His partner shot and wounded the suspect.

NEW MEXICO

OFFICER JOSE CHAVEZ

Jose Chavez

Chavez, 33, had just arrived to help an officer with a traffic stop in Hatch on August 12 when a passenger of the stopped vehicle exited and shot him, police said.

Chavez was taken to a hospital, where he had surgery before he was pronounced dead, police said. Three people were taken into custody.

OFFICER CLINT CORVINUS

Clint Corvinus

Corvinus, a 4½ year veteran of the Alamogordo Police Department, was shot and killed September 2 as he and another officer pursued a wanted suspect on foot.

NEW YORK

SERGEANT PAUL TUOZZOLO

New York City police sergeant Tuozzolo, 41 , responded to a 911 call from a woman who said an armed man had broken into an apartment on November 4. The officers eventually found the man who shot at them, killing Tuozzolo and injuring another officer. Police returned fire, killing the man. Tuozzolo had served with the NYPD for 19 years.

NORTH CAROLINA

OFFICER TIM BRACKEEN

Brackeen of the Shelby Police Department was shot September 10 while serving an arrest warrant. He died two days later at the hospital. The suspect was arrested a few days later in Rhode Island and charged with murder.

NORTH DAKOTA

OFFICER JASON MOSZER

Moszer, 33, of the Fargo Police Department was shot February 10 during a standoff that followed a report of a domestic disturbance at a home in Fargo, police said.

He died the next day. He was six-year veteran of the department and left a wife and two stepchildren, CNN affiliate WDAY-TV reported

OHIO

OFFICER THOMAS COTTRELL

Thomas Cottrell

Cottrell was fatally shot behind the municipal building in the village of Danville on the night of January 17.

A suspect eventually was arrested. Minutes before Cottrell was killed, authorities said, the suspect's ex-girlfriend called them to say he had taken off with his weapons and was looking to kill an officer

Cottrell was one of Danville's six police officers at the time of his death.

OFFICER STEVEN SMITH

Steven Smith

Columbus police Officer Steven Smith was in an armored vehicle April 10, serving on a SWAT team that was trying to serve a warrant for alleged arson, when a man inside an apartment fired a shot into the vehicle, hitting Smith, CNN affiliate WCMH reported

Smith, 54, died two days later. He left a wife and two adult children, WCMH reported.

The man suspected of shooting Smith was arrested.

OREGON

SGT. JASON GOODDING

Jason Goodding

Goodding and another officer were trying to arrest a wanted man on a street in the Pacific coast town of Seaside on February 5. The suspect resisted arrest and shot Goodding , who returned fire and hit him, police said.

Both Goodding, a 39-year-old Seaside police officer, and the suspect later died at a hospital.

PENNSYLVANIA

OFFICER SCOTT BASHIOUM

Canonsburg police Officer Scott Bashioum was shot dead November 10 as he approached a home to check a report about a domestic dispute, police said.

PUERTO RICO

SGT. LUIS A. MELENDEZ-MALDONADO

Melendez-Maldonado of the Puerto Rico Police Department was shot and killed October 12 while he and other agents conducted a narcotics investigation.

SOUTH CAROLINA

OFFICER ALLEN LEE JACOBS

Allen Jacobs

Greenville police Officer Allen Lee Jacobs, 28, was fatally shot on March 18 by a 17-year-old boy, police said.

Jacobs and at least one other officer were trying to interview the teen about a weapon purchase, but the teen ran. After the officers gave chase, the teen opened fire, hitting Jacobs, according to police. The teen eventually fatally shot himself, police said.

Jacobs left two sons and a wife who was pregnant.

TENNESSEE

SPECIAL AGENT DE'GREAUN FRAZIER

De'Greaun Frazier

The Tennessee Bureau of Investigation agent was working undercover in Jackson, trying to buy illicit drugs from someone as they were sitting in a vehicle during in a sting operation, when the target pulled out a gun and tried to rob Frazier and an informant on August 9, authorities said.

Frazier, 35, was shot once and died at a hospital, the bureau said. The person accused of shooting him was arrested.

Frazier had joined the bureau only six months earlier. He was the first TBI officer ever killed in the line of duty.

OFFICER KENNY MOATS

Kenny Moats

The 32-year-old Maryville police officer and a partner went to a home to check a report of domestic violence involving someone with a gun on August 25. They parked their vehicle behind the house, found the alleged victim and helped that person to safety, police said.

The officers then took cover behind their vehicle to wait for help, but a man opened fire on them from a garage, hitting Moats in the neck, police said.

Other officers eventually arrested the shooter, police said. Moats died at a hospital.

TEXAS

OFFICER DAVID HOFER

The suspect opened fire when Hofer and a partner arrived, police said.

SENIOR CPL. LORNE AHRENS

Lorne Ahrens

The gunman, whom police eventually killed, had expressed that he was upset about recent police shootings, wanted to kill white people and white police officers, and "expressed anger for Black Lives Matter," Dallas police Chief David Brown said.

The protest was over two shootings earlier in the week in which officers fatally shot black civilians in Louisiana and Minnesota

OFFICER MICHAEL KROL

Michael Krol

SGT. MICHAEL SMITH

Michael Smith

OFFICER BRENT THOMPSON

Brent Thompson

OFFICER PATRICK ZAMARRIPA

Patrick Zamarripa

DETECTIVE BENJAMIN MARCONI

Benjamin Marconi

San Antonio police officer Marconi, 50, was shot in his patrol car on November 20 outside police headquarters in what the department's chief described as a targeted killing.

UTAH

OFFICER DOUGLAS BARNEY

Douglas Barney

Barney, 44, of the United Police Department of Greater Salt Lake was shot and killed while investigating a traffic accident January 17

Barney and other officers had responded to the accident and then began to search for two people who had fled the scene. Barney found a suspect who shot the officer, police said. A shootout followed, leaving the gunman dead and another police officer injured, authorities said.

VIRGINIA

TROOPER CHAD P. DERMYER

Chad Dermyer

Dermyer, a 37-year-old Virginia State Police trooper, was participating in a training operation with other troopers at a Greyhound bus station in Richmond on March 31 when a man walked away from his luggage.

Dermyer approached the man, and after the two talked for a few seconds, the man pulled a gun from his waistband and fatally shot the trooper , police said.

Dermeyer and his colleagues had been training to look for suspicious activity. The shooter was not involved in the training program.

OFFICER ASHLEY GUINDON

On her first day on the job with Prince William County police, Guindon, 28, was shot and killed February 27 while responding to a report of domestic violence at a Woodbridge house, police said.

Two other officers were shot and injured. A man suspected of shooting them also is accused of killing his wife, whose body was found inside the home, police said.

Guindon had taken her oath of office the day earlier.

WASHINGTON

OFFICER REGINALD 'JAKE' GUTIERREZ

Reginald "Jake" Gutierrez

Gutierrez, a Tacoma police officer, was shot and killed while responding to a report of domestic violence in that port city on November 30, police said.

He was a 17-year veteran of the force and was survived by his fiancee and children, police said.

WISCONSIN

DEPUTY SHERIFF DAN GLAZE

Glaze, 33, of the Rusk County Sheriff's Office was shot and killed October 29 while investigating a suspicious vehicle. A suspect was taken into custody.

An earlier version of this story mistakenly included deceased Sgt. Craig Hutchinson of the Travis County Sheriff's Office in Texas.